Newest papers

The Value of Memory in Language Agents

Zehao Lin, Erenkai Zhu, Helan Hu, Xixuan Hao, Chunyu Li, Kai Chen · 2026 · arXiv (Cornell University)

DOI: 10.48550/arxiv.2610.31303 · cited by 0 works (OpenAlex) · open-access PDF

Japanese

メモリは、過去の経験から有用な区別を将来の決定に移行する言語エージェントを可能にします。その枠組みは、どのような区別が存続するか、限られたエージェントがそれらを使用できるかどうか、そして要求が進化するにつれて回復または修正できるものに依存します。我々は、過去の経験からこの値を継続的な状態、運用利用、およびコスト回復および修正を通じてフォローする決定理論枠組みを開発します。 オリジナルと保存された値は、避けられたタスク損失の単位で表現されます。リスクコスト境界は、利用範囲内で達成可能な回復と保存を記述します。 未知の需要は価値プロファイルを生成し、インタラクティブなフィ

Machine translation (Meta M2M100); the English original follows.

Abstract

Memory enables language agents to carry useful distinctions from past experience into future decisions. Its value depends on which distinctions survive, whether a bounded agent can use them, and what can be recovered or revised as demands evolve. We develop a decision-theoretic framework that follows this value from raw history through persistent state, operational use, and costly recovery and revision. Original and retained value are expressed in units of avoided task loss; risk-cost frontiers describe attainable recovery and preservation across uses. Unknown demand yields value profiles, while interactive feedback changes the distribution of future work. A cost-aware simulation condition and five minimal counterexamples expose the roles of information timing, retrieval access, component interaction, feedback and demand uncertainty. In particular, a pointer with zero mutual information about the answer can still reduce the cost of exact recovery. Diagnostics on LoCoMo, a two-project update task and longitudinal cases exhibit failures of preservation, use and measurement. At fixed retrieved evidence, a saved ledger changes subsequent answers; at fixed agent outputs, an evaluator revision changes scores. The framework connects these distinctions to operational risk bounds and testable principles for allocating memory, preserving recovery options and revising evidence dependencies.

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Topics: Computer science, Counterexample, Task (project management), Pointer (user interface), Value (mathematics), Bounded function

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