Publicación: Remote Sensing Image Classification Using CNNs With Balanced Gradient for Distributed Heterogeneous Computing
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2022
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info:eu-repo/semantics/restrictedAccess
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IEEE
Resumen
Land-cover classification methods are based on the processing of large image volumes to accurately extract representative features. Particularly, convolutional models provide notable characterization properties for image classification tasks. Distributed learning mechanisms on high-performance computing platforms have been proposed to speed up the processing, while achieving an efficient feature extraction. High-performance computing platforms are commonly composed of a combination of central processing units (CPUs) and graphics processing units (GPUs) with different computational capabilities. As a result, current homogeneous workload distribution techniques for deep learning (DL) become obsolete due to their inefficient use of computational resources. To address this, new computational balancing proposals, such as heterogeneous data parallelism, have been implemented. Nevertheless, these techniques should be improved to handle the peculiarities of working with heterogeneous data workloads in the training of distributed DL models. The objective of handling heterogeneous workloads for current platforms motivates the development of this work. This letter proposes an innovative heterogeneous gradient calculation applied to land-cover classification tasks through convolutional models, considering the data amount assigned to each device in the platform while maintaining the acceleration. Extensive experimentation has been conducted on multiple datasets, considering different deep models on heterogeneous platforms to demonstrate the performance of the proposed methodology.
Descripción
The registered version of this article, first published in “IEEE Geoscience and Remote Sensing Letters, vol. 19, 2022", is available online at the publisher's website: IEEE, https://doi.org/10.1109/LGRS.2022.3173052
La versión registrada de este artículo, publicado por primera vez en “IEEE Geoscience and Remote Sensing Letters, vol. 19, 2022", está disponible en línea en el sitio web del editor: IEEE, https://doi.org/10.1109/LGRS.2022.3173052
Categorías UNESCO
Palabras clave
distributed computing, heterogeneous computing, image classification, remote sensing
Citación
S. Moreno-Álvarez, M. E. Paoletti, G. Cavallaro, J. A. Rico and J. M. Haut, "Remote Sensing Image Classification Using CNNs With Balanced Gradient for Distributed Heterogeneous Computing," in IEEE Geoscience and Remote Sensing Letters, vol. 19, pp. 1-5, 2022, Art no. 3512205, doi: 10.1109/LGRS.2022.3173052
Centro
Facultades y escuelas::E.T.S. de Ingeniería Informática
Departamento
Lenguajes y Sistemas Informáticos