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Chen-Leng Chen

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#artificial intelligence Preprint Sep 2026

Forgetting Without Restarting: Execution-State Unlearning for Stateful LLM Agents

Long-running LLM agents are stateful: beyond the transcript they accrete compressed summaries, plaintext memory, pending tool plans, and, under every serving API, a KV cache. Yet today's"forget"operations delete a plaintext memory record and stop, leaving every artifact derived from the revoked information intact. We f...

Chao Yao, Yang-Bo Wei, Zhen Huang et al. · 1 citation
#artificial intelligence Preprint Aug 2026

Competence, Not Accuracy: A Diagnostic for Reference-Free Judge Gates in Skill Optimization

A reference-free judge is formalized as a latent solver, and a closed-form bound on discriminability (ROC-AUC) in the judge's competence and answer-space size is yields the result that the marginal AUC is confounded by item difficulty while a within-question estimator is not.

Chenleng Chen, Yangbo Wei, Chao Yao et al. · 0 citations

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