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Qi-Jia He

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#artificial intelligence Preprint Oct 2026

Asynchronous LLM Post-Training: Group-Mass Capping and Convergence Analysis

Asynchronous reinforcement learning (RL) improves the efficiency of large language model post-training but introduces stale rollouts generated by earlier policies. Theoretical understanding of how this staleness affects convergence and how to mitigate its impact remains limited. We derive a convergence bound for GRPO-s...

Qi-Jia He, Rui-Nan Jin, Jun Luo et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Provable Test-Time Scaling for Beam Search in LLM Reasoning

Beam-search-based test-time methods provide an effective way to improve large language model (LLM) performance on long-horizon generation by pruning invalid reasoning paths early, leading to significantly improved reasoning efficiency and more favorable test-time cost scaling. Despite strong empirical success, the theo...

Qi-Jia He, Yu Huang, Yuan Cheng et al. · 0 citations
Jul 2026

CodeRescue: Budget-Calibrated Recovery Routing for Coding Agents

This work forms a post-failure decision as recovery routing over heterogeneous actions and train a supervised router from execution rollouts to make the same router usable under changing budgets, and adds a Conformal Risk Control layer that selects a deployment-time cost penalty without retraining and provides marginal...

Qi-Jia He, Jia-Yi Cheng, Chen-Qian Le et al. · 2 citations
#artificial intelligence Preprint Sep 2026

What Does Multi-Harness RL Learn? Credit Assignment and Portability in Coding Agents

Agent reinforcement learning (RL) increasingly runs through full execution harnesses, and a multi-harness recipe mixes two choices: exposing the policy to several harnesses, and comparing their rewards inside one relative-advantage group. We isolate the second choice in repository-level coding. From one Qwen3-8B superv...

Chen-Qian Le, Jia-Yi Cheng, Qi-Jia He et al. · 1 citation

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