arXiv Computation and Language By Jinkyeong Choi, Chaebin Jeong, Junsung Jeon, Donghyeon Park

KEEPER: Learning Control-Sufficient Textual Memory for Long-Horizon LLM Agents

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The paper introduces KEEPER, a framework for learning control‑sufficient textual memory in long‑horizon large language model agents. It examines four auxiliary objectives that balance information content and update sensitivity, finding that reward‑related prediction yields the best task performance before and after offline reinforcement learning. A claim‑level analysis shows that incorrect claims can persist in memory even when corrective observations are made, highlighting the need to assess error persistence and valid‑information retention alongside task outcomes.

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