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Lifan Guo

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#artificial intelligence Preprint Aug 2026

FinEvo-Bench: A Longitudinal Benchmark for Self-Evolving Agents in Professional Financial Workflows

Agents used over time encounter recurring professional work: each case requires different evidence and judgment, while the underlying workflow can be reused. Benchmarks built from independent tasks cannot reveal whether an agent turns earlier experience into better procedures for later cases. We introduce FinEvo-Bench,...

Bo Deng, Kang Zhou, Li-Fan Guo et al. · 1 citation
#artificial intelligence Preprint Oct 2026

DeFA: Dependency-Guided Failure Attribution for LLM Agents

Errors in LLM agent executions and their visible consequences can be separated by many steps, making decisive-error localization a matter of understanding both step content and step dependencies. We introduce DeFA, a dependency-guided framework for agent failure attribution. DeFA first combines protocol relations and s...

Bo Deng, Xin-Lei Zheng, Yi-Xun Wei et al. · 0 citations
Preprint Aug 2026

FinPerMA: A Theory-Informed, Event-Grounded Personalized-Memory Benchmark for LLM Agents

Large language model (LLM) agents are increasingly used as personalized assistants in high-stakes domains such as financial advising, yet it remains unclear whether they can maintain and update an individualized user model over long horizons. Existing personalized-memory benchmarks primarily test factual retention or r...

Ben Wang, Kang Zhou, Li-Fan Guo et al. · 1 citation
Preprint Aug 2026

Dual-Loop Self-Evolution via Verifiable Emotion Feedback for Multi-Turn Empathetic Dialogue

Large language models have demonstrated conversational capabilities, yet empathetic competence remains challenging. Empathetic support is inherently multi-turn and path-dependent: users disclose concerns gradually, emotions evolve over time, and early responses shape trust and receptivity. Reinforcement learning with v...

Yingfei Wei, Shuo Jiang, Huaixia Dou et al. · 0 citations
Preprint Aug 2026

REDAgentBench: Executable Red Teaming and Faithful Measurement of LLM Agent Systems

RedAgentBench is introduced, an executable framework for autonomous red-teaming and faithful measurement that shows that executable evaluation can improve safety measurement and identify actionable intervention points.

Zixing Chen, Xingyuan Liu, Jie Zhu et al. · 3 citations

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