activity
20242026
collaborators

16 papers

cs.LG2026

Start Classifying: Categorical Critics for LLM Reinforcement Learning

Zhijian Zhou, Long Li, Xuan Zhang +7

Proximal Policy Optimization (PPO) for large language models typically trains its critic by mean-squared-error (MSE) regression on scalar value targets. Although scalar MSE is stat…

cs.CL2026

Tencent WorkBuddy Bench: A Multi-Domain Coding-Agent Benchmark with Contamination-Resistant Task Construction

Tencent WorkBuddy Bench Team, Siqi Cai, Shaopeng Chen +35

We introduce Tencent WorkBuddy Bench, a multi-domain evaluation suite for coding agents; this report documents its construction methodology, scoring protocol, and a cross-model lea…

cs.AI2026

Internalizing the Future: A Unified Agentic Training Paradigm for World Model Planning

Xuan Zhang, Zhijian Zhou, Lingfeng Qiao +6

Large language model (LLM) agents have demonstrated strong capability in sequential decision-making, yet they remains fundamentally reactive in long-horizon tasks. Unlike humans wh…

cs.LG2026

MHPO: Modulated Hazard-aware Policy Optimization for Stable Reinforcement Learning

Hongjun Wang, Wei Liu, Weibo Gu +2

Regulating the importance ratio is critical for the training stability of Group Relative Policy Optimization (GRPO) based frameworks. However, prevailing ratio control methods, suc…

cs.CL2026

SmartSnap: Proactive Evidence Seeking for Self-Verifying Agents

Shaofei Cai, Yulei Qin, Haojia Lin +10

Agentic reinforcement learning (RL) holds great promise for the development of autonomous agents under complex GUI tasks, but its scalability remains severely hampered by the verif…

cs.AI2025

Youtu-Agent: Scaling Agent Productivity with Automated Generation and Hybrid Policy Optimization

Yuchen Shi, Yuzheng Cai, Siqi Cai +15

Existing Large Language Model (LLM) agent frameworks face two significant challenges: high configuration costs and static capabilities. Building a high-quality agent often requires…