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Kang Zhou

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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. · 1 citation · ⚡1
#machine learning Preprint Sep 2026

StructRL: Online Structured Reinforcement Learning for Long-Horizon Vision-Language-Action Tasks

Vision-language-action (VLA) models perform well on shorter-horizon manipulation tasks but still struggle with long-horizon tasks that require multiple dependent manipulations from a single command. Online reinforcement learning (RL) can improve these policies through environment interaction, yet many existing methods...

Zi-Yi Yin, Sang-Min Woo, Kang Zhou et al. · 0 citations
Preprint Aug 2026

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

FinPerMA is introduced, an event-grounded benchmark that evaluates personalized memory against frozen longitudinal investor trajectories and shows that summary-based memory often preserves factual details while losing the preference signals needed for personalization; simple retrieval can therefore outperform purpose-b...

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

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