Latent Concept-based Explanation of NLP Models

Fuente: arXiv
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Main Authors: Yu, Xuemin, Dalvi, Fahim, Durrani, Nadir, Nouri, Marzia, Sajjad, Hassan
Format: Preprint
Published: 2024
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author Yu, Xuemin
Dalvi, Fahim
Durrani, Nadir
Nouri, Marzia
Sajjad, Hassan
author_facet Yu, Xuemin
Dalvi, Fahim
Durrani, Nadir
Nouri, Marzia
Sajjad, Hassan
contents Interpreting and understanding the predictions made by deep learning models poses a formidable challenge due to their inherently opaque nature. Many previous efforts aimed at explaining these predictions rely on input features, specifically, the words within NLP models. However, such explanations are often less informative due to the discrete nature of these words and their lack of contextual verbosity. To address this limitation, we introduce the Latent Concept Attribution method (LACOAT), which generates explanations for predictions based on latent concepts. Our foundational intuition is that a word can exhibit multiple facets, contingent upon the context in which it is used. Therefore, given a word in context, the latent space derived from our training process reflects a specific facet of that word. LACOAT functions by mapping the representations of salient input words into the training latent space, allowing it to provide latent context-based explanations of the prediction.
format Preprint
id arxiv_https___arxiv_org_abs_2404_12545
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Latent Concept-based Explanation of NLP Models
Yu, Xuemin
Dalvi, Fahim
Durrani, Nadir
Nouri, Marzia
Sajjad, Hassan
Computation and Language
Interpreting and understanding the predictions made by deep learning models poses a formidable challenge due to their inherently opaque nature. Many previous efforts aimed at explaining these predictions rely on input features, specifically, the words within NLP models. However, such explanations are often less informative due to the discrete nature of these words and their lack of contextual verbosity. To address this limitation, we introduce the Latent Concept Attribution method (LACOAT), which generates explanations for predictions based on latent concepts. Our foundational intuition is that a word can exhibit multiple facets, contingent upon the context in which it is used. Therefore, given a word in context, the latent space derived from our training process reflects a specific facet of that word. LACOAT functions by mapping the representations of salient input words into the training latent space, allowing it to provide latent context-based explanations of the prediction.
title Latent Concept-based Explanation of NLP Models
topic Computation and Language
url https://arxiv.org/abs/2404.12545