journal article·2024-04-29Open access

Machine Learning Data Augmentation Strategy for Electron Energy Loss Spectroscopy: Generative Adversarial Networks

Daniel del-Pozo-Bueno, Demie Kepaptsoglou, Quentin M Ramasse, Francesca Peiró, Sònia Estradé

Microscopy and Microanalysis· Volume 30· Issue 2

Abstract

Abstract Recent advances in machine learning (ML) have highlighted a novel challenge concerning the quality and quantity of data required to effectively train algorithms in supervised ML procedures. This article introduces a data augmentation (DA) strategy for electron energy loss spectroscopy (EELS) data, employing generative adversarial networks (GANs). We present an innovative approach, called the data augmentation generative adversarial network (DAG), which facilitates data generation from a very limited number of spectra, around 100. Throughout this study, we explore the optimal configuration for GANs to produce realistic spectra. Notably, our DAG generates realistic spectra, and the spectra produced by the generator are successfully used in real-world applications to train classifiers based on artificial neural networks (ANNs) and support vector machines (SVMs) that have been successful in classifying experimental EEL spectra.
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Research context

OpenAlex topics: Machine Learning in Materials Science · Electron and X-Ray Spectroscopy Techniques · Machine Learning and Data Classification

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

LENS-MIND, Departament d'Enginyeria Electrònica i Biomèdica, Universitat de Barcelona , 1-11 Martí i Franquès, 08028 Barcelona , Spain

Institute of Nanoscience and Nanotechnology (IN2UB), Universitat de Barcelona , 1-11 Martí i Franquès, 08028 Barcelona , Spain

SuperSTEM Laboratory, Sci-Tech Daresbury Campus , Keckwick Lane, Daresbury WA4 4AD , UK

School of Physics, Engineering and Technology, University of York , Newton way, YO10 5DD Heslington , UK

Schools of Chemical and Process Engineering & Physics and Astronomy, Woodhouse Lane, University of Leeds , LS2 9JT Leeds , UK

Funding

Spanish Project · European Union NextGenerationEU/PRTR · MICIIN · ELECMI—ICTS Electron Microscopy for Materials Science · Generalitat de Catalunya · AGAUR agency of the Generalitat de Catalunya · ICREA Academia 2022 grant · UK National Research Facility for Advanced Electron Microscopy · Engineering and Physical Sciences Research Council

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