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However, in this paper we present a methodology based on two new aspects: the dete05922<a class="citation_author_name" title="Browse by Author Name for Martínez-Romo, Juan" href="/fez/list/author/Martínez-Romo, Juan/">Martínez-Romo, Juan</a> and <a class="citation_author_name" title="Browse by Author Name for Araujo, Lourdes" href="/fez/list/author/Araujo, Lourdes/">Araujo, Lourdes</a> . (<span class="citation_date">2013</span>) <a class="citation_title" title="Click para ver : Detecting malicious tweets in trending topics using a statistical analysis of language" href="/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1010">Detecting malicious tweets in trending topics using a statistical analysis of language</a>. RecordArtículo de revistaPublishedInformáticaElsevierMartínez-Romo, JuanAraujo, Lourdeshttp://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1010bibliuned:DptoLSI-ETSI-MA2VICMR-1010engDetecting_malicious.pdfpresmd_Detecting_malicious.xml0957-4174bibliuned:DptoLSI-ETSI-MA2VICMRbibliuned:Setopenairebibliuned:Setarticulobibliuned:SetFundersGrupo de Procesamiento del Lenguaje Natural y Recuperación de Información. Proyecto MA2VICMR-CMSet de openaireSet de artículoSet de proyectos financiadoshttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMartínez-RomoAcceso abierto1.02566734232009-01-14T00:00:00Z3752014-11-26T23:19:27Z2015-02-07T06:32:57ZAutomatic detection of trends in time-stamped sequences : an evolutionary approachbibliuned:DptoLSI-ETSI-MA2VICMR-1085This paper presents an evolutionary algorithm for modeling the arrival dates in time-stamped data sequences such as newscasts, e-mails, IRC conversations, scientific journal articles or weblog postings. These models are applied to the detection of buz06442<a class="citation_author_name" title="Browse by Author Name for Araujo, Lourdes" href="/fez/list/author/Araujo, Lourdes/">Araujo, Lourdes</a> and <a class="citation_author_name" title="Browse by Author Name for Merelo, Juan Julián" href="/fez/list/author/Merelo, Juan Julián/">Merelo, Juan Julián</a> . (<span class="citation_date">2009</span>) <a class="citation_title" title="Click para ver : Automatic detection of trends in time-stamped sequences : an evolutionary approach" href="/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1085">Automatic detection of trends in time-stamped sequences : an evolutionary approach</a>. RecordArtículo de revistaPublishedevolutionary algorithmsevent trackingdata time-stamped sequencesburst detectionSpringer-VerlagAraujo, LourdesMerelo, Juan Juliánhttp://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1085bibliuned:DptoLSI-ETSI-MA2VICMR-1085engDocumento.pdfbibliuned:DptoLSI-ETSI-MA2VICMRbibliuned:Setopenairebibliuned:Setarticulobibliuned:SetFundersGrupo de Procesamiento del Lenguaje Natural y Recuperación de Información. Proyecto MA2VICMR-CMSet de openaireSet de artículoSet de proyectos financiadoshttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsAraujoAcceso abierto0.94945134232010-09-01T00:00:00Z5852014-11-26T23:19:27Z2015-02-10T04:10:58ZWeb spam detection : new classification features based on qualified link analysis and language modelsbibliuned:DptoLSI-ETSI-MA2VICMR-1080Web spam is a serious problem for search engines because the quality of their results can be severely degraded by the presence of this kind of page. In this paper, we present an efficient spam detection system based on a classifier that combines new lin05502<a class="citation_author_name" title="Browse by Author Name for Araujo, Lourdes" href="/fez/list/author/Araujo, Lourdes/">Araujo, Lourdes</a> and <a class="citation_author_name" title="Browse by Author Name for Martínez-Romo, Juan" href="/fez/list/author/Martínez-Romo, Juan/">Martínez-Romo, Juan</a> . (<span class="citation_date">2010</span>) <a class="citation_title" title="Click para ver : Web spam detection : new classification features based on qualified link analysis and language models" href="/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1080">Web spam detection : new classification features based on qualified link analysis and language models</a>. RecordArtículo de revistaPublishedcontent analysisinformation retrievallanguage models (LMs)link integritycontent analysisweb spam detectionInstitute of Electrical and Electronics Engineers (IEEE)Araujo, LourdesMartínez-Romo, Juanhttp://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1080bibliuned:DptoLSI-ETSI-MA2VICMR-1080engDocumento.pdf1556-6013bibliuned:DptoLSI-ETSI-MA2VICMRbibliuned:Setopenairebibliuned:Setarticulobibliuned:SetFundersGrupo de Procesamiento del Lenguaje Natural y Recuperación de Información. Proyecto MA2VICMR-CMSet de openaireSet de artículoSet de proyectos financiadoshttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsAraujoAcceso abierto0.94945134232013-06-01T00:00:00Z2582013-09-09T18:48:56Z2015-10-27T04:39:33ZEstratégias para detecção precoce de propensão à evasão = (Strategies for the early detection of evasion propensity)bibliuned:revistaRied-2013-16-2-6030A evasão é uma preocupação nos cursos tanto presenciais quanto de EAD e este trabalho apresenta os resultados de uma investigação sobre suas causas. Além da investigação a partir de referências de outros trabalhos sobre o mesmo tema, foi desenvo03852<a class="citation_author_name" title="Navegar por nombre de Autor de Mezzari, Adelina" href="/fez/list/author/Mezzari, Adelina/">Mezzari, Adelina</a> . (<span class="citation_date">2013</span>) <a class="citation_title" title="Click para ver : Estratégias para detecção precoce de propensão à evasão = (Strategies for the early detection of evasion propensity)" href="/fez/view/bibliuned:revistaRied-2013-16-2-6030">Estratégias para detecção precoce de propensão à evasão = (Strategies for the early detection of evasion propensity)</a>. RecordArtículo de revistaPublishedEducaciónAIESADMezzari, Adelinahttp://e-spacio.uned.es/fez/view/bibliuned:revistaRied-2013-16-2-6030bibliuned:revistaRied-2013-16-2-6030porDocumento.pdfbibliuned:revistaRied-2013-16-2bibliuned:Setopenairebibliuned:SetarticuloRIED: revista iberoamericana de educación a distancia. Año 2013, vol. 16, n. 2Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMezzariAcceso abierto10.5944/ried.16.2.99100.8578222434172022-01-01T00:00:00Z5202023-01-17T08:25:21Z2023-01-17T08:26:33ZLa investigación penal del detective y su valor probatorio (Resumen)tesisuned:ED-Pg-DeryCSoc-Llafont0Doctoral Thesis1612<a class="citation_author_name" title="Navegar por nombre de Autor de Lafont Nicuesa, Luis" href="/fez/list/author/Lafont Nicuesa, Luis/">Lafont Nicuesa, Luis</a>. <b><i><a class="citation_title" title="Click para ver : La investigación penal del detective y su valor probatorio (Resumen)" href="/fez/view/tesisuned:ED-Pg-DeryCSoc-Llafont">La investigación penal del detective y su valor probatorio (Resumen)</a></i></b> . <span class="citation_date">2022</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en Derecho y Ciencias Sociales</span>RecordDoctoral ThesisPublishedDerechoUniversidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en Derecho y Ciencias SocialesLafont Nicuesa, LuisCalaza López, SoniaMoran Martín, Remediostesisuned:ED-Pg-DeryCSoc-Llafonthttp://e-spacio.uned.es/fez/view/tesisuned:ED-Pg-DeryCSoc-LlafontspaLAFONT_NICUESA_Luis_Resumen.pdfpresmd_LAFONT_NICUESA_Luis_Resumen.xmltesisuned:ED_Pg_DeryCSocbibliuned:Setthesisbibliuned:SetopenaireEscuela de Doctorado. Programa de doctorado en Derecho y Ciencias Sociales (UNED)Set de Tesis Doctorales de la UNEDSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsLafont NicuesaAcceso cerrado0.8578222434172023-01-01T00:00:00Z32024-03-05T07:50:26Z2024-03-05T07:52:38ZFall detection system based on infrared imagestesisuned:ED-Pg-TecInd-Jgutierrez0Doctoral Thesis312<a class="citation_author_name" title="Navegar por nombre de Autor de Gutiérrez Gallego, Jesús" href="/fez/list/author/Gutiérrez Gallego, Jesús/">Gutiérrez Gallego, Jesús</a>. <b><i><a class="citation_title" title="Click para ver : Fall detection system based on infrared images" href="/fez/view/tesisuned:ED-Pg-TecInd-Jgutierrez">Fall detection system based on infrared images</a></i></b> . <span class="citation_date">2023</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en Tecnologías Industriales</span>RecordDoctoral ThesisPublishedIngeniería IndustrialUniversidad Nacional de Educación a Distancia (España). Escuela Internacional de Doctorado. Programa de Doctorado en Tecnologías IndustrialesGutiérrez Gallego, JesúsMartín Gutiérrez, SergioRodríguez Ontiveros, Víctor Hugo (Co-director)tesisuned:ED-Pg-TecInd-Jgutierrezhttp://e-spacio.uned.es/fez/view/tesisuned:ED-Pg-TecInd-JgutierrezengGUTIERREZ_GALLEGO_Jesus_Tesis.pdfpresmd_GUTIERREZ_GALLEGO_Jesus_Tesis.xmltesisuned:ED_Pg_TecIndbibliuned:Setthesisbibliuned:SetopenaireEscuela de Doctorado. Programa de doctorado en Tecnologías Industriales (UNED)Set de Tesis Doctorales de la UNEDSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsGutiérrez GallegoAcceso abierto0.8578222434232020-03-01T00:00:00Z62024-01-27T07:39:38Z2024-01-27T07:39:38ZDetecting Influencers in Social Media using information from their followersbibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0005Dada la tarea de encontrar influencers en un dominio dado (i.e. banking) en una red social, en este artículo investigamos (i) la importancia de caracterizar a los seguidores para la detección automática de influencers; (ii) la manera más efectiva de c0292<a class="citation_author_name" title="Navegar por nombre de Autor de Rodríguez-Vidal, Javier" href="/fez/list/author/Rodríguez-Vidal, Javier/">Rodríguez-Vidal, Javier</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Gonzalo, Julio" href="/fez/list/author/Gonzalo, Julio/">Gonzalo, Julio</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Plaza, Laura" href="/fez/list/author/Plaza, Laura/">Plaza, Laura</a> . (<span class="citation_date">2020</span>) <a class="citation_title" title="Click para ver : Detecting Influencers in Social Media using information from their followers" href="/fez/view/bibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0005">Detecting Influencers in Social Media using information from their followers</a>. RecordArtículo de revistaPublishedInformáticaEste es el manuscrito aceptado del artículo publicado por Sociedad Española para el Procesamiento del Lenguaje Natural en "Procesamiento del Lenguaje Natural. 2020, 64: 21-28", disponible en línea: https://doi.org/10.26342/2020-64-2Sociedad Española para el Procesamiento del Lenguaje NaturalRodríguez-Vidal, JavierGonzalo, JulioPlaza, LauraProcesamiento del Lenguaje Naturalbibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0005212864engDetectando Influencers en Medios Sociales utilizando la información de sus seguidoresRodriguez_Vidal_Javier_Detecting_Influencers.pdfpresmd_Rodriguez_Vidal_Javier_Detecting_Influencers.xml1135-5948bibliuned:DptoLSI-ETSI-GPLNyRIbibliuned:Setarticulobibliuned:SetopenaireGrupo de Procesamiento del Lenguaje Natural y Recuperación de InformaciónSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRodríguez-VidalAcceso abiertohttps://doi.org/10.26342/2020-64-20.8353751334532019-01-01T00:00:00Z02024-01-27T09:25:51Z2024-01-30T06:21:41ZOntologies for early detection of the Alzheimer Disease and other Neurodegenerative Diseasesbibliuned:92-Libros-Rmartinez-00010bookChapter352<a class="citation_author_name" title="Navegar por nombre de Autor de Gómez-Valadés, Alba" href="/fez/list/author/Gómez-Valadés, Alba/">Gómez-Valadés, Alba</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Martínez Tomás, Rafael" href="/fez/list/author/Martínez Tomás, Rafael/">Martínez Tomás, Rafael</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Rincón Zamorano, Mariano" href="/fez/list/author/Rincón Zamorano, Mariano/">Rincón Zamorano, Mariano</a> (<span class="citation_date">2019</span>). <a class="citation_title" title="Click para ver : Ontologies for early detection of the Alzheimer Disease and other Neurodegenerative Diseases" href="/fez/view/bibliuned:92-Libros-Rmartinez-0001">Ontologies for early detection of the Alzheimer Disease and other Neurodegenerative Diseases</a>. En <a class="citation_title" title="Click para ver : Ontologies for early detection of the Alzheimer Disease and other Neurodegenerative Diseases" href="/fez/view/bibliuned:92-Libros-Rmartinez-0001">Ontologies for early detection of the Alzheimer Disease and other Neurodegenerative Diseases</a> (pp. -) <span class="citation_publisher">Springer</span>.RecordCapítulo de libroPublishedIngeniería InformáticaChapter of the book: José Manuel Ferrández Vicente, José Ramón Álvarez-Sánchez, Félix de la Paz López, Javier Toledo Moreo, Hojjat Adeli (Eds.), Understanding the Brain Functions and Emotions. Part I, LNCS 11486, Springer, pp. 42-50, 2019. DOI: https://doi.org/10.1007/978-3-030-19591-5_5 Part of the Lecture Notes in Computer Science book series (LNTCS,volume 11486)SpringerGómez-Valadés, AlbaMartínez Tomás, RafaelRincón Zamorano, MarianoFerrández Vicente, José Manuel (ed.)Álvarez-Sánchez, José Ramón (ed.)Paz López, Félix de la (ed.)Toledo Moreo, Javier (ed.)Adeli, Hojjat (ed.)bibliuned:92-Libros-Rmartinez-0001http://e-spacio.uned.es/fez/view/bibliuned:92-Libros-Rmartinez-0001engOntologies...2019.pdfpresmd_Ontologies...2019.xml978-3-030-19591-5bibliuned:92-Librosbibliuned:SetopenaireDepartamento de Inteligencia Artificial (UNED). LibrosSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/deed.esLicencia Creative CommonsGómez-ValadésAbierto0.835375133313102024-01-19T14:15:37Z2024-02-03T07:37:35ZDetection of Cerebral Ischaemia using Transfer Learning Techniquesbibliuned:DptoSCC-ETSI-Ponencias-AroblesCerebrovascular accident (CVA) or stroke is one of the main causes of mortality and morbidity today, causing permanent disabilities. Its early detection helps reduce its effects and its mortality: time is brain. Currently, non-contrast computed tomography (NCCT) continues to be the first-line diagnostic method in stroke emergencies because it is a fast, available, and cost-effective technique that makes it possible to rule out haemorrhage and focus attention on the ischemic origin, that is, due to obstruction to arterial flow. NCCT are quantified using a scoring system called ASPECTS (Alberta Stroke Program Early Computed Tomography Score) according to the affected brain structures. This paper aims to detect in an initial phase those CTs of patients with stroke symptoms that present early alterations in CT density using a binary classifier of CTs without and with stroke, to alert the doctor of their existence. For this, several well-known neural network architectures are implemented in the ImageNet challenges (VGG, NasNet, ResNet and DenseNet), with 3D images, covering the entire brain volume. The training results of these networks are exposed, in which different parameters are tested to obtain maximum performance, which is achieved with a DenseNet3D network that achieves an accuracy of 98% in the training set and 95% in the test set0ponencia congreso1162<a class="citation_author_name" title="Navegar por nombre de Autor de Antón-Munárriz, Cristina" href="/fez/list/author/Antón-Munárriz, Cristina/">Antón-Munárriz, Cristina</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Pastor-Vargas, Rafael" href="/fez/list/author/Pastor-Vargas, Rafael/">Pastor-Vargas, Rafael</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Haut, Juan M." href="/fez/list/author/Haut, Juan M./">Haut, Juan M.</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Robles-Gómez, Antonio" href="/fez/list/author/Robles-Gómez, Antonio/">Robles-Gómez, Antonio</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Paoletti, Mercedes E." href="/fez/list/author/Paoletti, Mercedes E./">Paoletti, Mercedes E.</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Benítez-Andrades, José A." href="/fez/list/author/Benítez-Andrades, José A./">Benítez-Andrades, José A.</a>() .<a class="citation_title" title="Click para ver : Detection of Cerebral Ischaemia using Transfer Learning Techniques" href="/fez/view/bibliuned:DptoSCC-ETSI-Ponencias-Arobles">Detection of Cerebral Ischaemia using Transfer Learning Techniques</a>. <b></b>.En: <span class="citation_conference_location">L'Aquila, Italy</span>. ()RecordPonencia de CongresoPublishedIngeniería InformáticaIEEEAntón-Munárriz, CristinaPastor-Vargas, RafaelHaut, Juan M.Robles-Gómez, AntonioPaoletti, Mercedes E.Benítez-Andrades, José A.bibliuned:DptoSCC-ETSI-Ponencias-Arobleshttp://e-spacio.uned.es/fez/view/bibliuned:DptoSCC-ETSI-Ponencias-Arobleshttps://doi.org/10.1109/CBMS58004.2023.00284L'Aquila, ItalyengRobles_Gomez_Antonio-Detection-of-cerebral-ischeamia.pdfpresmd_Robles_Gomez_Antonio-Detection-of-cerebral-ischeamia.xmlbibliuned:DptoSCC-ETSI-Ponenciasbibliuned:SetPonenciasbibliuned:SetopenaireDepartamento de Sistemas de Comunicación y Control. E.T.S.I. Informática (UNED). PonenciasSet de ponenciasSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsAntón-MunárrizAcceso embargado0.8258018534232018-01-01T00:00:00Z92024-01-25T06:37:31Z2024-01-25T06:37:31ZSelf-Propelled Micromotors for Naked-Eye Detection of Phenylenediamines Isomersbibliuned:DptoCA-FCIE-Articulos-Rmaria-0006Tubular micromotors composed of a hybrid single-wall carbon nanotube (SW)−Fe2O3 outer layer and powered by a MnO2 catalyst are used for phenylenediamines isomers detection and discrimination. Catalytic decomposition of H2O2 as fuel results in the production of oxygen bubbles and hydroxyl radicals for phenylenediamines dimerization to produce colorful solutions in colorimetric assays. The combination of Fe2O3 nanoparticles along with the irregular SW backbone results in a rough catalytic layer for enhanced hydroxyl radical production rate and improved analytical sensitivity. Such self-propelled micromotors act as peroxidase-like mobile platforms that offer efficient phenylenediamines detection and discrimination in just 15 min. Factors influencing the colorimetric assay protocol, such as the navigation time and number of motors, have been investigated. Low limits of detection (5 and 6 μM) and quantification (17 and 20 μM) were obtained for o-phenylenediamine and p- phenylenediamine, respectively. The magnetic properties of the outer SW−Fe2O3 hybrid layer allow the reusability of the micromotors in the colorimetric assay. Such attractive performance holds considerable promise for its application in sensing systems in a myriad of environmental, industrial, and health applications.0352<a class="citation_author_name" title="Navegar por nombre de Autor de María-Hormigos, Roberto" href="/fez/list/author/María-Hormigos, Roberto/">María-Hormigos, Roberto</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Jurado-Sańchez, Beatriz" href="/fez/list/author/Jurado-Sańchez, Beatriz/">Jurado-Sańchez, Beatriz</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Escarpa, Alberto" href="/fez/list/author/Escarpa, Alberto/">Escarpa, Alberto</a> . (<span class="citation_date">2018</span>) <a class="citation_title" title="Click para ver : Self-Propelled Micromotors for Naked-Eye Detection of Phenylenediamines Isomers" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Rmaria-0006">Self-Propelled Micromotors for Naked-Eye Detection of Phenylenediamines Isomers</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Analytical Chemistry, está disponible en línea en el sitio web del editor: ACS Publications, https://doi.org/10.1021/acs.analchem.8b01860ACS PublicationsMaría-Hormigos, RobertoJurado-Sańchez, BeatrizEscarpa, AlbertoAnalytical Chemistrybibliuned:DptoCA-FCIE-Articulos-Rmaria-0006http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Rmaria-0006983098371690engMaria_Hormigos_Roberto_Micromotors.pdfpresmd_Maria_Hormigos_Roberto_Micromotors.xml1520-6882, 0003-2700bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMaría-HormigosAcceso abiertohttps://doi.org/10.1021/acs.analchem.8b018600.775739234232024-03-07T00:00:00Z22024-03-22T04:31:04Z2024-03-22T04:33:46ZDetecting ultraviolet C radiation under polyethylene terephthalate (PET) packaging by thermoluminescence analysis using commercial dosimetersbibliuned:DptoCA-FCIE-Articulos-Jcbravo-0005Food irradiation is a proven technology that enhances food quality and safety by removing microorganisms and extending shelf life. Ultraviolet C radiation (UVC) has recently attracted interest due to its potential to inactivate foodborne pathogens. It relies on several advantages; however, there is limited research on its efficacy and safety particularly concerning food packaging materials such as polyethylene terephthalate (PET). This study reports on the effect of UVC radiation on commercial thermoluminescence dosimeters (namely, TLD-100, TLD-200, TLD-400 and GR-200) placed under PET films with different thicknesses (0.10, 0.42, and 0.60 mm). The results indicate the potential use of these materials for the detection of UVC radiation passing through the randomly selected PET samples. Fourier transform infrared spectroscopy assesses potential structural and chemical alterations in the PET induced by UVC exposure.0182<a class="citation_author_name" title="Navegar por nombre de Autor de Boronat, C." href="/fez/list/author/Boronat, C./">Boronat, C.</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Correcher, V." href="/fez/list/author/Correcher, V./">Correcher, V.</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Bravo Yagüe, Juan Carlos" href="/fez/list/author/Bravo Yagüe, Juan Carlos/">Bravo Yagüe, Juan Carlos</a> . (<span class="citation_date">2024</span>) <a class="citation_title" title="Click para ver : Detecting ultraviolet C radiation under polyethylene terephthalate (PET) packaging by thermoluminescence analysis using commercial dosimeters" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Jcbravo-0005">Detecting ultraviolet C radiation under polyethylene terephthalate (PET) packaging by thermoluminescence analysis using commercial dosimeters</a>. RecordArtículo de revistaPublishedCienciasThe registered version of this article, first published in Food Packaging and Shelf Life, (2024) 42 101263 is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.fpsl.2024.101263ElsevierBoronat, C.Correcher, V.Bravo Yagüe, Juan Carlos1Food Packaging and Shelf Lifebibliuned:DptoCA-FCIE-Articulos-Jcbravo-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-000542engBravo_Yague_Juan_Carlos_Detecting_ultraviolet.pdfpresmd_Bravo_Yague_Juan_Carlos_Detecting_ultraviolet.xml2214-2894bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0/License Creative CommonsBoronatAcceso abiertohttps://doi.org/10.1016/j.fpsl.2024.1012630.775739234232011-05-01T00:00:00Z5892014-03-28T14:19:27Z2016-02-06T01:47:21ZUn dispositivo para detectar y priorizar necesidades de intervención de orientación educativa en la ESO = A device to detect and prioritise educational guidance demands in ESO (Compulsory Secondary Education)bibliuned:revistaREOP-2011-22-2-9020El presente artículo se propone presentar, mediante el análisis de un caso práctico, un dispositivo para la detección y ordenación de líneas de intervención en el campo de la orientación educativa en la enseñanza secundaria obligatoria; concretam06652<a class="citation_author_name" title="Navegar por nombre de Autor de Monarca, Héctor" href="/fez/list/author/Monarca, Héctor/">Monarca, Héctor</a> . (<span class="citation_date">2011</span>) <a class="citation_title" title="Click para ver : Un dispositivo para detectar y priorizar necesidades de intervención de orientación educativa en la ESO = A device to detect and prioritise educational guidance demands in ESO (Compulsory Secondary Education)" href="/fez/view/bibliuned:revistaREOP-2011-22-2-9020">Un dispositivo para detectar y priorizar necesidades de intervención de orientación educativa en la ESO = A device to detect and prioritise educational guidance demands in ESO (Compulsory Secondary Education)</a>. RecordArtículo de revistaPublishedEducaciónAEOP ; Universidad Nacional de Educación a Distancia (España)Monarca, Héctorhttp://e-spacio.uned.es/fez/view/bibliuned:revistaREOP-2011-22-2-9020bibliuned:revistaREOP-2011-22-2-9020esDocumento.pdfbibliuned:revistaREOP-2011-22-2bibliuned:Setopenairebibliuned:SetarticuloRevista Española de Orientación y Psicopedagogía. Año 2011, vol. 22, n.2Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMonarcaAcceso abierto10.5944/reop.vol.22.num.2.2011.650.769459434232014-01-01T00:00:00Z6592014-01-10T23:19:27ZEl caso del reactivo precipitado por la hemoglobina: la novela policiaca y sus (des)encuentros con la ciencia = The re-agent precipitated by haemoglobin affair: the detective novel and its encounters with sciencebibliuned:signa-2014-23-70600Doctoral Thesis4132<a class="citation_author_name" title="Browse by Author Name for González de la Aleja Barberán, Manuel" href="/fez37/public/list/author/González de la Aleja Barberán, Manuel/">González de la Aleja Barberán, Manuel</a> . (<span class="citation_date">2014</span>) <a class="citation_title" title="Click to view : El caso del reactivo precipitado por la hemoglobina: la novela policiaca y sus (des)encuentros con la ciencia = The re-agent precipitated by haemoglobin affair: the detective novel and its encounters with science" href="/fez37/public/view/bibliuned:signa-2014-23-7060">El caso del reactivo precipitado por la hemoglobina: la novela policiaca y sus (des)encuentros con la ciencia = The re-agent precipitated by haemoglobin affair: the detective novel and its encounters with science</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/067278FilologíaUniversidad Nacional de Educación a Distancia (España). Instituto de Semiótica Literaria y TeatralGonzález de la Aleja Barberán, Manuelhttp://e-spacio.uned.es/fez/view.php?pid= bibliuned:signa-2014-23-7060bibliuned:signa-2014-23-7060esDocumento.pdfbibliuned:signa-2014-23bibliuned:Setopenairebibliuned:SetarticuloSigna: revista de la Asociación Española de Semiótica. Año 2014, n. 23Set de openaireSet de artículoGonzález de la Aleja BarberánAcceso abierto0.769459431982020-09-28T00:00:00Z1932021-09-23T19:09:04Z2021-09-23T19:09:04ZDetecting overfitting in GANs with a metric based on the Fourier spectrumbibliuned:master-ETSInformatica-IAA-AjgamazoRecent progress in generative image modeling is leading to a new era of highresolution fakes visually indistinguishable from real life images. However, the development of metrics capable of discerning whether images are synthetic or not runs behind the race of achieving the best generator, thus bringing potential threats. We propose a rotation invariant metric capable of distinguishing real and generated images and prove its performance and correlation with subjective evaluation on a brain MRI dataset to generate synthetic white matter lesion images. We name this metric CSD (Circular Spectrum Distance) due to its circular nature and its inherent relation to the Fourier Spectrum. We find that this metric, as opposed to Frechet Inception Distance or Inception Score, detects overfitting during training in terms of generator memorisation without making use of any pretrained network. The conclusions are generalized to CelebA-HQ as a benchmark dataset.0Doctoral Thesis2812<a class="citation_author_name" title="Navegar por nombre de Autor de Gamazo Tejero, Ángel Javier" href="/fez/list/author/Gamazo Tejero, Ángel Javier/">Gamazo Tejero, Ángel Javier</a>. (<span class="citation_date">2020</span>). <i><a class="citation_title" title="Click para ver : Detecting overfitting in GANs with a metric based on the Fourier spectrum" href="/fez/view/bibliuned:master-ETSInformatica-IAA-Ajgamazo">Detecting overfitting in GANs with a metric based on the Fourier spectrum</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia ArtificialGamazo Tejero, Ángel JavierRincón Zamorano, MarianoCuadra Troncoso, José Manuelbibliuned:master-ETSInformatica-IAA-Ajgamazohttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IAA-AjgamazoengGamazo_Tejero_Angel_Javier_TFM.pdfpresmd_Gamazo_Tejero_Angel_Javier_TFM.xmlbibliuned:master-ETSInformatica-IAAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en I.A. Avanzada: Fundamentos, Métodos y Aplicaciones (UNED)Set de items trabajo fin de másterSet de openaireGamazo TejeroAcceso abierto0.763115334232019-01-07T00:00:00Z52024-01-27T05:45:49Z2024-01-27T05:48:35ZAutomatic Detection of Influencers in Social Networks: Authority versus Domain signalsbibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0001Given the task of finding influencers (opinion makers) for a given domain in a social network, we investigate (a) what is the relative importance of domain and authority signals, (b) what is the most effective way of combining signals (voting, classification, learning to rank, etc.) and how best to model the vocabulary signal, and (c) how large is the gap between supervised and unsupervised methods and what are the practical consequences. Our best results on the RepLab dataset (which improves the state of the art) uses language models to learn the domain-specific vocabulary used by influencers and combines domain and authority models using a Learning to Rank algorithm. Our experiments show that (a) both authority and domain evidence can be trained from the vocabulary of influencers; (b) once the language of influencers is modeled as a likelihood signal, further supervised learning and additional network-based signals only provide marginal improvements; and (c) the availability of training data sets is crucial to obtain competitive results in the task. Our most remarkable finding is that influencers do use a distinctive vocabulary, which is a more reliable signal than nontextual network indicators such as the number of followers, retweets, and so on.0312<a class="citation_author_name" title="Navegar por nombre de Autor de Rodríguez-Vidal, Javier" href="/fez/list/author/Rodríguez-Vidal, Javier/">Rodríguez-Vidal, Javier</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Gonzalo, Julio" href="/fez/list/author/Gonzalo, Julio/">Gonzalo, Julio</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Plaza, Laura" href="/fez/list/author/Plaza, Laura/">Plaza, Laura</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Anaya Sánchez, Henry" href="/fez/list/author/Anaya Sánchez, Henry/">Anaya Sánchez, Henry</a> . (<span class="citation_date">2019</span>) <a class="citation_title" title="Click para ver : Automatic Detection of Influencers in Social Networks: Authority versus Domain signals" href="/fez/view/bibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0001">Automatic Detection of Influencers in Social Networks: Authority versus Domain signals</a>. RecordArtículo de revistaPublishedInformáticaEste es el manuscrito aceptado del artículo publicado por Wiley en "Journal of the Association for Information Science and Technology Vol 70 (7), p. 675-684", disponible en línea: https://doi.org/10.1002/asi.24156WileyRodríguez-Vidal, JavierGonzalo, JulioPlaza, LauraAnaya Sánchez, HenryJournal of the Association for Information Science and Technologybibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0001http://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-GPLNyRI-Jrodriguez-0001675684770engRodriguez_Vidal_Javier_Automatic_Detection_In.pdfpresmd_Rodriguez_Vidal_Javier_Automatic_Detection_In.xml2330-1643, 2330-1635bibliuned:DptoLSI-ETSI-GPLNyRIbibliuned:Setarticulobibliuned:SetopenaireGrupo de Procesamiento del Lenguaje Natural y Recuperación de InformaciónSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRodríguez-VidalAcceso abiertohttps://doi.org/10.1002/asi.241560.7212992331982021-09-19T00:00:00Z1972022-10-01T05:46:04Z2022-10-01T05:46:04ZLane Detection based on Multiple Frames Informationbibliuned:master-ETSInformatica-IAA-DturradoOne of the fundamental challenges in the field of autonomous driving is the ability to detect dynamic objects, such as vehicles or pedestrians, and statics ones, such as lanes, in the surroundings of the vehicle. The accurate perception of the environment is crucial for a safe decision making and motion planning. In recent years, advanced driver-assistance systems (ADAS) are getting more important, incorporating new features that a few years ago were limited to luxury cars or even not technically possible. In particular, one of this features is the lane keeping assist system which keeps the car centered in the lane. This system is not just a relevant part of actual driving support features, but it is a crucial function of future fully autonomous vehicles (AD). A few years ago, many of these systems relied on traditional computer vision algorithms, based on computational expensive manually calibrated methods. Their lack of robustness under the long tale of driving scenarios makes them not very suitable for scalability. Moreover the limited computational resources of embedded system puts additional requirements on the design of real time capable algorithms. Nowadays, the state-of-the-art object and structure detectors for advanced driverassistance systems are based on machine learning and, in particular, deep learning approaches. However, such approaches still mainly function on single-frame basis and do not exploit the (high) temporal correlation of the signals representing the perceived environment. Single-frame detection networks might work well under circumstances where the lanes are perfectly visible, but show a lack of performance under certain situations, like occlusions, shadows, rain, snow, lane degradation, etc. To address the aforementioned problem, this thesis introduces temporal information for lane binary segmentation, applying convolutional long short-term memory (ConvLSTM) and convolutional neural networks (CNN) to improve substantially the performance of single-frame architecture under challenging and adverse situations.0Doctoral Thesis1962<a class="citation_author_name" title="Navegar por nombre de Autor de Turrado Blanco, Diego" href="/fez/list/author/Turrado Blanco, Diego/">Turrado Blanco, Diego</a>. (<span class="citation_date">2021</span>). <i><a class="citation_title" title="Click para ver : Lane Detection based on Multiple Frames Information" href="/fez/view/bibliuned:master-ETSInformatica-IAA-Dturrado">Lane Detection based on Multiple Frames Information</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia ArtificialTurrado Blanco, DiegoKoloda, JánRincón Zamorano, Marianobibliuned:master-ETSInformatica-IAA-Dturradohttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IAA-DturradoengTurrado_Blanco_Diego_TFM.pdfpresmd_Turrado_Blanco_Diego_TFM.xmlbibliuned:master-ETSInformatica-IAAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en I.A. Avanzada: Fundamentos, Métodos y Aplicaciones (UNED)Set de items trabajo fin de másterSet de openaireTurrado BlancoAcceso abierto0.7212992333132017-01-01T00:00:00Z1552017-10-10T23:03:13Z2019-01-10T18:15:37ZAutomatic enjambment detection as a new source of evidence in Spanish versificationbibliuned:363-Cmartinez2We present software to automatically identify enjambment (and its type) in Spanish. Traditionally, enjambment is described as a device whereby no syntactic pause occurs at the end of a poetry line, splitting a phrase across two lines. Most definitions highlight the conflict between syntactic and metrical units, yielding stylistic effects like double interpretations. In Spanish versification, Quilis (1964) performed poetry reading experiments, characterizing enjambment as happening only when very cohesive syntactic units, which it would be unnatural to interrupt, are split across lines. Spang (1983) noted that splitting verbs and their subject or object across two lines also triggers (softer) enjambment-like effects. These characterizations are still considered current, but some points in them are debated. To systematically gather evidence on enjambment, we created a Natural Language Processing-based system that automatically detects and types enjambments as characterized above. For evaluation, we manually annotated a reference corpus. We consider system results satisfactory; F1 varied depending on enjambment type and poems’ period. A system and corpus description, and evaluation are at: https://sites.google.com/site/spanishenjambment/ We are not aware of large-sample enjambment studies across periods, literary movements, or versification types in Spanish, or other languages. Automatic detection can provide quantitative evidence for questions in verse theory, e.g.: To what an extent is enjambment used differently in free verse vs. traditional versification? Applying the system to 3750 sonnets covering four centuries is shedding light on unclear points in the definition of enjambment. The system finds line-pairs formally fitting the description of enjambment, but that, upon human validation, we’d consider borderline cases, given other stylistic factors, e.g. hyperbaton. Conversely, our annotators are sometimes surprised that certain line-pairs are not considered enjambed in the typology. Automatic identification of many examples, plus expert validation, is helping towards a more nuanced redefinition of enjambment.0ponencia congreso9612<a class="citation_author_name" title="Navegar por nombre de Autor de Martínez Cantón, Clara Isabel" href="/fez/list/author/Martínez Cantón, Clara Isabel/">Martínez Cantón, Clara Isabel</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Ruiz Fabo, Pablo" href="/fez/list/author/Ruiz Fabo, Pablo/">Ruiz Fabo, Pablo</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de González-Blanco García, Elena" href="/fez/list/author/González-Blanco García, Elena/">González-Blanco García, Elena</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Poibeau, Thierry" href="/fez/list/author/Poibeau, Thierry/">Poibeau, Thierry</a>(<span class="citation_date">2017</span>) .<a class="citation_title" title="Click para ver : Automatic enjambment detection as a new source of evidence in Spanish versification" href="/fez/view/bibliuned:363-Cmartinez2">Automatic enjambment detection as a new source of evidence in Spanish versification</a>. <b></b>.En: <span class="citation_conference_location">Basel (Switzerland)</span>. ()RecordPonencia de CongresoPublishedLiteraturaMartínez Cantón, Clara IsabelRuiz Fabo, PabloGonzález-Blanco García, ElenaPoibeau, Thierrybibliuned:363-Cmartinez2http://e-spacio.uned.es/fez/view/bibliuned:363-Cmartinez2Basel (Switzerland)engClara_Martinez_Canton_plotting_pres.pdfpresmd_Clara_Martinez_Canton_plotting_pres.xmlbibliuned:363bibliuned:SetPonenciasbibliuned:SetopenaireDepartamento de Literatura Española (UNED). PonenciasSet de ponenciasSet de openairehttp://creativecommons.org/licences/by-nc-nd/4.0Licencia Creative CommonsMartínez CantónAcceso abierto0.7212992334232021-12-15T00:00:00Z72024-03-01T09:53:58Z2024-03-05T03:20:25ZEnhancing topic-detection in computerized assessments of constructed responses with distributional models of languagebibliuned:DptoMCC-FPSI-Articulos-Jamartinez-0017Usually, computerized assessments of constructed responses use a predictive-centered approach instead of a validity-centered one. Here, we compared the convergent and discriminant validity of two computerized assessment methods designed to detect semantic topics in constructed responses: Inbuilt Rubric (IR) and Partial Contents Similarity (PCS). While both methods are distributional models of language and use the same Latent Semantic Analysis (LSA) prior knowledge, they produce different semantic representations. PCS evaluates constructed responses using non-meaningful semantic dimensions (this method is the standard LSA assessment of constructed responses), but IR endows original LSA semantic space coordinates with meaning. In the present study, 255 undergraduate and high school students were allocated one of three texts and were tasked to make a summary. A topic- detection task was conducted comparing IR and PCS methods. Evidence from convergent and discriminant validity was found in favor of the IR method for topic-detection in computerized constructed response assessments. In this line, the multicollinearity of PCS method was larger than the one of IR method, which means that the former is less capable of discriminating between related concepts or meanings. Moreover, the semantic representations of both methods were qualitatively different, that is, they evaluated different concepts or meanings. The implications of these automated assessment methods are also discussed. First, the meaningful coordinates of the Inbuilt Rubric method can accommodate expert rubrics for computerized assessments of constructed responses improving computer-assisted language learning. Second, they can provide high-quality computerized feedback accurately detecting topics in other educational constructed response assessments. Thus, it is concluded that: (1) IR method can represent different concepts and contents of a text, simultaneously mapping a considerable variability of contents in constructed responses; (2) IR method semantic representations have a qualitatively different meaning than the LSA ones and present a desirable multicollinearity that promotes the discriminant validity of the scores of distributional models of language; and (3) IR method can extend the performance and the applications of current LSA semantic representations by endowing the dimensions of the semantic space with semantic meanings.0362<a class="citation_author_name" title="Navegar por nombre de Autor de Martínez-Huertas, José Ángel" href="/fez/list/author/Martínez-Huertas, José Ángel/">Martínez-Huertas, José Ángel</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Olmos, Ricardo" href="/fez/list/author/Olmos, Ricardo/">Olmos, Ricardo</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de León, José A." href="/fez/list/author/León, José A./">León, José A.</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Enhancing topic-detection in computerized assessments of constructed responses with distributional models of language" href="/fez/view/bibliuned:DptoMCC-FPSI-Articulos-Jamartinez-0017">Enhancing topic-detection in computerized assessments of constructed responses with distributional models of language</a>. RecordArtículo de revistaPublishedPsicologíaThe copyrighted version of this article, first published in Expert Systems with Applications (2021) 185, is available online at the publisher's website: Elsevier; https://doi.org/10.1016/j.eswa.2021.115621ElsevierMartínez-Huertas, José ÁngelOlmos, RicardoLeón, José A.1Expert Systems with Applicationsbibliuned:DptoMCC-FPSI-Articulos-Jamartinez-0017http://e-spacio.uned.es/fez/view/bibliuned:DptoMCC-FPSI-Articulos-Jamartinez-0017185engMartinez-Huertas_JA_Enhancingto.pdfpresmd_Martinez-Huertas_JA_Enhancingto.xml0957-4174bibliuned:DptoMCC-FPSI-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Metodología de las Ciencias del Comportamiento (UNED). ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/es/License Creative CommonsMartínez-HuertasAcceso abiertohttps://doi.org/10.1016/j.eswa.2021.1156210.6908254634232023-02-01T00:00:00Z42024-03-23T06:12:47Z2024-03-23T06:37:37ZNegation-based transfer learning for improving biomedical Named Entity Recognition and Relation Extractionbibliuned:DptoLSI-ETSI-Articulos-Aduque-0001Background and Objectives: Named Entity Recognition (NER) and Relation Extraction (RE) are two of the most studied tasks in biomedical Natural Language Processing (NLP). The detection of specific terms and entities and the relationships between them are key aspects for the development of more complex automatic systems in the biomedical field. In this work, we explore transfer learning techniques for incorporating information about negation into systems performing NER and RE. The main purpose of this research is to analyse to what extent the successful detection of negated entities in separate tasks helps in the detection of biomedical entities and their relationships. Methods: Three neural architectures are proposed in this work, all of them mainly based on Bidirectional Long Short-Term Memory (Bi-LSTM) networks and Conditional Random Fields (CRFs). While the first architecture is devoted to detecting triggers and scopes of negated entities in any domain, two specific models are developed for performing isolated NER tasks and joint NER and RE tasks in the biomedical domain. Then, weights related to negation detection learned by the first architecture are incorporated into those last models. Two different languages, Spanish and English, are taken into account in the experiments. Results: Performance of the biomedical models is analysed both when the weights of the neural networks are randomly initialized, and when weights from the negation detection model are incorporated into them. Improvements of around 3.5% of F-Measure in the English language and more than 7% in the Spanish language are achieved in the NER task, while the NER+RE task increases F-Measure scores by more than 13% for the NER submodel and around 2% for the RE submodel. Conclusions: The obtained results allow us to conclude that negation-based transfer learning techniques are appropriate for performing biomedical NER and RE tasks. These results highlight the importance of detecting negation for improving the identification of biomedical entities and their relationships. The explored echniques show robustness by maintaining consistent results and improvements across different tasks and languages.0252<a class="citation_author_name" title="Navegar por nombre de Autor de Fabregat, Hermenegildo" href="/fez/list/author/Fabregat, Hermenegildo/">Fabregat, Hermenegildo</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Duque, Andrés" href="/fez/list/author/Duque, Andrés/">Duque, Andrés</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Martinez-Romo, Juan" href="/fez/list/author/Martinez-Romo, Juan/">Martinez-Romo, Juan</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Araujo, Lourdes" href="/fez/list/author/Araujo, Lourdes/">Araujo, Lourdes</a> . (<span class="citation_date">2023</span>) <a class="citation_title" title="Click para ver : Negation-based transfer learning for improving biomedical Named Entity Recognition and Relation Extraction" href="/fez/view/bibliuned:DptoLSI-ETSI-Articulos-Aduque-0001">Negation-based transfer learning for improving biomedical Named Entity Recognition and Relation Extraction</a>. RecordArtículo de revistaPublishedBiomedicinaIngeniería InformáticaThe registered version of this article, first published in the Journal of Biomedical Informatics (2023) 138 104279, is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.jbi.2022.104279ElsevierFabregat, HermenegildoDuque, AndrésMartinez-Romo, JuanAraujo, LourdesJournal of Biomedical Informaticsbibliuned:DptoLSI-ETSI-Articulos-Aduque-0001http://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-Articulos-Aduque-0001138engDuque_Fernandez_Andres_Negation.pdfpresmd_Duque_Fernandez_Andres_Negation.xml1532-0464bibliuned:DptoLSI-ETSI-Articulosbibliuned:SetopenaireDepartamento de Lenguajes y Sistemas Informáticos. E.T.S.I Informática (UNED). ArtículosSet de openairehttps://creativecommons.org/licenses/by-nc-nd/3.0/en/License Creative CommonsFabregatAcceso abiertohttps://doi.org/10.1016/j.jbi.2022.1042790.6908254634232013-05-28T00:00:00Z1992014-10-30T23:19:27Z2015-02-10T04:14:23ZWHAD : Wikipedia historical attributes data. Historical structured data extraction and vandalism detection from the Wikipedia edit historybibliuned:DptoLSI-ETSI-MA2VICMR-1000This paper describes the generation of temporally anchored infobox attribute data from the Wikipedia history of revisions. By mining (attribute, value) pairs from the revision history of the English Wikipedia we are able to collect a comprehensive know05012<a class="citation_author_name" title="Browse by Author Name for Alfonseca, Enrique" href="/fez/list/author/Alfonseca, Enrique/">Alfonseca, Enrique</a>, <a class="citation_author_name" title="Browse by Author Name for Garrido, Guillermo" href="/fez/list/author/Garrido, Guillermo/">Garrido, Guillermo</a>, <a class="citation_author_name" title="Browse by Author Name for Delort, Jean-Yves" href="/fez/list/author/Delort, Jean-Yves/">Delort, Jean-Yves</a> and <a class="citation_author_name" title="Browse by Author Name for Peñas, Anselmo" href="/fez/list/author/Peñas, Anselmo/">Peñas, Anselmo</a> . (<span class="citation_date">2013</span>) <a class="citation_title" title="Click para ver : WHAD : Wikipedia historical attributes data. Historical structured data extraction and vandalism detection from the Wikipedia edit history" href="/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1000">WHAD : Wikipedia historical attributes data. Historical structured data extraction and vandalism detection from the Wikipedia edit history</a>. RecordArtículo de revistaPublishedInformáticaSpringer Verlag (Germany)Alfonseca, EnriqueGarrido, GuillermoDelort, Jean-YvesPeñas, Anselmohttp://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-MA2VICMR-1000bibliuned:DptoLSI-ETSI-MA2VICMR-1000engDocumento.pdf1574-020X (print version) ISSN: 1574-0218 (electronic version)bibliuned:DptoLSI-ETSI-MA2VICMRbibliuned:Setopenairebibliuned:Setarticulobibliuned:SetFundersGrupo de Procesamiento del Lenguaje Natural y Recuperación de Información. Proyecto MA2VICMR-CMSet de openaireSet de artículoSet de proyectos financiadoshttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsAlfonsecaAcceso abierto0.681096633132017-01-01T00:00:00Z1022018-01-22T21:19:44Z2019-01-10T18:29:50ZDistant Rhythm: Automatic Enjambment Detection on Four Centuries of Spanish Sonnetsbibliuned:363-Pruiz1Enjambment takes place when a syntactic unit is broken up across two lines of poetry, giving rise to different stylistic effects. In Spanish literary studies, detailed case-studies of the phenomenon based on single authors exist. However, a larger-scale study spanning hundreds of major and minor authors, across several centuries, is not available so far. Towards that need, we have developed software based on Natural Language Processing (NLP), to automatically identify enjambment (and its type) in Spanish. To evaluate the system, we manually annotated two reference corpora (one diachronic, one from the 20th century). Results are satisfactory for the system's first version, with F1 varying depending on period and enjambment type. As a scholarly corpus to apply the tool, from public HTML sources we created a diachronic corpus covering four centuries of sonnets (3750 poems). We applied the tool to analyze the occurrence of enjambment across stanzaic boundaries in different periods.0ponencia congreso6162<a class="citation_author_name" title="Navegar por nombre de Autor de Ruiz Fabo, Pablo" href="/fez/list/author/Ruiz Fabo, Pablo/">Ruiz Fabo, Pablo</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Martínez Cantón, Clara Isabel" href="/fez/list/author/Martínez Cantón, Clara Isabel/">Martínez Cantón, Clara Isabel</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Poibeau, Thierry" href="/fez/list/author/Poibeau, Thierry/">Poibeau, Thierry</a>(<span class="citation_date">2017</span>) .<a class="citation_title" title="Click para ver : Distant Rhythm: Automatic Enjambment Detection on Four Centuries of Spanish Sonnets" href="/fez/view/bibliuned:363-Pruiz1">Distant Rhythm: Automatic Enjambment Detection on Four Centuries of Spanish Sonnets</a>. <b></b>.En: <span class="citation_conference_location">Montreal (Canada)</span>. ()RecordPonencia de CongresoPublishedLiteraturaRuiz Fabo, PabloMartínez Cantón, Clara IsabelPoibeau, Thierrybibliuned:363-Pruiz1http://e-spacio.uned.es/fez/view/bibliuned:363-Pruiz1Montreal (Canada)engRuiz_Fabo_Pablo.pdfpresmd_Ruiz_Fabo_Pablo.xmlbibliuned:363bibliuned:SetPonenciasbibliuned:SetopenaireDepartamento de Literatura Española (UNED). PonenciasSet de ponenciasSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRuiz FaboAcceso abierto0.681096631982022-10-03T00:00:00Z1392023-01-14T06:57:59Z2023-01-14T06:57:59ZNone of the above: Comparing Scenarios for Answerability Detection in Question Answering Systemsbibliuned:master-ETSInformatica-TL-JreyesEl reciente salto cualitativo en el rendimiento de los sistemas de Búsqueda de Respuestas (QA) ha motivado en paralelo la aparición de un gran número de nuevos conjuntos de datos de QA creados para evaluar dichos sistemas. Sin embargo, no hay suficientes estudios acerca del abanico de fenómenos de razonamiento que ocurren en QA, lo cual permitiría una evaluación más completa de los sistemas de QA. Un fenómeno que no ha recibido suficiente atención es la habilidad de no responder. En la práctica, es importante que cuando un sistema de Búsqueda de Respuestas no está seguro, pueda decidir no ofrecer ninguna respuesta. Sin embargo, la mayoría de los conjuntos de datos de QA no incluyen preguntas sin respuesta y, si las incluyen, no especifican en qué proporción. Hasta la fecha, no hay ningún conjunto de datos o guía para su creación disponible que especifique la cantidad óptima de preguntas sin respuesta que un sistema de Búsqueda de Respuestas debería ver durante el entrenamiento. En este trabajo, proponemos una modificación del popular conjunto de datos de opción múltiple RACE que convierte algunas preguntas en preguntas sin respuesta, y analizamos qué proporción de preguntas sin respuesta podría ofrecer los mejores resultados durante el entrenamiento y la evaluación de un modelo BERT de base.0Doctoral Thesis1792<a class="citation_author_name" title="Navegar por nombre de Autor de Reyes Montesinos, Julio" href="/fez/list/author/Reyes Montesinos, Julio/">Reyes Montesinos, Julio</a>. (<span class="citation_date">2022</span>). <i><a class="citation_title" title="Click para ver : None of the above: Comparing Scenarios for Answerability Detection in Question Answering Systems" href="/fez/view/bibliuned:master-ETSInformatica-TL-Jreyes">None of the above: Comparing Scenarios for Answerability Detection in Question Answering Systems</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Lenguajes y Sistemas Informáticos</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Lenguajes y Sistemas InformáticosReyes Montesinos, JulioRodrigo Yuste, ÁlvaroPeñas Padilla, Anselmobibliuned:master-ETSInformatica-TL-Jreyeshttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-TL-JreyesengReyesMontesinos_Julio_TFM.pdfpresmd_ReyesMontesinos_Julio_TFM.xmlbibliuned:master-ETSInformatica-TLbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en Tecnologías del Lenguaje (UNED)Set de items trabajo fin de másterSet de openaireReyes MontesinosAcceso abierto0.681096634232021-01-01T00:00:00Z242023-12-01T05:00:41Z2023-12-01T05:00:41ZUpbringing and parenting. Detection of socio-educational and training needs in parentsbibliuned:DptoMIDEI-FEDU-Articulos-Ptrillo-UpbringingLos progenitores se preguntan en multitud de ocasiones qué y cómo proceder ante las diferentes situaciones surgidas con sus hijos. A estas cuestiones intentan dar respuesta los programas de educación parental (PEP). Sin embargo, es pertinente llev0842<a class="citation_author_name" title="Navegar por nombre de Autor de Rubio Hernández, Francisco José" href="/fez/list/author/Rubio Hernández, Francisco José/">Rubio Hernández, Francisco José</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Jiménez Fernández, Carmen" href="/fez/list/author/Jiménez Fernández, Carmen/">Jiménez Fernández, Carmen</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Trillo Miravalles, María Paz" href="/fez/list/author/Trillo Miravalles, María Paz/">Trillo Miravalles, María Paz</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Upbringing and parenting. Detection of socio-educational and training needs in parents" href="/fez/view/bibliuned:DptoMIDEI-FEDU-Articulos-Ptrillo-Upbringing">Upbringing and parenting. Detection of socio-educational and training needs in parents</a>. RecordArtículo de revistaPublishedEducaciónRevista Española de PedagogíaRubio Hernández, Francisco JoséJiménez Fernández, CarmenTrillo Miravalles, María PazRevista Española de Pedagogíabibliuned:DptoMIDEI-FEDU-Articulos-Ptrillo-Upbringinghttp://e-spacio.uned.es/fez/view/bibliuned:DptoMIDEI-FEDU-Articulos-Ptrillo-Upbringinghttps://revistadepedagogia.org/wp-content/uploads/2021/05/5-REP-279_ENG-Rubio.pdf24926727979engEducación y crianza de los hijos. Detección de necesidades socioeducativas y formativas de los progenitoresTrilloMiravalles_MPaz_Upbringing.pdfpresmd_TrilloMiravalles_MPaz_Upbringing.xml0034-9461, 2174-0909 (Online)bibliuned:DptoMIDEI-FEDU-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento MIDE I (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRubio HernándezAcceso abiertohttps://doi.org/10.22550/REP79-2-2021-080.681096633132017-01-01T00:00:00Z2482017-09-14T00:58:12Z2019-01-10T18:30:55ZEnjambment Detection in a Large Diachronic Corpus of Spanish Sonnetsbibliuned:363-Cmartinez1Enjambment takes place when a syntactic unit is broken up across two lines of poetry, giving rise to different stylistic effects. In Spanish literary studies, there are unclear points about the types of stylistic effects that can arise, and under which linguistic conditions. To systematically gather evidence about this, we developed a system to automatically identify enjambment (and its type) in Spanish. For evaluation, we manually annotated a reference corpus covering different periods. As a scholarly corpus to apply the tool, from public HTML sources we created a diachronic corpus covering four centuries of sonnets (3750 poems), and we analyzed the occurrence of enjambment across stanzaic boundaries in different periods. Besides, we found examples that highlight limitations in current definitions of enjambment.0ponencia congreso7202<a class="citation_author_name" title="Navegar por nombre de Autor de Ruiz Fabo, Pablo" href="/fez/list/author/Ruiz Fabo, Pablo/">Ruiz Fabo, Pablo</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Martínez Cantón, Clara Isabel" href="/fez/list/author/Martínez Cantón, Clara Isabel/">Martínez Cantón, Clara Isabel</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Poibeau, Thierry" href="/fez/list/author/Poibeau, Thierry/">Poibeau, Thierry</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de González-Blanco García, Elena" href="/fez/list/author/González-Blanco García, Elena/">González-Blanco García, Elena</a>(<span class="citation_date">2017</span>) .<a class="citation_title" title="Click para ver : Enjambment Detection in a Large Diachronic Corpus of Spanish Sonnets" href="/fez/view/bibliuned:363-Cmartinez1">Enjambment Detection in a Large Diachronic Corpus of Spanish Sonnets</a>. <b></b>.En: <span class="citation_conference_location">Vancouver (Canada)</span>. ()RecordPonencia de CongresoPublishedLiteraturaAssociation for Computational LinguisticsRuiz Fabo, PabloMartínez Cantón, Clara IsabelPoibeau, ThierryGonzález-Blanco García, Elenabibliuned:363-Cmartinez1http://e-spacio.uned.es/fez/view/bibliuned:363-Cmartinez1Vancouver (Canada)engMartinez_Canton_enjambent.pdfpresmd_Martinez_Canton_enjambent.xmlbibliuned:363bibliuned:SetPonenciasbibliuned:SetopenaireDepartamento de Literatura Española (UNED). PonenciasSet de ponenciasSet de openairehttp://creativecommons.org/licences/by-nc-nd/4.0Licencia Creative CommonsRuiz FaboAcceso abierto0.681096634232016-05-15T00:00:00Z42024-02-21T04:53:53Z2024-02-22T02:35:59ZIsocratic LC–DAD–FLD method for the determination of flavonoids in paprika samples by using a rapid resolution column and post-column pH changebibliuned:DptoCA-FCIE-Articulos-Omonago-0011The determination of flavonoid compounds in paprika samples has been performed by liquid chromatography in series diode array and fluorescence detection (LC–DAD–FLD), by means of a pH change to basic medium just before FLD detection. The validation of the method was performed through the establishment of the external standard calibration curves and the analytical figures of merit. Limits of detection ranging from 0.006 to 0.02 mg L−1 and 0.007 to 0.09 mg L−1 were achieved using DAD and FLD detection, respectively. The experimental conditions to carry out the hydrolysis procedure to obtain flavonoid aglycones from flavonoid glycosides have been optimized applying an experimental design and the response surface methodology. The final conditions selected were 2.5 M HCl during 45 min at 85 °C. The repeatability of this procedure was assayed and relative standard deviation (RSD) values for concentration of quercetin and luteolin compounds were lower than 2%. The quantification of quercetin, luteolin and kaempferol compounds was carried out in less than 6 min in paprika samples by means of the external standard calibration. The analytes were extracted with methanol and the extracts were previously subjected to a cleanup procedure to extend the use of the chromatographic column.0322<a class="citation_author_name" title="Navegar por nombre de Autor de Monago Maraña, Olga" href="/fez/list/author/Monago Maraña, Olga/">Monago Maraña, Olga</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Muñoz de la Peña, Arsenio" href="/fez/list/author/Muñoz de la Peña, Arsenio/">Muñoz de la Peña, Arsenio</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Galeano Díaz , Teresa" href="/fez/list/author/Galeano Díaz , Teresa/">Galeano Díaz , Teresa</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Muñoz de la Peña, Arsenio" href="/fez/list/author/Muñoz de la Peña, Arsenio/">Muñoz de la Peña, Arsenio</a> . (<span class="citation_date">2016</span>) <a class="citation_title" title="Click para ver : Isocratic LC–DAD–FLD method for the determination of flavonoids in paprika samples by using a rapid resolution column and post-column pH change" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0011">Isocratic LC–DAD–FLD method for the determination of flavonoids in paprika samples by using a rapid resolution column and post-column pH change</a>. RecordArtículo de revistaPublishedCienciasThe registered version of this article, first published in Talanta, is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.talanta.2016.01.041ElsevierMonago Maraña, OlgaMuñoz de la Peña, ArsenioGaleano Díaz , TeresaMuñoz de la Peña, Arsenio1Talantabibliuned:DptoCA-FCIE-Articulos-Omonago-0011http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0011152243152engMonago_Marana_Olga_2016_Talanta.pdfpresmd_Monago_Marana_Olga_2016_Talanta.xml0039-9140; eISSN 1873-3573bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0License Creative CommonsMonago MarañaAcceso abiertohttps://doi.org/10.1016/j.talanta.2016.01.0410.661082734232023-03-01T00:00:00Z22024-03-23T08:44:11Z2024-03-23T08:44:11ZRoBERTime: un nuevo modelo para la detección de expresiones temporales en españolbibliuned:DptoLSI-ETSI-Articulos-Laraujo-0005Temporal expressions are all those words that refer to temporality. Their detection or extraction is a complex task, since it depends on the domain of the text, the language and the way they are written. Their study in Spanish and more specifically in the clinical domain is scarce, mainly due to the lack of annotated corpora. In this paper we propose the use of large language models to address the task, comparing the performance of five models of different characteristics. After a process of experimentation and fine tuning, a new model called RoBERTime is created for the detection of temporal expressions in Spanish, especially focused in the clinical domain. This model is publicly available. RoBERTime achieves state-of-the-art results in the E3C and Timebank corpora, being the first public model for the detection of temporal expressions in Spanish specialized in the clinical domain.0252<a class="citation_author_name" title="Navegar por nombre de Autor de Sánchez-de-Castro-Fernández, Alejandro" href="/fez/list/author/Sánchez-de-Castro-Fernández, Alejandro/">Sánchez-de-Castro-Fernández, Alejandro</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Araujo, Lourdes" href="/fez/list/author/Araujo, Lourdes/">Araujo, Lourdes</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Martinez-Romo, Juan" href="/fez/list/author/Martinez-Romo, Juan/">Martinez-Romo, Juan</a> . (<span class="citation_date">2023</span>) <a class="citation_title" title="Click para ver : RoBERTime: un nuevo modelo para la detección de expresiones temporales en español" href="/fez/view/bibliuned:DptoLSI-ETSI-Articulos-Laraujo-0005">RoBERTime: un nuevo modelo para la detección de expresiones temporales en español</a>. RecordArtículo de revistaPublishedIngeniería InformáticaThe registered version of this article, first published in Natural Language Processing 70 (2023) p.39-51, is available online on the publisher's website: Sociedad Española para el Procesamiento del Lenguaje Natural, http:// doi.org/10.26342/2023-70-3Sociedad Española para el Procesamiento del Lenguaje NaturalSánchez-de-Castro-Fernández, AlejandroAraujo, LourdesMartinez-Romo, Juan1Procesamiento del Lenguaje Naturalbibliuned:DptoLSI-ETSI-Articulos-Laraujo-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoLSI-ETSI-Articulos-Laraujo-0005395170engRoBERTime: A novel model for the detection of temporal expressions in SpanishAraujo_Lourdes_Robertime_a_novel_model.pdfpresmd_Araujo_Lourdes_Robertime_a_novel_model.xml1135-5948bibliuned:DptoLSI-ETSI-Articulosbibliuned:SetopenaireDepartamento de Lenguajes y Sistemas Informáticos. E.T.S.I Informática (UNED). ArtículosSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/es/License Creative CommonsSánchez-de-Castro-FernándezAcceso abiertohttp://doi.org/10.26342/2023-70-30.661082734232012-01-01T00:00:00Z4902014-05-15T23:19:27ZEugenio Fuentes y la (re)creación del género policiacobibliuned:Epos-2012-28-6065El artículo analiza las obras que integran la serie de novelas negras protagonizadas
por el detective Ricardo Cupido, escritas por Eugenio Fuentes durante las décadas de
1990 y 2000. Además de centrarse en diversos aspectos narratológicos, el artículo reflexiona
sobre el modo en que las novelas respetan y a la vez subvierten las características
básicas del género.The paper analyzes the crime novels by Ricardo Cupido, featuring the private detective
Ricado Cupido (1990s-2000s). The paper studies some narratological aspects and
reflects how these novels respect and subvert the basic features of crime stories.04552<a class="citation_author_name" title="Browse by Author Name for Sánchez Zapatero, Javier" href="/fez/list/author/Sánchez Zapatero, Javier/">Sánchez Zapatero, Javier</a> . (<span class="citation_date">2012</span>) <a class="citation_title" title="Click to view : Eugenio Fuentes y la (re)creación del género policiaco" href="/fez/view/bibliuned:Epos-2012-28-6065">Eugenio Fuentes y la (re)creación del género policiaco</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/067278FilologíaUniversidad Nacional de Educación a Distancia (España). Facultad de FilologíaSánchez Zapatero, Javierbibliuned:Epos-2012-28-6065bibliuned:Epos-2012-28-6065esDocumento.pdfbibliuned:Epos-2012-28bibliuned:Setopenairebibliuned:SetarticuloEpos : revista de filología.Año 2012, n. 28Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsSánchez ZapateroAcceso abierto0.655955331982021-07-01T00:00:00Z4572021-10-29T19:37:18Z2021-10-29T19:37:18ZFake News Detection using news content and user engagementbibliuned:master-ETSInformatica-ICD-MperezFake news are purposefully designed to be misleading, and their success depends mostly on their readers [ ¨OG17]. Due to the nature of social networks, fake news can be quickly propagated, potentially causing a great damage to the society. Moreover, sociological phenomena like echo chambers or polarization [Sil+16], and psychological factors like confirmation bias [Del+16] or overconfidence to be fooled by fake news 1, create the perfect playground for misinformation [Tac +17] [Del+18]. Platforms have recently adopted measures 2 to discourage users sharing content without reading it first, but these measures are still not fully enforced and easy to bypass. An automatic fake news detection system that blocks or warns users about possibly misleading information will be needed in the near future, espe-cially with the high volume of information that is shared through these websites. Several models have been proposed to detect fake news by analyzing linguistic features [HA17] [Pot +17][BS19] [KGN21], but these are often not enough [Shu+18] to distinguish fake news from real ones. Research is now focusing on including user engagement information to existing contentbased models [RSL17] [Del+18] [SML19]. Some systems have been proposed that only use information from these engagements [Tac+17]. Part of the research has focused on creating training datasets [SW18] [Shu+18] for this task, crawling news from fact-checking websites and fetching user engagements using the public APIs offered by social networks. In this work, we develop and test different fake news detection systems using information from news articles and user engagements in social networks. Two different architectures are used. The main one is based on Deep Learning, and can process news content and user engagements. The second one is based on well-known algorithms like logistic regression, SVM, random forest, LightGBM or XGBoost; it can only process news content and is used as a performance baseline for our Deep Learning models. We use the FakeNewsNet dataset [Shu+18], which contains real and fake news from two factchecking sources. For each news piece, this dataset contains the scraped news article, as well as tweets and retweets related to each news, and user profiles of the users involved in these tweet, including the user’s timeline, followers and followees, although not all this information will be used. Our work starts with an exploratory data analysis on the train set, where we highlight the main charac-teristics of the dataset. Then, we carry out a series of tests on both architectures, taking news from each set of news, with different subsets of features and with various textual representation techniques. Additionally, we perform an ablation test on the Deep Learning architecture, to understand how individual features behave and how do they complement each other. Our results clearly show that our architecture is able to capture much information from user engagements, and that including user interactions gives better results than models using only information from news articles. With this work, our main contribution is a Deep Learning architecture capable of handling varying-length sequences of engagements for each piece of news, while also extracting all the information from them without padding or truncating to fixed-size sequences. We take advantage of recent innovations in frameworks like Tensorflow to process non-tabular-shaped data, which allows to directly include unaggregated features, minimizing the preprocessing required before the input data is fed to the model. This architecture can perform complex summarizations, such as a trainable recurrent layer that takes a sequence of user engagements in the same order as they were published, and outputs a vector that summarizes the whole user engagement sequence0Doctoral Thesis3812<a class="citation_author_name" title="Navegar por nombre de Autor de Pérez Madre, Mario" href="/fez/list/author/Pérez Madre, Mario/">Pérez Madre, Mario</a>. (<span class="citation_date">2021</span>). <i><a class="citation_title" title="Click para ver : Fake News Detection using news content and user engagement" href="/fez/view/bibliuned:master-ETSInformatica-ICD-Mperez">Fake News Detection using news content and user engagement</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia ArtificialPérez Madre, MarioRodrigo Yuste, Álvarobibliuned:master-ETSInformatica-ICD-Mperezhttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-ICD-MperezengPerezMadre_MarioTFM.pdfpresmd_PerezMadre_MarioTFM.xmlbibliuned:master-ETSInformatica-ICDbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en Ingeniería y Ciencia de Datos (UNED)Set de items trabajo fin de másterSet de openairePérez MadreAcceso abierto0.650775334172015-02-02T00:00:00Z20542015-02-16T20:17:16Z2015-02-18T05:23:19ZDetectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedadtesisuned:IngInd-CtmedranoFalls are an important public health problem, leading to severe physical and psychological consequences among the elderly and economic consequences for health systems. A prompt detection of falls could alleviate these problems. Despite the large number of scientific studies, this kind of detectors has not become popular and a reliable and robust detector, usable by the elderly and at an affordable price, would be welcome. Computer Vision-based systems are restricted to a given environment and the variety of published algorithms indicates that the ultimate solution has not been found yet. Wearable sensors can be used at any place and time, but they are not comfortable and the user can forget to wear them. However, if the sensors were integrated in a smartphone, these drawbacks will disappear to a great extent. In this thesis, we propose to use novelty detection algorithms in mid-range smartphones. Smartphones are becoming very popular. Even though they are not adapted for older people, a suitable design could help to overcome this barrier. Besides, it is clear that the elderly in the future will get used to utilising them. Mid-range devices include accelerometers and communication functions at a reasonable price. On the other hand, several algorithms has been tested to detect falls from accelerometer data, either simple thresholds or more complex Machine Learning techniques. Novelty detection techniques model the normal behaviour (movement), so that a fall could be detected as an anomaly. This is interesting for several reasons. While real fall data are scarce, it is easy to record true data of activities of daily living (ADL), as much as needed. In addition, whenever a new user carries the phone, it can record new data and re-train the system. In this way the detector can adapt to conditions different from those of the first training phase, like the kind of movements or the place where the phone is worn. To carry on our study, we have registered a data set with ten volunteers, who simulated falls and carried the phone in their daily life for several days. The data set is publicly available, being one of the few that can be found for fall detection, and improving the others in terms of number of records. An off-line analysis has been made with our data set. We have compared some of the state-of-the-art novelty detection algorithms. We have selected the nearest neighbour (NN) as the most suitable. Then, we have compared it with a traditional classifier, a Support Vector Machine (SVM). SVM outperforms NN in a standar cross-validation, in a cross-validation by fall type or if the system operates at a different sampling frequency. Nevertheless, if the phone is worn in a different place (pocket - hand bag) or if it is personalized, NN reaches or even exceeds SVM in performance. Additional conditions regarding the inactivity or the orientation change after the fall can improve the results. We have estimated the number of false positives per week in a set of ADL of older people. We have found a reasonable number for some of them, but the system has still to ameliorate for others. A mobile application has been developed as a proof-ofconcept, checking its correct operation. Our future lines of work will be splitted in two sides. Firstly, from a more technical point of view, we would like to improve NN algorithms by smoothing the decision boundary. Secondly, we think that it would be highly desirable to record data from older people all over the time line for several days, without gaps, unlike our first data set, in order to take into account all the phases of a potential fall.0Doctoral Thesis7762<a class="citation_author_name" title="Browse by Author Name for Medrano Sánchez,Carlos Tomás" href="/fez/list/author/Medrano Sánchez,Carlos Tomás/">Medrano Sánchez,Carlos Tomás</a>. <b><i><a class="citation_title" title="Click para ver : Detectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedad" href="/fez/view/tesisuned:IngInd-Ctmedrano">Detectores de caídas para teléfonos inteligentes basados en algoritmos de detección de novedad</a></i></b> . <span class="citation_date">2015</span>. <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingenieros Industriales. Departamento de Ingeniería Eléctrica, Electrónica y Control</span>RecordDoctoral ThesisPublishedIngeniería IndustrialUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingenieros Industriales. Departamento de Ingeniería Eléctrica, Electrónica y ControlMedrano Sánchez,Carlos TomásCastro Gil, Manuel Alonso (Director de Tesis)Plaza García, Inmaculada1tesisuned:IngInd-Ctmedranohttp://e-spacio.uned.es/fez/view/tesisuned:IngInd-CtmedranospaMEDRANO_SANCHEZ_Carlos_Tomas_Tesis.pdfbackwardsFallTitle.mpgfaintingFallTitle.mpgforwardFallsTitle.mpglearningJumpingTitle.mpglearningSpinningTitle.mpgobstacleFallTitle.mpgpresmd_MEDRANO_SANCHEZ_Carlos_Tomas_Tesis.xmlpresmd_backwardsFallTitle.xmlpresmd_faintingFallTitle.xmlpresmd_forwardFallsTitle.xmlpresmd_learningJumpingTitle.xmlpresmd_learningSpinningTitle.xmlpresmd_obstacleFallTitle.xmlpresmd_publicaciones.xmlpresmd_sittingTitle.xmlpublicaciones.zipsittingTitle.mpgstream_backwardsFallTitle.flvstream_faintingFallTitle.flvstream_forwardFallsTitle.flvstream_learningJumpingTitle.flvstream_learningSpinningTitle.flvstream_obstacleFallTitle.flvstream_sittingTitle.flvthumbnail_backwardsFallTitle.jpgthumbnail_faintingFallTitle.jpgthumbnail_forwardFallsTitle.jpgthumbnail_learningJumpingTitle.jpgthumbnail_learningSpinningTitle.jpgthumbnail_obstacleFallTitle.jpgthumbnail_sittingTitle.jpgbibliuned:Setthesistesisuned:IngIndbibliuned:SetopenaireSet de Tesis Doctorales de la UNEDTesis de la Facultad E.T.S. Ingenieros Industriales (UNED)Set de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/Licencia de acceso Creative CommonsMedrano SánchezAcceso abierto0.6233372731982020-03-06T00:00:00Z5922021-09-20T21:03:06Z2021-09-20T21:52:08ZThermographic Breast Cancer Detection. Deep Learning with a Small Datasetbibliuned:master-ETSInformatica-IAA-AsafontAccording to the World Health Organization (WHO), breast carcinoma is the cancer with highest prevalence among women, with 2.1 million new diagnoses every year. Given the risk of death associated to the metastasis during the late stages of the cancer, early detection is the optimal strategy to reduce the risk of death. Among the numerous tests that can be used in the breast cancer screening, thermography represents a non-invasive, painless, and free of ionizing radiation. The research group within which I have done this research is interested in applying artificial intelligence to analyzing thermographic images for breast cancer screening. Given that the project that this group intends to carry out in collaboration with HM Hospitales has not yet begun, we have used in this master thesis the Database for Mastology Research (DMR) developed at the Visual Lab of the Universidade Federal Fluminense, in Brazil, which is the only dataset of breast thermograms publicly available. It contains 216 patients, with up to 25 image per patient. It has been studied in dozens of research works, most of them using statistical feature extraction and machine learning algorithms for classification. Unfortunately this database has important flaws, such as two different patient having exactly the same image (pixel by pixel), which have not been mentioned in previous works. For this reason we have devoted a significant effort to cleaning the dataset, which reduced it to only 188 images. We have then tried several deep learning models for image classification. We first built from scratch several Convolutional Neural Networks (CNNs), each consisting of n pairs of convolutional-maxpool layers, a flatten layer, and n dense layers, for different values of n. All the CNNs gave poor results: the highest accuracy, obtained for n = 4, was 75%, and the largest area under the ROC (AUC), obtained for n = 5, was 0.70. We also took into account that a false positive, which may cause anxiety and discomfort to the patient and lead to a biopsy, is not as serious as a false positive, which may delay the detection of cancer, thus requiring more aggressive and expensive treatments and drastically reducing the survival rate. After consulting with a radiologist of HM Montepríncipe hospital, we estimate that the relative cost of a false negative is at least 20 times higher than that of a false positive and defined a metric in which a false negative weighs the same as 20 false positives. In our study, the CNN with n = 5 has the smallest weighted error, by far, so we have selected this network as a reference for the next phases of our study. In the second group of experiments we have used three of the most popular pre-trained CNNs available in Keras: VGG16, VGG19, and ResNet50, and optimized their parameters for our dataset; this process is usually called transfer learning. Contrary to other results published in the literature, all these re-trained CNNs performed worse than the optimal network built from scratch, i.e., the one with n = 5. Finally, we have built several hybrid models by replacing the top m layers of the optimal CNN with either a Support Vector Machine (SVM) or a Sum-Product Network (SPN), for different values of m. Again the performance was lower than for the optimal pure CNN. The conclusion is that when the dataset contains a relatively small number of images, large CNNs tend to overfit, thus leading to poor AUCs, contrary to the case of large datasets, for which very deep networks usually perform much better than shallow ones. An additional reason for which transfer learning did not work in our study is that the above-mentioned networks were trained for color images, while in a thermogram every pixel does not represent a red-green-blue (RGB) color, but a temperature, and for this reason in our case the networks built from scratch (at least some of them) performed better than re-trained CNNs.0Doctoral Thesis3602<a class="citation_author_name" title="Navegar por nombre de Autor de Safont Andreu, Anna" href="/fez/list/author/Safont Andreu, Anna/">Safont Andreu, Anna</a>. (<span class="citation_date">2020</span>). <i><a class="citation_title" title="Click para ver : Thermographic Breast Cancer Detection. Deep Learning with a Small Dataset" href="/fez/view/bibliuned:master-ETSInformatica-IAA-Asafont">Thermographic Breast Cancer Detection. Deep Learning with a Small Dataset</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.Safont Andreu, AnnaSánchez Cauce, RaquelDíez Vegas, Francisco Javierbibliuned:master-ETSInformatica-IAA-Asafonthttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IAA-AsafontengSafont_Andreu_Anna_TFM.pdfpresmd_Safont_Andreu_Anna_TFM.xmlbibliuned:master-ETSInformatica-IAAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en I.A. Avanzada: Fundamentos, Métodos y Aplicaciones (UNED)Set de items trabajo fin de másterSet de openaireSafont AndreuAcceso abierto0.607223434232018-01-01T00:00:00Z202024-02-13T05:31:18Z2024-02-13T07:29:28ZCan computational talent be detected? Predictive validity of the Computational Thinking Testbibliuned:DptoMIDEII-FEDU-Articulos-Jcperez-0005Computational thinking (CT) is arising as a set of problem-solving skills that must be acquired by the new generations of students to fully understand and participate in our computer-based world. However, from a psychometric approach, we are still at an early stage regarding the definition and assessment of CT as a psychological variable. One way to advance in this area is to investigate whether ‘computationally talented’ students (i.e., ‘computational top thinkers’) can be detected even before learning to code; and, if so, how to teach them properly to fully develop their high-computational ability. This paper presents several empirical concatenated studies about the predictive validity of the Computational Thinking Test (CTt), which is administered on a sample of 314 middle school Spanish students (n = 314). We report the predictive validity of the CTt, conducted at the beginning of the quarter, with respect to academic performance (Informatics, Mathematics, and Language) and learning analytics in a Code.org course collected at the end of the quarter. We also analyze the predictive validity of the CTt to early distinguish between ‘computational regular thinkers’ and ‘computational top thinkers’ (i.e., those who spontaneously accelerated from the ‘block-based’ programming environment of Code.org to the ‘text-based’ one of Khan Academy). Finally, we perform a case study over two of the students categorized as ‘computational top thinkers’, in which one of their coding products written in Processing JavaScript is described. Our results demonstrate that ‘computationally talented’ students can be detected in middle school, and that these subjects have the ability to accelerate in the Computer Science Education standards between 1 and 2 years compared to the regular learners. This could have major implications on the emerging computing curricula, which should take into account these individual differences in computational ability and ‘learning-how-to-code’ speed to ensure an appropriate progression for every student.0352<a class="citation_author_name" title="Navegar por nombre de Autor de Román-González, Marcos" href="/fez/list/author/Román-González, Marcos/">Román-González, Marcos</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Pérez-González, Juan Carlos" href="/fez/list/author/Pérez-González, Juan Carlos/">Pérez-González, Juan Carlos</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Moreno-León, Jesús" href="/fez/list/author/Moreno-León, Jesús/">Moreno-León, Jesús</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Robles, Gregorio" href="/fez/list/author/Robles, Gregorio/">Robles, Gregorio</a> . (<span class="citation_date">2018</span>) <a class="citation_title" title="Click para ver : Can computational talent be detected? Predictive validity of the Computational Thinking Test" href="/fez/view/bibliuned:DptoMIDEII-FEDU-Articulos-Jcperez-0005">Can computational talent be detected? Predictive validity of the Computational Thinking Test</a>. RecordArtículo de revistaPublishedEducaciónLa versión registrada de este artículo, publicado por primera vez en International Journal of Child-Computer Interaction, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.ijcci.2018.06.004ElsevierRomán-González, MarcosPérez-González, Juan CarlosMoreno-León, JesúsRobles, Gregorio1International Journal of Child-Computer Interactionbibliuned:DptoMIDEII-FEDU-Articulos-Jcperez-0005http://e-spacio.uned.es/fez/view/bibliuned:DptoMIDEII-FEDU-Articulos-Jcperez-0005475818engPerez_Gonzalez_Juan_C_Predictive.pdfpresmd_Perez_Gonzalez_Juan_C_Predictive.xml2212-8689bibliuned:DptoMIDEII-FEDU-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento MIDE II (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRomán-GonzálezAcceso abiertohttps://doi.org/10.1016/j.ijcci.2018.06.0040.607223434232023-11-03T00:00:00Z192023-11-24T05:34:09Z2023-11-24T05:36:00ZAssessment of molecularly imprinted polymers as selective solid-phase extraction sorbents for the detection of cloxacillin in drinking and river waterbibliuned:DptoCA-FCIE-Articulos-Jcbravo-0001This paper describes a new methodology for carrying out quantitative extraction of cloxacillin from drinking and river water samples using a molecularly imprinted polymer (MIP) as a selective sorbent for solid-phase extraction (MISPE). Several polymers were synthesized via thermal polymerization using cloxacillin as a template, methacrylic acid (MAA) as a functional monomer, ethyleneglycoldimethacrylate (EGDMA) as a cross-linker and different solvents as porogens. Binding characteristics of the adequate molecularly imprinted and non-imprinted (NIP) polymers were evaluated via batch adsorption assays following the Langmuir and Freundlich isotherms and Scatchard assays. The parameters related to the extraction approach were studied to select the most appropriate polymer for cloxacillin determination. Using the optimized MIP as the SPE sorbent, a simple sample treatment methodology was combined with high-performance liquid chromatography (HPLC) to analyze cloxacillin residues in drinking and river water. Under the optimum experimental conditions, the MISPE methodology was validated using spiked samples. The linearity for cloxacillin was assessed within the limits of 0.05–1.5 g L0702<a class="citation_author_name" title="Navegar por nombre de Autor de Garcinuño, Rosa María" href="/fez/list/author/Garcinuño, Rosa María/">Garcinuño, Rosa María</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Collado, Eduardo José" href="/fez/list/author/Collado, Eduardo José/">Collado, Eduardo José</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua, Gema" href="/fez/list/author/Paniagua, Gema/">Paniagua, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Bravo, Juan Carlos" href="/fez/list/author/Bravo, Juan Carlos/">Bravo, Juan Carlos</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> . (<span class="citation_date">2023</span>) <a class="citation_title" title="Click para ver : Assessment of molecularly imprinted polymers as selective solid-phase extraction sorbents for the detection of cloxacillin in drinking and river water" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Jcbravo-0001">Assessment of molecularly imprinted polymers as selective solid-phase extraction sorbents for the detection of cloxacillin in drinking and river water</a>. RecordArtículo de revistaPublishedCienciasQuímicaLa versión registrada de este artículo, publicado por primera vez por MDPI en "Polymers" en 3 noviembre 2023, disponible online: https://doi.org/10.3390/polym15214314MDPIGarcinuño, Rosa MaríaCollado, Eduardo JoséPaniagua, GemaBravo, Juan CarlosFernández Hernando, PilarPolymersbibliuned:DptoCA-FCIE-Articulos-Jcbravo-0001http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Jcbravo-00012115engGarcinuno_Rosa_Assessment.pdfpresmd_Garcinuno_Rosa_Assessment.xml2073-4360bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0/Licencia Creative CommonsGarcinuñoAcceso abiertohttps://doi.org/10.3390/polym152143140.5927338631982022-09-18T00:00:00Z1002023-09-15T05:43:03Z2023-09-15T05:43:03ZDetecting Most Important Sentences in Training Corpus For NER Taskbibliuned:master-ETSInformatica-IIA-LestebanEl Reconocimiento de Entidades Nominales (NER) consiste en la localización de una expresión textual que hace referencia a una entidad en el texto. Durante los ´últimos 25 años este problema ha sido sujeto de investigación dada su aplicación en variedad de sistemas de Procesamiento del Lenguaje Natural (NLP). Además, el NER en el dominio biomédico tiene un interés especial, así como dificultades debido a la heterogeneidad y polisemia en algunas entidades como son: genes, síntomas y enfermedades. Aunque los sistemas NER han mejorado sustancialmente en los últimos años gracias al rápido desarrollo del Deep Learning, todavía queda margen de mejora y, por este motivo, todavía se organizan campañas de evaluación para hacer avanzar el estado del arte. En este trabajo, hemos propuesto un sistema completo capaz de llevar a cabo la tarea NER basado en el deep transformer, BERT. Este sistema utiliza etiquetas BIO, por lo que las etapas de pre y post procesamiento también se han diseñado y desarrollado de cero. Utilizaremos la campaña de evaluación eHealth Knowledge Discovery Challenge at Iber- LEF 2021 como marco para nuestro desarrollo. Utilizando este sistema, vamos a estudiar el impacto de la selección de oraciones en el entrenamiento del propio sistema. Primero, describimos las oraciones del corpus dados ciertos rasgos morfosintácticos y semánticos. Después, entrenamos el sistema con diferente número de oraciones, que han sido seleccionadas según ciertos criterios de los rasgos, y comparamos los resultados con el mismo número de oraciones que han sido escogidas de forma aleatoria. Los resultados muestran que el entrenamiento con oraciones concretas puede desempeñar mejor que la selección aleatoria cuando poca cantidad de datos de entrenamiento están disponibles. Finalmente, calculamos y comparamos los resultados de este sistema en la tarea eHealth KD 2021, además de las técnicas utilizadas por los resultados al nivel del estado del arte.0Doctoral Thesis1342<a class="citation_author_name" title="Navegar por nombre de Autor de Esteban Andaluz, Luis" href="/fez/list/author/Esteban Andaluz, Luis/">Esteban Andaluz, Luis</a>. (<span class="citation_date">2022</span>). <i><a class="citation_title" title="Click para ver : Detecting Most Important Sentences in Training Corpus For NER Task" href="/fez/view/bibliuned:master-ETSInformatica-IIA-Lesteban">Detecting Most Important Sentences in Training Corpus For NER Task</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia ArtificialEsteban Andaluz, LuisMartínez Unanue, Raquelbibliuned:master-ETSInformatica-IIA-Lestebanhttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IIA-LestebanengEsteban_Andaluz_Luis_TFM.pdfpresmd_Esteban_Andaluz_Luis_TFM.xmlbibliuned:master-ETSInformatica-IIAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en Investigación en Inteligencia ArtificialSet de items trabajo fin de másterSet de openaireEsteban AndaluzAcceso abierto0.5927338634232024-02-14T00:00:00Z42024-03-22T05:31:21Z2024-03-22T05:31:21ZEffects of UVC irradiation on polystyrene for healthcare packaging: Study by FTIR and Raman spectroscopy with thermoluminescencebibliuned:DptoCA-FCIE-Articulos-Jcbravo-0006The interaction between ultraviolet C radiation (UVC) and polystyrene (PS) materials has been investigated, particularly in post-packaging irradiation processes for healthcare applications. Effective UVC penetration through PS materials, regardless of their thickness (0.16 and 0.40 mm) has been observed. However, the penetration effectiveness could be affected by the thickness of the PS material. Achieving optimal post-packaging UVC treatment requires a thorough evaluation of chemical composition and material thickness, especially in pharmaceutical and medical packaging industries. Preliminary results reveal minimal degradation in UVC-irradiated PS packaging samples, as supported by FTIR and Raman spectroscopy characterization. Minor variations could be attributed to intrinsic PS materials properties and/or their respective background, rather than the influence of UVC radiation. Consequently, PS materials exhibit resilience under the experimental conditions following UVC irradiation treatment. Furthermore, a comprehensive analysis of thermoluminescence (TL) emissions evaluates several commercial dosimeter materials for UVC radiation detection. The TLD-100 and TLD-200 dosimeters show potential as UVC detectors, displaying distinct responses linked to the non-ionizing component of UVC radiation at 310 ◦C and in the range of 150–250 ◦ C, respectively. However, the TLD-400 and GR-200 dosimeters are not suitable for UVC detection due to their spread TL emissions considering intensity and curve shape. This UVC-TL analysis consistently detects radiation in the proposed commercial dosimeter materials one-hour post-exposure, providing assurance that healthcare materials have been irradiated. Such analysis enhances reliability during extended UVC exposures, offering valuable insights for industries employing UVC-irradiated materials, particularly in healthcare applications.0202<a class="citation_author_name" title="Navegar por nombre de Autor de Boronat, C" href="/fez/list/author/Boronat, C/">Boronat, C</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Correcher, V." href="/fez/list/author/Correcher, V./">Correcher, V.</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de García-Guinea, J" href="/fez/list/author/García-Guinea, J/">García-Guinea, J</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Bravo Yagüe, Juan Carlos" href="/fez/list/author/Bravo Yagüe, Juan Carlos/">Bravo Yagüe, Juan Carlos</a> . (<span class="citation_date">2024</span>) <a class="citation_title" title="Click para ver : Effects of UVC irradiation on polystyrene for healthcare packaging: Study by FTIR and Raman spectroscopy with thermoluminescence" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Jcbravo-0006">Effects of UVC irradiation on polystyrene for healthcare packaging: Study by FTIR and Raman spectroscopy with thermoluminescence</a>. RecordArtículo de revistaPublishedCienciasThe registered version of this article, first published in Polymer Degradation and Stability,(2024) 22 110700 is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.polymdegradstab.2024.110700ElsevierBoronat, CCorrecher, V.García-Guinea, JBravo Yagüe, Juan Carlos1Polymer Degradation and Stabilitybibliuned:DptoCA-FCIE-Articulos-Jcbravo-0006http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0006222engBravo_Yague_Juan_Carlos_Effects_UVC_irradiation.pdfpresmd_Bravo_Yague_Juan_Carlos_Effects_UVC_irradiation.xml0141-3910; eISSN: 1873-2321bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/es/License Creative CommonsBoronatAcceso abiertohttps://doi.org/10.1016/j.polymdegradstab.2024.1107000.5927338631982023-01-01T00:00:00Z1312023-12-08T09:43:21Z2023-12-08T09:43:21ZExploring the Power of Large Language Models: News Intention Detection using Adaptive Learning Promptingbibliuned:master-ETSInformatica-TL-AcaballeroIn today’s interconnected global landscape, political news wields significant influence in shaping voter perceptions. Political news stands as a primary source of information for citizens in democratic societies. Understanding the intentions underlying news articles is indispensable for ensuring transparency in political discourse. It empowers the public to make informed decisions and to hold media platforms accountable for the information they disseminate, whether directly or indirectly. Precise identification of news intentions holds the potential to safeguard democratic processes, forming the core focus of this Master’s thesis. Accurate identification of news intentions assumes a central role in Natural Language Processing (NLP) for effective information analysis and categorization. This research project delves into the innovative concept of “Adaptive Learning Prompting”. It harnesses the formidable capabilities of Large Language Models (LLMs) for efficient news intention classification through iterative prompt engineering, with a specific emphasis on resource-constrained scenarios. Employing a dynamic evaluation methodology conducted in iterative batches, this research meticulously tracks model performance. Through trend analysis, the evolution of the proposed model architecture emerges as statistically significant, effectively demonstrating the adaptability inherent in this proposed approach. In summary, this Master’s thesis serves as a testament to the potential of LLMs in adaptive news intention identification. Particularly noteworthy is the “Adaptive Learning Prompting” strategy. While specific performance metrics may exhibit variations, the adaptive approach underscores the feasibility of iterative feedback prompting for operational enhancements, especially in resource-scarce scenarios. These findings transcend the realm of news intention analysis, offering broader applications in NLP, while shedding light on the reasoning capabilities intrinsic to LLMs, thereby amplifying their utility.0Doctoral Thesis3532<a class="citation_author_name" title="Navegar por nombre de Autor de Caballero Hinojosa, Alberto" href="/fez/list/author/Caballero Hinojosa, Alberto/">Caballero Hinojosa, Alberto</a>. (<span class="citation_date">2023</span>). <i><a class="citation_title" title="Click para ver : Exploring the Power of Large Language Models: News Intention Detection using Adaptive Learning Prompting" href="/fez/view/bibliuned:master-ETSInformatica-TL-Acaballero">Exploring the Power of Large Language Models: News Intention Detection using Adaptive Learning Prompting</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Lenguajes y Sistemas Informáticos</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Lenguajes y Sistemas InformáticosCaballero Hinojosa, AlbertoRodrigo Yuste, ÁlvaroCenteno Sánchez, Robertobibliuned:master-ETSInformatica-TL-Acaballerohttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-TL-AcaballeroengCaballero_Alberto_TFM.pdfpresmd_Caballero_Alberto_TFM.xmlbibliuned:master-ETSInformatica-TLbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en Tecnologías del Lenguaje (UNED)Set de items trabajo fin de másterSet de openaireCaballero HinojosaAcceso abierto0.5927338631982020-10-06T00:00:00Z2572021-09-22T19:18:19Z2021-09-22T19:18:19ZWhite Matter Hyperintensities Segmentation with Prototype Learningbibliuned:master-ETSInformatica-IAA-OalarconThis paper proposes a new method -based on meta-learning- for the WMH Segmentation Challenge, organized by UMC Utrecht, VU Amsterdam, and NUHS Singapore hospitals. The purpose of this challenge is to compare methods for the semantic segmentation of white matter hyperintensities (WMH), which are brain white matter lesions, of presumably vascular origin in brain imaging obtained with magnetic resonance. White matter hyperintensities are found in patients with brain diseases like Parkinson, Alzheimer or stroke. Semantic segmentation refers to the process of linking each pixel in an image to a class label. The semantic segmentation of images has had a great advance with convolution neural networks, but they require a large number of images to be able to obtain good results. Convolutional neural networks are a type of neural networks specialized on images which architecture is similar to neurons’ pattern in human brain and they were inspired by the organization of the visual cortex. With the aim to reduce the number of images required in training, in this work, we propose the use of meta-learning algorithms, in particular prototype learning, to do this semantic segmentation. In addition, this approach also allows the network to be used in a different task for which it was not trained, which can improve its potential use. Results obtained suggest that it could be possible to use the network trained to a specific task (i.e., detect WMH in the brain), to another task (i.e. detect any kind of tumors in the brain).0Doctoral Thesis3642<a class="citation_author_name" title="Navegar por nombre de Autor de Alarcón Palomar, Óscar" href="/fez/list/author/Alarcón Palomar, Óscar/">Alarcón Palomar, Óscar</a>. (<span class="citation_date">2020</span>). <i><a class="citation_title" title="Click para ver : White Matter Hyperintensities Segmentation with Prototype Learning" href="/fez/view/bibliuned:master-ETSInformatica-IAA-Oalarcon">White Matter Hyperintensities Segmentation with Prototype Learning</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.Alarcón Palomar, ÓscarSantos Martín, Olga C.bibliuned:master-ETSInformatica-IAA-Oalarconhttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IAA-OalarconengAlarcon_Palomar_Oscar_TFM.pdfpresmd_Alarcon_Palomar_Oscar_TFM.xmlbibliuned:master-ETSInformatica-IAAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en I.A. Avanzada: Fundamentos, Métodos y Aplicaciones (UNED)Set de items trabajo fin de másterSet de openaireAlarcón PalomarAcceso abierto0.5838073534232021-01-01T00:00:00Z172024-02-06T08:29:31Z2024-02-06T08:29:31ZSocial media semantic perceptions on Madrid Metro system: Using Twitter data to link complaints to spacebibliuned:DptoGEO-FGH-Articulos-Josorio-0002Social networks are platforms widely used by travelers who express their opinions about many services like public transport. This paper investigates the value of texts from social networks as a data source for detecting the spatial distribution of problems within a public transit network by geolocating citizens' feelings, and analyzes the effects some factors such as population or income have over that spatial spread, with the goal of developing a more intelligent and sustainable public transit service. For that purpose, Twitter data from the Madrid Metro account is collected over a two-month period. Topics and sentiments are identified from text mining and machine learning algorithms, and mapped to explore spatial and temporal patterns. Lastly, a Geographically Weighted Regression model is used to explore the causality of the spatial distribution of complaining users, by using official data sources as exploratory variables. Results show Twitter users tend to be mid-income workers who reside in peripheral areas and mainly tweet when traveling to workplaces. The main detected problems were punctuality and breakdowns in transfer stations or in central areas, mainly in the early morning of weekdays, and affected by density of points of interest in destination areas.0352<a class="citation_author_name" title="Navegar por nombre de Autor de Osorio-Arjona, Joaquín" href="/fez/list/author/Osorio-Arjona, Joaquín/">Osorio-Arjona, Joaquín</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Horak, Jiri" href="/fez/list/author/Horak, Jiri/">Horak, Jiri</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Svoboda, Radek" href="/fez/list/author/Svoboda, Radek/">Svoboda, Radek</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de García-Ruiz, Yolanda" href="/fez/list/author/García-Ruiz, Yolanda/">García-Ruiz, Yolanda</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : Social media semantic perceptions on Madrid Metro system: Using Twitter data to link complaints to space" href="/fez/view/bibliuned:DptoGEO-FGH-Articulos-Josorio-0002">Social media semantic perceptions on Madrid Metro system: Using Twitter data to link complaints to space</a>. RecordArtículo de revistaPublishedGeografíaLa versión registrada de este artículo, publicado por primera vez en Sustainable Cities and Society, Volume 64, 2021, 102530, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.scs.2020.102530ElsevierOsorio-Arjona, JoaquínHorak, JiriSvoboda, RadekGarcía-Ruiz, YolandaSustainable Cities and Societybibliuned:DptoGEO-FGH-Articulos-Josorio-0002http://e-spacio.uned.es/fez/view/bibliuned:DptoGEO-FGH-Articulos-Josorio-000264engOsorio_Arjona_Joaquin_Social_media_semantic.pdfpresmd_Osorio_Arjona_Joaquin_Social_media_semantic.xml2210-6707; eISSN: 2210-6715bibliuned:DptoGEO-FGH-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Geografía. (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsOsorio-ArjonaAcceso abiertohttps://doi.org/10.1016/j.scs.2020.1025300.5116594431982016-07-07T00:00:00Z1002021-07-16T19:16:17Z2021-07-16T19:16:17ZComputational Framework for the Assesment of New Forms of Political Organization in Social Mediabibliuned:master-ETSInformatica-IAA-ParagonSocial media has become a key mechanism for the organization of grassroots movements. In the 2015 Barcelona City Council election, Barcelona en Comú, an emerging grassroots party, was the most voted one. This candidacy was devised by activists involved in the Spanish 15M movement in order to turn citizen outrage into political change. On the one hand, the 15M movement is based on a decentralized structure. On the other hand, political science literature postulates that parties historically develop oligarchical leadership structures. This tension motivates to examine whether Barcelona en Comú preserved a decentralized structure or adopted a conventional centralized organization. This thesis proposes a computational framework to (1) better identify the Twitter networks of political parties by setting a confidence parameter in a popular community detection algorithm of the state of the art, and (2) analyze each party network by measuring the hierarchical structure, small-world phenomenon and coreness. The evaluation of the framework on the Twitter networks of the parties that ran for this election shows that the extended community detection algorithm effectively set boundaries between party networks. Although most parties consist of one single cluster, in Barcelona en Comú two well-defined groups co-exist: a cluster dominated by the party leader and the collective accounts, and another cluster formed by the movement activists. While the former group is highly centralized like traditional parties, the latter one stands out for its decentralized, cohesive and resilient structure.0Doctoral Thesis2992<a class="citation_author_name" title="Navegar por nombre de Autor de Aragón Asenjo, Pablo" href="/fez/list/author/Aragón Asenjo, Pablo/">Aragón Asenjo, Pablo</a>. (<span class="citation_date">2016</span>). <i><a class="citation_title" title="Click para ver : Computational Framework for the Assesment of New Forms of Political Organization in Social Media" href="/fez/view/bibliuned:master-ETSInformatica-IAA-Paragon">Computational Framework for the Assesment of New Forms of Political Organization in Social Media</a></i> Master Thesis, <span class="citation_publisher">Universidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.</span>Recordmaster TesisPublishedIngeniería InformáticaUniversidad Nacional de Educación a Distancia (España). Escuela Técnica Superior de Ingeniería Informática. Departamento de Inteligencia Artificial.Aragón Asenjo, PabloKaltenbrunner, AndreasSarro Baro, Luis Manuelbibliuned:master-ETSInformatica-IAA-Paragonhttp://e-spacio.uned.es/fez/view/bibliuned:master-ETSInformatica-IAA-ParagonengAragon_Asenjo_Pablo_TFM.pdfpresmd_Aragon_Asenjo_Pablo_TFM.xmlbibliuned:master-ETSInformatica-IAAbibliuned:Settrabajosfindemasterbibliuned:SetopenaireMáster Universitario en I.A. Avanzada: Fundamentos, Métodos y Aplicaciones (UNED)Set de items trabajo fin de másterSet de openaireAragón AsenjoAcceso abierto0.5116594434232024-01-01T00:00:00Z42024-02-21T14:36:48Z2024-02-21T14:36:48ZAssessing matrix solid phase dispersion extraction strategies for determining bisphenols and phthalates in gilthead sea bream samplesbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-007Microplastics (MPs) and nanoplastics (NPs) are widely spread in the environment, generating significant concern due to their potential impact on environmental health. Marine species usually ingest plastic fragments, mistaking them for food. Many toxic compounds, such as plastic additives that are not chemically bound to the plastic matrix, can be released from MPs and NPs and reach humans via the food chain. This paper highlights the development and validation of a straightforward solid–liquid extraction clean-up procedure in combination with a matrix solid-phase dispersion method using high-performance liquid chromatography coupled with mass spectrometry (HPLC-MS) detection, enabling facile, precise, and reliable identification and quantitation of a total of six bisphenols and phthalates in gilthead sea breams. Under the optimized conditions, the developed method showed good linearity (R2 > 0.993) for all target compounds. The recoveries obtained were between 70 and 92%. The relative standard deviations (RSDs) for reproducibility (inter-day) and repeatability (intra-day) were less than 9% and 10%, respectively. The limit of detection (LOD) and limit of quantification (LOQ) for the target compounds ranged from 0.11 to 0.68 µg/kg and from 0.37 to 2.28 µg/kg, respectively. A new, efficient extraction methodology for the determination of BPA, BPS, BPF, DBP, DEP, and DHEP in gilthead seabream has been optimized and validated.0352<a class="citation_author_name" title="Navegar por nombre de Autor de Dulce L. Soliz" href="/fez/list/author/Dulce L. Soliz/">Dulce L. Soliz</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Garcinuño, Rosa María" href="/fez/list/author/Garcinuño, Rosa María/">Garcinuño, Rosa María</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua González, Gema" href="/fez/list/author/Paniagua González, Gema/">Paniagua González, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Bravo, Juan Carlos" href="/fez/list/author/Bravo, Juan Carlos/">Bravo, Juan Carlos</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> . (<span class="citation_date">2024</span>) <a class="citation_title" title="Click para ver : Assessing matrix solid phase dispersion extraction strategies for determining bisphenols and phthalates in gilthead sea bream samples" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-007">Assessing matrix solid phase dispersion extraction strategies for determining bisphenols and phthalates in gilthead sea bream samples</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Foods, está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/foods13030413MDPIDulce L. SolizGarcinuño, Rosa MaríaPaniagua González, GemaBravo, Juan CarlosFernández Hernando, PilarFoods 2024, 13(3), 413bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-007http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-007313engPaniagua_Gonz__lez_Gema__sea_bream_samples.pdfpresmd_Paniagua_Gonz__lez_Gema__sea_bream_samples.xml2304-8158bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0/Licencia Creative CommonsDulce LAcceso abiertohttps://doi.org/10.3390/foods130304130.5116594434232008-06-15T00:00:00Z32024-03-13T12:21:58Z2024-03-13T12:21:58ZDetermination of digoxin in serum samples using a flow-through fluorosensor based on a molecularly imprinted polymerbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0008This work describes the development of a competitive flow-through FIA assay for digoxin using a molecularly imprinted polymer (MIP) as the recognition phase. In previous work, a number of non-covalent imprinted polymers were synthesised by “bulk” polymerisation. The digoxin binding and elution characteristics of these MIPs were then evaluated to obtain a highly selective material for integration into a sensor. The optimum MIP was synthesised by photo-initiated polymerisation of a mixture containing digoxin, MAA, EDGMA and AIBN in acetonitrile. The bulk polymer was ground and sieved and the template removed by Soxhlet extraction in MeOH/ACN. The MIP was packed into a flow cell and placed in a spectrofluorimeter to integrate the reaction and detection systems. The physical and chemical variables involved in digoxin determination by the sensor (nature and concentration of solution, flow rates, etc.) were optimised. Binding with the non-imprinted polymer (NIP) was also analysed. The new fluorosensor showed high selectivity and sensitivity, a detection limit of 1.7 × 10−2 μg l−1, and high reproducibility (R.S.D. of 1.03% and 1.77% for concentrations of 1.0 × 10−3 and 4.0 × 10−3 mg l−1, respectively). Selectivity was tested by determining the cross-reactivity of several compounds with structures analogous to digoxin. Under the assay conditions used, in which the potential interfering compounds were in concentrations 100 times higher than that of the analyte, no interference was recorded. The proposed fluorosensor was successfully used to determine digoxin concentration of human serum samples.0252<a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua González, Gema" href="/fez/list/author/Paniagua González, Gema/">Paniagua González, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Durand Alegría, J. S." href="/fez/list/author/Durand Alegría, J. S./">Durand Alegría, J. S.</a> . (<span class="citation_date">2008</span>) <a class="citation_title" title="Click para ver : Determination of digoxin in serum samples using a flow-through fluorosensor based on a molecularly imprinted polymer" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0008">Determination of digoxin in serum samples using a flow-through fluorosensor based on a molecularly imprinted polymer</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Biosensors and Bioelectronics, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.bios.2008.01.018ElsevierPaniagua González, GemaFernández Hernando, PilarDurand Alegría, J. S.Biosensors and Bioelectronicsbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0008http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0008175417581123engPaniagua_Gonz__lez_Gema__Determination_of_digo.pdfpresmd_Paniagua_Gonz__lez_Gema__Determination_of_digo.xml0956-5663 - eISSN 1873-4235bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/Licencia Creative CommonsPaniagua GonzálezAcceso abiertohttps://doi.org/10.1016/j.bios.2008.01.0180.51165944342332024-02-21T04:39:13Z2024-02-22T02:35:28ZCombination of Liquid Chromatography with Multivariate CurveResolution-Alternating Least-Squares (MCR-ALS) in the Quantitationof Polycyclic Aromatic Hydrocarbons Present in Paprika Samplesbibliuned:DptoCA-FCIE-Articulos-Omonago-0010This work presents a strategy for quantitating polycyclic aromatic hydrocarbons (PAHs) in smoked paprikasamples. For this, a liquid chromatographic method withfluorimetric detection (HPLC-FLD) was optimized. To resolve some interference co-eluting with the target analytes, the second-order multivariate curve resolution-alternating least-squares (MCR-ALS) algorithm has been employed combined with this liquid chromatographic method. Among the eight PAHs quantified(fluorene, phenanthrene, anthracene, pyrene, chrysene, benzo[a]anthracene, benzo[b]fluoranthene, and benzo[a]pyrene) byHPLC-FLD, only in the case offluorene, pyrene, and benzo[b]fluoranthene was it necessary to apply the second-order algorithmfor their resolution. Limits of detection and quantitation were between 0.015 and 0.45 mg/kg and between 0.15 and 1.5 mg/kg,respectively. Good recovery results (>80%) for paprika were obtained via the complete extraction procedure, consisting of anextraction from the matrix and the cleanup of the extract by means of silica cartridges. Higher concentrations of chrysene,benzo[a]anthracene, benzo[b]fluoranthene, and benzo[a]pyrene were found in the paprika samples, with respect to the maximalamounts allowed for other spices that are under European Regulation (EU) N°2015/19330322<a class="citation_author_name" title="Navegar por nombre de Autor de Monago Maraña, Olga" href="/fez/list/author/Monago Maraña, Olga/">Monago Maraña, Olga</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Pérez, Rocío L" href="/fez/list/author/Pérez, Rocío L/">Pérez, Rocío L</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Escandar, Graciela M." href="/fez/list/author/Escandar, Graciela M./">Escandar, Graciela M.</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Muñoz de la Peña, Arsenio" href="/fez/list/author/Muñoz de la Peña, Arsenio/">Muñoz de la Peña, Arsenio</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Galeano Díaz, Teresa" href="/fez/list/author/Galeano Díaz, Teresa/">Galeano Díaz, Teresa</a> . () <a class="citation_title" title="Click para ver : Combination of Liquid Chromatography with Multivariate CurveResolution-Alternating Least-Squares (MCR-ALS) in the Quantitationof Polycyclic Aromatic Hydrocarbons Present in Paprika Samples" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0010">Combination of Liquid Chromatography with Multivariate CurveResolution-Alternating Least-Squares (MCR-ALS) in the Quantitationof Polycyclic Aromatic Hydrocarbons Present in Paprika Samples</a>. RecordArtículo de revistaPublishedCienciasThe registered version of this article, first published in the Journal of Agricultural and Food Chemistry, is available online at the publisher's website: Elsevier, https://doi.org/10.1021/acs.jafc.6b03852American Chemical SocietyMonago Maraña, OlgaPérez, Rocío LEscandar, Graciela M.Muñoz de la Peña, ArsenioGaleano Díaz, Teresa1Journal of Agricultural and Food Chemistrybibliuned:DptoCA-FCIE-Articulos-Omonago-0010http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Omonago-0010807382724364engMonago_Marana_Olga_2016_JAFC.pdfpresmd_Monago_Marana_Olga_2016_JAFC.xml0021-8561; eISSN 1520-5118bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0License Creative CommonsMonago MarañaAcceso abiertohttps://doi.org/10.1021/acs.jafc.6b038520.5116594434232009-04-01T00:00:00Z22024-03-19T11:29:17Z2024-03-19T11:29:17ZAn optical sensor for the determination of digoxin in serum samples based on a molecularly imprinted polymer membrane.bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0012This paper reports the synthesis and testing of a molecularly imprinted polymer membrane for digoxin analysis. Digoxin-specific bulk polymer was obtained by the UV initiated co-polymerisation of methacrylic acid and ethylene glycol dimethacrylate in acetonitrile as porogen. After extracting the template analyte, the ground polymer particles were mixed with plasticizer polyvinyl chloride to form a MIP membrane. A reference polymer membrane was prepared from the same mixture of monomers but with no template. The resultant membrane morphologies were examined by scanning electron microscopy. The imprinted membrane was tested as the recognition element in a digoxin-sensitive fluorescence sensor; sensor response was measured using standard solutions of digoxin at concentrations of up to 4 × 10−3 mg L−1. The detection limit was 3.17 × 10−5 mg L−1. Within- and between-day relative standard deviations RSD (n = 5) were in the range 4.5–5.5% and 5.5–6.5% respectively for 0 and 1 × 10−3 mg L−1 digoxin concentrations. A selectivity study showed that compounds of similar structure to digoxin did not significantly interfere with detection for interferent concentrations at 10, 30 and 100 times higher than the digoxin concentration. This simply manufactured MIP membrane showed good recognition characteristics, a high affinity for digoxin, and provided satisfactory results in analyses of this analyte in human serum.0192<a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua González, Gema" href="/fez/list/author/Paniagua González, Gema/">Paniagua González, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Durand Alegría, J. S." href="/fez/list/author/Durand Alegría, J. S./">Durand Alegría, J. S.</a> . (<span class="citation_date">2009</span>) <a class="citation_title" title="Click para ver : An optical sensor for the determination of digoxin in serum samples based on a molecularly imprinted polymer membrane." href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0012">An optical sensor for the determination of digoxin in serum samples based on a molecularly imprinted polymer membrane.</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Analytica Chimica Acta, está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.aca.2009.02.023ElsevierPaniagua González, GemaFernández Hernando, PilarDurand Alegría, J. S.Analytica Chimica Actabibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0012http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0012209212638engPaniagua_Gonz__lez_Gema_An_optical_sensor_for.pdfpresmd_Paniagua_Gonz__lez_Gema_An_optical_sensor_for.xml0003-2670 - eISSN 1873-4324bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/Licencia Creative CommonsPaniagua GonzálezAcceso abiertohttps://doi.org/10.1016/j.aca.2009.02.0230.5116594434232009-01-09T00:00:00Z42024-03-13T14:39:05Z2024-03-13T14:39:05ZA MIP-based flow-through fluoroimmunosensor as an alternative to immunosensors for the determination of digoxin serum samplesbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0011This work reports a comparative study of two automated flow-through fluorosensors for the determination of digoxin in serum samples: an immunosensor with an anti-digoxin polyclonal antibody as the reactive phase permanently immobilized on CPG, and a sensor with a selective reaction system based on a methacrylic molecularly imprinted polymer (MIP) synthesized by bulk polymerisation. The variables affecting the sensitivity and dynamic range of the sensors (e.g., the carrier and elution solutions, flow-rates, pH and reagent concentrations) were optimised and the binding characteristics of their reactive phases compared in a competitive fluorescent assay. Digoxin was reproducibly determined by both sensors at the mg L-1 level (detection limit= 1.20×10-3 mg L-1 and RSD= 4-7% for the immunosensor; detection limit= 1.7×10-5 mg L-1 and RSD= 1-2% for the MIP sensor). No cross reactivity with digoxinrelated compounds was seen for either sensor at a digoxin:interferent ratio of 1:100. The lifetime of the immunosensor was about 50 immunoassays; its shelf life, when unused, is about three months. The lifetime of the MIP sensor was over 18 months. Both sensors were used to determine the digoxin concentration of human serum samples with satisfactory results.0262<a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua González, Gema" href="/fez/list/author/Paniagua González, Gema/">Paniagua González, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Durand Alegría, J. S." href="/fez/list/author/Durand Alegría, J. S./">Durand Alegría, J. S.</a> . (<span class="citation_date">2009</span>) <a class="citation_title" title="Click para ver : A MIP-based flow-through fluoroimmunosensor as an alternative to immunosensors for the determination of digoxin serum samples" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0011">A MIP-based flow-through fluoroimmunosensor as an alternative to immunosensors for the determination of digoxin serum samples</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Analytical and Bioanalytical Chemistry, está disponible en línea en el sitio web del editor: Springer, https://doi.org/10.1007/s00216-008-2584-9SpringerPaniagua González, GemaFernández Hernando, PilarDurand Alegría, J. S.Analytical and Bioanalytical Chemistrybibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0011http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0011963970394engPaniagua_Gonz__lez_Gema_A_MIP_based_flow_throu.pdfpresmd_Paniagua_Gonz__lez_Gema_A_MIP_based_flow_throu.xml1618-2642 - eISSN 1618-2650bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by-nc-nd/4.0/Licencia Creative CommonsPaniagua GonzálezAcceso abiertohttps://doi.org/10.1007/s00216-008-2584-90.5116594434232024-02-01T00:00:00Z22024-03-19T12:49:26Z2024-03-19T12:49:26ZSelective extraction of diazepam and its metabolites from urine samples by a molecularly imprinted solid phase extraction (MISPE) methodbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0013In this research, a molecularly imprinted polymer (MIP) was synthesized by precipitation polymerization using oxazepam (OZ) as a template molecule and was subsequently applied as a selective sorbent for the extraction of diazepam (DZP) and its metabolites in urine samples using an SPE cartridge. OZ, temazepam (TZ), nordiazepam (NZ) and DZP were analyzed in the final extracts by high-performance liquid chromatography with diode array detection (HPLC-DAD). The SPE extraction steps were optimized, and the evaluation of an imprinting factor was carried out. The selectivity of the method for OZ versus structurally related benzodiazepines (BZDs), such as bromazepam (BRZ), tetrazepam (TTZ) and halazepam (HZ), was investigated. Under the optimum conditions, the proposed methodology provided good linearity in the range of 10–1500 ng/mL, with limit of detection values between 13.5 and 21.1 ng/mL and recovery levels for DZP and its metabolites from 89.0 to 93.9% (RSD ≤ 8%) at a concentration level of 1000 ng/mL. The proposed method exhibited good selectivity, precision and accuracy and was applied to the analysis of urine samples from a real case of DZP intake.0252<a class="citation_author_name" title="Navegar por nombre de Autor de Gil Tejedor, Ana María" href="/fez/list/author/Gil Tejedor, Ana María/">Gil Tejedor, Ana María</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Bravo Yagüe, Juan Carlos" href="/fez/list/author/Bravo Yagüe, Juan Carlos/">Bravo Yagüe, Juan Carlos</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Paniagua González, Gema" href="/fez/list/author/Paniagua González, Gema/">Paniagua González, Gema</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Garcinuño Martínez, Rosa María" href="/fez/list/author/Garcinuño Martínez, Rosa María/">Garcinuño Martínez, Rosa María</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Fernández Hernando, Pilar" href="/fez/list/author/Fernández Hernando, Pilar/">Fernández Hernando, Pilar</a> . (<span class="citation_date">2024</span>) <a class="citation_title" title="Click para ver : Selective extraction of diazepam and its metabolites from urine samples by a molecularly imprinted solid phase extraction (MISPE) method" href="/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0013">Selective extraction of diazepam and its metabolites from urine samples by a molecularly imprinted solid phase extraction (MISPE) method</a>. RecordArtículo de revistaPublishedCienciasLa versión registrada de este artículo, publicado por primera vez en Polymers, está disponible en línea en el sitio web del editor: MDPI, https://doi.org/10.3390/polym16050635MDPIGil Tejedor, Ana MaríaBravo Yagüe, Juan CarlosPaniagua González, GemaGarcinuño Martínez, Rosa MaríaFernández Hernando, PilarPolymersbibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0013http://e-spacio.uned.es/fez/view/bibliuned:DptoCA-FCIE-Articulos-Gpaniagua-0013516engPaniagua_Gonz__lez_Gema__Selective_extraction.pdfpresmd_Paniagua_Gonz__lez_Gema__Selective_extraction.xml2073-4360bibliuned:DptoCA-FCIE-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Ciencias Analiticas. ArtículosSet de artículoSet de openairehttps://creativecommons.org/licenses/by/4.0/Licencia Creative CommonsGil TejedorAcceso abiertohttps://doi.org/10.3390/polym160506350.5116594434232021-06-07T00:00:00Z32024-02-29T05:50:17Z2024-02-29T05:50:17ZAn experimental study of fog and cloud computing in CEP-based Real-Time IoT applicationsbibliuned:557-Jmcastillo-0009Internet of Things (IoT) has posed new requirements to the underlying processing architecture, specially for real-time applications, such as event-detection services. Complex Event Processing (CEP) engines provide a powerful tool to implement these services. Fog computing has raised as a solution to support IoT real-time applications, in contrast to the Cloud-based approach. This work is aimed at analysing a CEP-based Fog architecture for real-time IoT applications that uses a publish-subscribe protocol. A testbed has been developed with low-cost and local resources to verify the suitability of CEP-engines to low-cost computing resources. To assess performance we have analysed the effectiveness and cost of the proposal in terms of latency and resource usage, respectively. Results show that the fog computing architecture reduces event-detection latencies up to 35%, while the available computing resources are being used more efficiently, when compared to a Cloud deployment. Performance evaluation also identifies the communication between the CEP-engine and the final users as the most time consuming component of latency. Moreover, the latency analysis concludes that the time required by CEP-engine is related to the compute resources, but is nonlinear dependent of the number of things connected.0242<a class="citation_author_name" title="Navegar por nombre de Autor de Mondragón Ruiz, Giovanny" href="/fez/list/author/Mondragón Ruiz, Giovanny/">Mondragón Ruiz, Giovanny</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Tenorio Trigoso, Alonso" href="/fez/list/author/Tenorio Trigoso, Alonso/">Tenorio Trigoso, Alonso</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Castillo Cara, Manuel" href="/fez/list/author/Castillo Cara, Manuel/">Castillo Cara, Manuel</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Caminero, Blanca" href="/fez/list/author/Caminero, Blanca/">Caminero, Blanca</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Carrión, Carmen" href="/fez/list/author/Carrión, Carmen/">Carrión, Carmen</a> . (<span class="citation_date">2021</span>) <a class="citation_title" title="Click para ver : An experimental study of fog and cloud computing in CEP-based Real-Time IoT applications" href="/fez/view/bibliuned:557-Jmcastillo-0009">An experimental study of fog and cloud computing in CEP-based Real-Time IoT applications</a>. RecordArtículo de revistaPublishedInformáticaThe registered version of this article, first published in Journal of Cloud Computing: Advances, Systems and Applications (2021) 10 Art.32, is available online at the publisher's website: SpringerOpen https://doi.org/ 10.1186/s13677-021-00245-7SpringerOpenMondragón Ruiz, GiovannyTenorio Trigoso, AlonsoCastillo Cara, ManuelCaminero, BlancaCarrión, Carmen1Journal of Cloud Computing: Advances, Systems and Applicationsbibliuned:557-Jmcastillo-0009http://e-spacio.uned.es/fez/view/bibliuned:557-Jmcastillo-00093210engCastillo-Cara_JM-FogVsCloud.pdfpresmd_Castillo-Cara_JM-FogVsCloud.xmleISSN 2192-113Xbibliuned:557bibliuned:Setarticulobibliuned:SetopenaireDepartamento de Informática y Automática (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc/4.0License Creative CommonsMondragón RuizAcceso abiertohttps://doi.org/10.1186/s13677-021-00245-70.5116594434232020-01-01T00:00:00Z82024-01-27T07:47:49Z2024-01-27T07:47:49ZG Protein-Coupled Estrogen Receptor Immunoreactivity in the Rat Hypothalamus Is Widely Distributed in Neurons, Astrocytes, and Oligodendrocytes, Fluctuates during the Estrous Cycle, and Is Sexually Dimorphicbibliuned:DptoPSIBIO-FPSI-Articulos-Pcollado-0004Introduction: The membrane-associated G protein-coupled estrogen receptor 1 (GPER) mediates the regulation by estradiol of arginine-vasopressin immunoreactivity in the supraoptic and paraventricular hypothalamic nuclei of female rats and is involved in the estrogenic control of hypothalamic regulated functions, such as food intake, sexual receptivity, and lordosis behavior. Objective: To assess GPER distribution in the rat hypothalamus. Methods: GPER immunoreactivity was assessed in different anatomical subdivisions of five selected hypothalamic regions of young adult male and cycling female rats: the arcuate nucleus, the lateral hypothalamus, the paraventricular nucleus, the supraoptic nucleus, and the ventromedial hypothalamic nucleus. GPER immunoreactivity was colocalized with NeuN as a marker of mature neurons, GFAP as a marker of astrocytes, and CC1 as a marker of mature oligodendrocytes. Results: GPER immunoreactivity was detected in hypothalamic neurons, astrocytes, and oligodendrocytes. Sex and regional differences and changes during the estrous cycle were detected in the total number of GPER-immunoreactive cells and in the proportion of neurons, astrocytes, and oligodendrocytes that were GPER-immunoreactive. Conclusions: These findings suggest that estrogenic regulation of hypothalamic function through GPER may be different in males and females and may fluctuate during the estrous cycle in females.0282<a class="citation_author_name" title="Navegar por nombre de Autor de Marraudino, Marilena" href="/fez/list/author/Marraudino, Marilena/">Marraudino, Marilena</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Carrillo, Beatriz" href="/fez/list/author/Carrillo, Beatriz/">Carrillo, Beatriz</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Collado, Paloma" href="/fez/list/author/Collado, Paloma/">Collado, Paloma</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de et al." href="/fez/list/author/et al./">et al.</a> . (<span class="citation_date">2020</span>) <a class="citation_title" title="Click para ver : G Protein-Coupled Estrogen Receptor Immunoreactivity in the Rat Hypothalamus Is Widely Distributed in Neurons, Astrocytes, and Oligodendrocytes, Fluctuates during the Estrous Cycle, and Is Sexually Dimorphic" href="/fez/view/bibliuned:DptoPSIBIO-FPSI-Articulos-Pcollado-0004">G Protein-Coupled Estrogen Receptor Immunoreactivity in the Rat Hypothalamus Is Widely Distributed in Neurons, Astrocytes, and Oligodendrocytes, Fluctuates during the Estrous Cycle, and Is Sexually Dimorphic</a>. RecordArtículo de revistaPublishedPsicologíaLa versión registrada de este artículo, publicado por primera vez en Neuroendocrinology, está disponible en línea en el sitio web del editor: S. Karger AG, https://doi.org/10.1159/000509583S. Karger AGMarraudino, MarilenaCarrillo, BeatrizCollado, Palomaet al.Neuroendocrinologybibliuned:DptoPSIBIO-FPSI-Articulos-Pcollado-0004http://e-spacio.uned.es/fez/view/bibliuned:DptoPSIBIO-FPSI-Articulos-Pcollado-00046606777111engCollado_Guirao_Paloma_G-Protein_Coupled_estro_2.pdfpresmd_Collado_Guirao_Paloma_G-Protein_Coupled_estro_2.xml0028-3835, eISSN 1423-0194bibliuned:DptoPSIBIO-FPSI-Articulosbibliuned:Setarticulobibliuned:SetopenaireDepartamento de Psicobiología (UNED). ArtículosSet de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsMarraudinohttps://doi.org/10.1159/0005095830.5116594434232008-01-01T00:00:00Z9772009-04-23T23:44:09ZValidación y comparación de los productos MODIS y AATSR para la detección de focos activos en la España peninsular y Baleares en el año 2003bibliuned:ETFSerieVI-39FBB468-B16C-BA13-ED6B-474EE8009629A partir del tratamiento de los productos MODIS y AATSR para la detección de incendios activos, y de su comparación con las estadísticas oficiales aportadas por la DGB (Dirección
General de la Biodiversidad), se han obtenido los resultados a través de los cuales se ha establecido la fiabilidad de los productos para la España Peninsular y Baleares en el 2003. La eficiencia
se evaluó a través del cálculo de los errores de omisión y comisión, analizando la distribución espacio-temporal. Atendiendo a los resultados obtenidos, es posible afirmar que la fiabilidad mejora
en relación proporcional al tamaño de incendio y tras realizar la comparación entre los productos se concluye que la detección es más precisa a través del sensor MODIS.On the basis of the application of the MODIS and AATSR products for the detection of active fires and
of their comparison with official statistics provided by the DGB (the State Biodiversity Office), results have
been obtained by which the reliability of the products for the Iberian Peninsula and Baleares Islands in 2003
has been established. Their efficiency was evaluated by reckoning the errors of omission and commission,
analysing the space-time distribution. On the basis of the results obtained it is possible to state that reliability
improves in proportion to the size of the fire and, havingmade a comparison of the products, the conclusion
has been reached that detection by theMODIS product ismore accurate.06812<a class="citation_author_name" title="Browse by Author Name for Patricia Oliva" href="/fez/list/author/Patricia Oliva/">Patricia Oliva</a>, <a class="citation_author_name" title="Browse by Author Name for Sara Jurdao" href="/fez/list/author/Sara Jurdao/">Sara Jurdao</a>, <a class="citation_author_name" title="Browse by Author Name for Jesús Martínez" href="/fez/list/author/Jesús Martínez/">Jesús Martínez</a> and <a class="citation_author_name" title="Browse by Author Name for Chuvieco Salinero, Emilio" href="/fez/list/author/Chuvieco Salinero, Emilio/">Chuvieco Salinero, Emilio</a> . (<span class="citation_date">2008</span>) <a class="citation_title" title="Click para ver : Validación y comparación de los productos MODIS y AATSR para la detección de focos activos en la España peninsular y Baleares en el año 2003" href="/fez/view/bibliuned:ETFSerieVI-39FBB468-B16C-BA13-ED6B-474EE8009629">Validación y comparación de los productos MODIS y AATSR para la detección de focos activos en la España peninsular y Baleares en el año 2003</a>. RecordArtículo de revistaPublishedhttp://udcdata.info/068128GeografíaUniversidad Nacional de Educación a Distancia (España). Facultad de Geografía e HistoriaPatricia OlivaSara JurdaoJesús MartínezChuvieco Salinero, Emiliobibliuned:ETFSerieVI-39FBB468-B16C-BA13-ED6B-474EE8009629http://e-spacio.uned.es/fez/view/bibliuned:ETFSerieVI-39FBB468-B16C-BA13-ED6B-474EE8009629spaDocumento.pdfbibliuned:ETFSerieVI2008bibliuned:Setopenairebibliuned:SetarticuloEspacio, tiempo y forma. Serie VI, Geografía. Nueva época. Año 2008, n. 1Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsPatricia OlivaAcceso abierto0.5116594433132022-01-01T00:00:00Z1142023-02-08T05:22:46Z2023-02-08T05:22:46ZCuantificación de errores de posicionado de electrodos electroencefalográficosbibliuned:congresoCIBIM-2022UPMEspana-RpamiesLos intercambios bioquímicos entre las neuronas del cerebro producen una pequeña actividad eléctrica detectable con la colocación de electrodos en el cuero cabelludo. En los últimos años están apareciendo técnicas de estimulación cerebral no inva0ponencia congreso1672<a class="citation_author_name" title="Navegar por nombre de Autor de Pámies Vilá, Rosa" href="/fez/list/author/Pámies Vilá, Rosa/">Pámies Vilá, Rosa</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Fabregat Sanjuan, Albert" href="/fez/list/author/Fabregat Sanjuan, Albert/">Fabregat Sanjuan, Albert</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Ros Alsina, Aina" href="/fez/list/author/Ros Alsina, Aina/">Ros Alsina, Aina</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Pascual Rubio, Vicenç" href="/fez/list/author/Pascual Rubio, Vicenç/">Pascual Rubio, Vicenç</a>(<span class="citation_date">2022</span>) .<a class="citation_title" title="Click para ver : Cuantificación de errores de posicionado de electrodos electroencefalográficos" href="/fez/view/bibliuned:congresoCIBIM-2022UPMEspana-Rpamies">Cuantificación de errores de posicionado de electrodos electroencefalográficos</a>. <b></b>.En: <span class="citation_conference_location">Universidad Politécnica de Madrid</span>. ()RecordPonencia de CongresoPublishedIngeniería MecánicaPámies Vilá, RosaFabregat Sanjuan, AlbertRos Alsina, AinaPascual Rubio, Vicençbibliuned:congresoCIBIM-2022UPMEspana-Rpamieshttps://doi.org/10.5944/bicim2022.300Universidad Politécnica de MadridspaAbs_450_183104.pdfpresmd_Abs_450_183104.xmlbibliuned:congresoCIBIM-2022UPMEspanabibliuned:SetPonenciasbibliuned:SetopenaireCongreso Iberoamericano de Ingeniería Mecánica-CIBIM 2022. UPM-EspañaSet de ponenciasSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsPámies ViláAcceso abierto0.508033834232014-01-01T00:00:00Z3492013-11-21T23:19:27Z2015-08-19T07:05:49ZEl proceso de comprensión en una lengua extranjera: una propuesta para evaluar estrategias de lectura = The reading comprehension process in a foreign language: a proposal to evaluate reading strategiesbibliuned:EducacionXXI-2014-17-1-7130Consideramos que las estrategias para el aprendizaje de la lectura, no son directamente observables pero si detectables y medibles. La evaluación es un proceso que está siendo estudiado desde nuevas perspectivas mucho más conscientes, centradas en e05742<a class="citation_author_name" title="Browse by Author Name for Hidalgo Díez, Eugenio" href="/fez/list/author/Hidalgo Díez, Eugenio/">Hidalgo Díez, Eugenio</a> and <a class="citation_author_name" title="Browse by Author Name for Manzano Díaz, Mirtha" href="/fez/list/author/Manzano Díaz, Mirtha/">Manzano Díaz, Mirtha</a> . (<span class="citation_date">2014</span>) <a class="citation_title" title="Click para ver : El proceso de comprensión en una lengua extranjera: una propuesta para evaluar estrategias de lectura = The reading comprehension process in a foreign language: a proposal to evaluate reading strategies" href="/fez/view/bibliuned:EducacionXXI-2014-17-1-7130">El proceso de comprensión en una lengua extranjera: una propuesta para evaluar estrategias de lectura = The reading comprehension process in a foreign language: a proposal to evaluate reading strategies</a>. RecordArtículo de revistaPublishedEducaciónUniversidad Nacional de Educación a Distancia (España). Facultad de EducaciónHidalgo Díez, EugenioManzano Díaz, Mirthahttp://e-spacio.uned.es/fez/view/bibliuned:EducacionXXI-2014-17-1-7130bibliuned:EducacionXXI-2014-17-1-7130esDocumento.pdfbibliuned:EducacionXXI-2014-17-1bibliuned:Setopenairebibliuned:SetarticuloEducación XX1 : revista de la Facultad de Educación. Año 2014, n. 17-1Set de openaireSet de artículohttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsHidalgo DíezAcceso abierto10.5944/educxx1.17.1.107160.508033834232015-07-01T00:00:00Z7632017-04-06T02:03:41Z2017-04-06T02:03:41ZLa encuesta como un artefacto cultural: aplicación del estudio internacional de autoinforme sobre delincuencia juvenil a adolescentes latinoamericanosbibliuned:revistaDerechoPenalyCriminologia-2015-14-5025Las encuestas están frecuentemente marcadas por el lenguaje, los patrones de pensamiento, la experiencia y las expectativas del entorno cultural de sus diseñadores. Esta tendencia genera algunos problemas —fácilmente detectables— cuando se utili010522<a class="citation_author_name" title="Navegar por nombre de Autor de Rodríguez, Juan Antonio" href="/fez/list/author/Rodríguez, Juan Antonio/">Rodríguez, Juan Antonio</a>, <a class="citation_author_name" title="Navegar por nombre de Autor de Pérez Santiago, Neelie" href="/fez/list/author/Pérez Santiago, Neelie/">Pérez Santiago, Neelie</a> y <a class="citation_author_name" title="Navegar por nombre de Autor de Birkbeck, Christopher" href="/fez/list/author/Birkbeck, Christopher/">Birkbeck, Christopher</a> . (<span class="citation_date">2015</span>) <a class="citation_title" title="Click para ver : La encuesta como un artefacto cultural: aplicación del estudio internacional de autoinforme sobre delincuencia juvenil a adolescentes latinoamericanos" href="/fez/view/bibliuned:revistaDerechoPenalyCriminologia-2015-14-5025">La encuesta como un artefacto cultural: aplicación del estudio internacional de autoinforme sobre delincuencia juvenil a adolescentes latinoamericanos</a>. RecordArtículo de revistaPublishedDerechoUniversidad Nacional de Educacion a Distancia (España). Facultad de DerechoRodríguez, Juan AntonioPérez Santiago, NeelieBirkbeck, ChristopherRevista de Derecho Penal y Criminologíabibliuned:revistaDerechoPenalyCriminologia-2015-14-5025http://e-spacio.uned.es/fez/view/bibliuned:revistaDerechoPenalyCriminologia-2015-14-502522325214spaEncuesta_como_artefacto.pdfpresmd_Encuesta_como_artefacto.xml1132-9955bibliuned:revistaDerechoPenalyCriminologia-2015-14bibliuned:Setarticulobibliuned:SetopenaireRevista de derecho penal y criminología. 3ª época, año 2015, n. 14Set de artículoSet de openairehttp://creativecommons.org/licenses/by-nc-nd/4.0Licencia Creative CommonsRodríguezAcceso abierto0.50803387717887717883023109713111110810106443222211174231781117423178