arXiv Computer Vision By Jinyeong Kim, Junhyeok Kim, Yumin Shim, Joohyeok Kim, Sunyoung Jung, Seong Jae Hwang

Interpreting vision transformers via residual replacement model

Read the original on arXiv Computer Vision →

The paper investigates how vision transformers (ViTs) represent and process visual information by conducting a systematic analysis of 6.6K features across all layers using sparse autoencoders. It introduces the residual replacement model, which substitutes ViT computations with interpretable features in the residual stream, revealing a progression from low-level patterns to high-level semantics and specialized encoding of curves and spatial positions. This model provides a scalable, faithful, and parsimonious circuit that simplifies ViT computations, enabling intuitive understanding of ViT mechanisms and demonstrating its usefulness for debiasing spurious correlations.

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