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Xiangchen Song

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Conference Open access 2026

Mechanistic Interpretability Should Prioritize Feature Consistency in Sparse Autoencoders

This work proposes the Pairwise Dictionary Mean Correlation Coefficient (PW-MCC) as an assignment-based metric to quantify consistency and demonstrates that high levels are achievable with appropriate architectural choices for TopK SAEs on LLM activations with appropriate architectural choices.

Xiangchen Song, Aashiq Muhamed, Yujian Zheng et al. · 0 citations

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