Explaining Classes through Word Attribution

• URL: http://arxiv.org/abs/2108.13653v1
• Date: Tue, 31 Aug 2021 07:22:29 GMT
• Title: Explaining Classes through Word Attribution
• Authors: Samuel R\"onnqvist, Amanda Myntti, Aki-Juhani Kyr\"ol\"ainen, Sampo Pyysalo, Veronika Laippala, Filip Ginter
• Abstract summary: We propose a method for explaining classes using deep learning models and the Integrated Gradients feature attribution technique. We demonstrate the approach on Web register (genre) classification using the XML-R model and the Corpus of Online Registers of English (CORE)
• Score: 1.3898207083070262
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: In recent years, several methods have been proposed for explaining individual predictions of deep learning models, yet there has been little study of how to aggregate these predictions to explain how such models view classes as a whole in text classification tasks. In this work, we propose a method for explaining classes using deep learning models and the Integrated Gradients feature attribution technique by aggregating explanations of individual examples in text classification to general descriptions of the classes. We demonstrate the approach on Web register (genre) classification using the XML-R model and the Corpus of Online Registers of English (CORE), finding that the method identifies plausible and discriminative keywords characterizing all but the smallest class.

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