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Hiroyasu Tsukamoto

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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
#machine learning Preprint Sep 2026

Statistical Convergence of Transformer Encoder-Accelerated Robust Reinforcement Learning

Obtaining the optimal action-value function in Markov decision processes is computationally intensive in large state--action spaces. In this study, we present statistically rigorous convergence results for a robust reinforcement learning algorithm warm-started by a transformer-based action-value function prediction, wh...

Suman Banerjee, Hiroyasu Tsukamoto · 0 citations

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