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News/When Does Reward Teach State? A Hidden-Automaton Instrument and the Group-Language Boundary
arxiv
PublishedJuly 15, 2026 at 4:00 AM
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When Does Reward Teach State? A Hidden-Automaton Instrument and the Group-Language Boundary

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arXiv:2607.11953v1 Announce Type: new Abstract: Does a reinforcement-learning agent that earns high reward represent its task's latent state, or only a reward-correlated shortcut? The question is usually unanswerable: the "true state" is undefined. We make it exactly answerable with a white-box inst

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