Author

Charles Quan

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Jul 2026

Evidence-in-the-Loop: Trace-Driven Optimization for Customer-Service LLM Agents

The paper contributes three reusable deployment patterns: hybrid RAG evidence construction, multi-channel retrieval and reranking produce auditable FAQ candidates, and trace-driven RAG and reranker improvement, where reranker fine-tuning is evaluated not only for in-domain gain but also for forgetting risk.

Chunming Wu, Dafei Qiu, Congde Yuan et al. · arXiv.org · 0 citations