Author

Xuanren Chen

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Preprint Nov 2026

BLPO: Beyond-Local Policy Optimization for Long-Horizon LLM Agents

Long-horizon tasks require large language model (LLM) agents to coordinate interdependent actions, a capability central to automating complex workflows. Stepwise group-based reinforcement learning provides finer credit than trajectory-level supervision, but reliable comparisons must account for differences in interacti...

Xuan-Ren Chen, Chong-Yang Tao, Wen-Peng Hu et al. · 0 citations

#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