Author

Xin-Lei Zheng

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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 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

Conference Open access Sep 2026

DeepShare: Assurance-Driven Deep Learning Job Scheduling for Multi-Tenant Clusters

DeepShare is a scheduler that uses a continuous tenant-assurance signal to coordinate these decisions at runtime to achieve a more advantageous utilization-QoS trade-off than optimizing quotas, scheduling, and resource sharing independently.

Jing-Hao Wang, Yi-Hang Zhou, Xiao Zhou et al. · IEEE International Conferenc... · 0 citations