Grokking Group Multiplication with Cosets

Fuente: arXiv
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Autores principales: Stander, Dashiell, Yu, Qinan, Fan, Honglu, Biderman, Stella
Formato: Preprint
Publicado: 2023
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author Stander, Dashiell
Yu, Qinan
Fan, Honglu
Biderman, Stella
author_facet Stander, Dashiell
Yu, Qinan
Fan, Honglu
Biderman, Stella
contents The complex and unpredictable nature of deep neural networks prevents their safe use in many high-stakes applications. There have been many techniques developed to interpret deep neural networks, but all have substantial limitations. Algorithmic tasks have proven to be a fruitful test ground for interpreting a neural network end-to-end. Building on previous work, we completely reverse engineer fully connected one-hidden layer networks that have ``grokked'' the arithmetic of the permutation groups $S_5$ and $S_6$. The models discover the true subgroup structure of the full group and converge on neural circuits that decompose the group arithmetic using the permutation group's subgroups. We relate how we reverse engineered the model's mechanisms and confirmed our theory was a faithful description of the circuit's functionality. We also draw attention to current challenges in conducting interpretability research by comparing our work to Chughtai et al. [4] which alleges to find a different algorithm for this same problem.
format Preprint
id arxiv_https___arxiv_org_abs_2312_06581
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Grokking Group Multiplication with Cosets
Stander, Dashiell
Yu, Qinan
Fan, Honglu
Biderman, Stella
Machine Learning
Artificial Intelligence
Representation Theory
The complex and unpredictable nature of deep neural networks prevents their safe use in many high-stakes applications. There have been many techniques developed to interpret deep neural networks, but all have substantial limitations. Algorithmic tasks have proven to be a fruitful test ground for interpreting a neural network end-to-end. Building on previous work, we completely reverse engineer fully connected one-hidden layer networks that have ``grokked'' the arithmetic of the permutation groups $S_5$ and $S_6$. The models discover the true subgroup structure of the full group and converge on neural circuits that decompose the group arithmetic using the permutation group's subgroups. We relate how we reverse engineered the model's mechanisms and confirmed our theory was a faithful description of the circuit's functionality. We also draw attention to current challenges in conducting interpretability research by comparing our work to Chughtai et al. [4] which alleges to find a different algorithm for this same problem.
title Grokking Group Multiplication with Cosets
topic Machine Learning
Artificial Intelligence
Representation Theory
url https://arxiv.org/abs/2312.06581