Belief-State Engine: Augmenting LLMs for Principled Planning Under Partial Observability
It is proved that the LLM paired with the BSE is a sound Markov policy on the belief MDP induced by the underlying POMDP, and inherits the Bellman optimality guarantees of classical POMDP theory, provided the LLM is never exposed to the raw history.
Arnab Chattopadhayay, Debdipta Halder
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