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Author

Hyewon Choi

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#artificial intelligence Preprint Sep 2026

The Linear Representation Hypothesis for Vision-Language-Action Models

A theoretical, signature-based formulation of the LRH for VLA that unifies representations and policies is developed, and a signature generalized linear model for stochastic action chunks is introduced for stochastic action chunks.

Min-hye Jeong, Hyewon Choi, Hiroyasu Tsukamoto et al. · 0 citations
Preprint Aug 2026

SymVD: Symmetric Vision Language Action Distillation for Robot Manipulation

Symmetric VLA Distillation (SymVD), a distillation framework that transfers knowledge from a large VLA teacher to a compact student policy by explicitly exploiting geometric symmetries in manipulation tasks, consistently improves over standard distillation and also outperforms SAC in terms of sample efficiency and gene...

Hyewon Choi, Donggyu Kim, Soojean Han · 0 citations

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