@inproceedings{brown-etal-2023-understanding,
title = "Understanding the Inner-workings of Language Models Through Representation Dissimilarity",
author = "Brown, Davis and
Godfrey, Charles and
Konz, Nicholas and
Tu, Jonathan and
Kvinge, Henry",
editor = "Bouamor, Houda and
Pino, Juan and
Bali, Kalika",
booktitle = "Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing",
month = dec,
year = "2023",
address = "Singapore",
publisher = "Association for Computational Linguistics",
url = "https://aclanthology.org/2023.emnlp-main.403",
doi = "10.18653/v1/2023.emnlp-main.403",
pages = "6543--6558",
abstract = "As language models are applied to an increasing number of real-world applications, understanding their inner workings has become an important issue in model trust, interpretability, and transparency. In this work we show that representation dissimilarity measures, which are functions that measure the extent to which two model{'}s internal representations differ, can be a valuable tool for gaining insight into the mechanics of language models. Among our insights are: (i) an apparent asymmetry in the internal representations of model using SoLU and GeLU activation functions, (ii) evidence that dissimilarity measures can identify and locate generalization properties of models that are invisible via in-distribution test set performance, and (iii) new evaluations of how language model features vary as width and depth are increased. Our results suggest that dissimilarity measures are a promising set of tools for shedding light on the inner workings of language models.",
}
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<abstract>As language models are applied to an increasing number of real-world applications, understanding their inner workings has become an important issue in model trust, interpretability, and transparency. In this work we show that representation dissimilarity measures, which are functions that measure the extent to which two model’s internal representations differ, can be a valuable tool for gaining insight into the mechanics of language models. Among our insights are: (i) an apparent asymmetry in the internal representations of model using SoLU and GeLU activation functions, (ii) evidence that dissimilarity measures can identify and locate generalization properties of models that are invisible via in-distribution test set performance, and (iii) new evaluations of how language model features vary as width and depth are increased. Our results suggest that dissimilarity measures are a promising set of tools for shedding light on the inner workings of language models.</abstract>
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%0 Conference Proceedings
%T Understanding the Inner-workings of Language Models Through Representation Dissimilarity
%A Brown, Davis
%A Godfrey, Charles
%A Konz, Nicholas
%A Tu, Jonathan
%A Kvinge, Henry
%Y Bouamor, Houda
%Y Pino, Juan
%Y Bali, Kalika
%S Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
%D 2023
%8 December
%I Association for Computational Linguistics
%C Singapore
%F brown-etal-2023-understanding
%X As language models are applied to an increasing number of real-world applications, understanding their inner workings has become an important issue in model trust, interpretability, and transparency. In this work we show that representation dissimilarity measures, which are functions that measure the extent to which two model’s internal representations differ, can be a valuable tool for gaining insight into the mechanics of language models. Among our insights are: (i) an apparent asymmetry in the internal representations of model using SoLU and GeLU activation functions, (ii) evidence that dissimilarity measures can identify and locate generalization properties of models that are invisible via in-distribution test set performance, and (iii) new evaluations of how language model features vary as width and depth are increased. Our results suggest that dissimilarity measures are a promising set of tools for shedding light on the inner workings of language models.
%R 10.18653/v1/2023.emnlp-main.403
%U https://aclanthology.org/2023.emnlp-main.403
%U https://doi.org/10.18653/v1/2023.emnlp-main.403
%P 6543-6558
Markdown (Informal)
[Understanding the Inner-workings of Language Models Through Representation Dissimilarity](https://aclanthology.org/2023.emnlp-main.403) (Brown et al., EMNLP 2023)
ACL