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Papers for March 21, 2026 - machine learning (Search: "null")

1 papers found
Not All Features Are Created Equal: A Mechanistic Study of Vision-Language-Action Models
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9.0/10

Bryce Grant, Xijia Zhao, Peng Wang 3/19/2026 arxiv

machine learning

Vision-Language-Action (VLA) models combine perception, language, and motor control in a single architecture, yet how they translate multimodal inputs into actions remains poorly understood. We apply activation injection, sparse autoencoders (SAEs), and linear probes to six models spanning 80M--7B p...

Keywords: vision-language-action, activation injection, sparse autoencoder, mechanistic interpretability, robotics, VLM, causal probing, Action Atlas
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