About Me

I am a 2025 master's student in Data Science and Information Technology at the Tsinghua Shenzhen International Graduate School, co-advised by Xinlei Chen and Chao Yu. I received my bachelor's degree from Beijing University of Posts and Telecommunications.

My research focuses on LLM agents and reinforcement learning. My current interests include recursive self-improvement (RSI), credit assignment, and world models; my earlier work covered multi-agent reinforcement learning and multi-UAV systems.

ActionOPD: Distilling Decisions, Not Tokens

Huining Yuan*, Xiangmin Yi*, Zelai Xu, Zixu Wang, Xinlei Chen, Xiao-Ping Zhang, Yu Wang, Chao Yu

Online policy distillation for LLM agents at the semantic action level: aligns student decisions with black-box teacher-sampled actions without teacher token probabilities or a shared tokenizer, yielding 3.3–6.9 point gains on out-of-distribution benchmarks.

arXiv 2026

Verifiable Process Rewards for Agentic Reasoning

Huining Yuan, Zelai Xu, Huaijie Wang, Xiangmin Yi, Jiaxuan Gao, Xiao-Ping Zhang, Yu Wang, Chao Yu, Yi Wu

Turns verifiable task-solving oracles into action-level process rewards, providing dense feedback for long-horizon agentic tasks and outperforming outcome-only rewards (GRPO, VinePPO) in Sokoban, Sudoku, Minesweeper, and τ²-bench.

arXiv 2026

MARSHAL: Incentivizing Multi-Agent Reasoning via Self-Play with Strategic LLMs

Huining Yuan, Zelai Xu, Zheyue Tan, Xiangmin Yi, Mo Guang, Kaiwen Long, Haojia Hui, Boxun Li, Xinlei Chen, Bo Zhao, Xiao-Ping Zhang, Chao Yu, Yu Wang

An end-to-end RL framework where strategic LLMs learn multi-agent reasoning directly from game outcomes through cooperative and competitive self-play, with gains transferring to downstream multi-agent systems like MAD and AutoGen.

ICLR 2026

VS-Bench: Evaluating VLMs for Strategic Abilities in Multi-Agent Environments

Zelai Xu, Zhexuan Xu, Xiangmin Yi, Huining Yuan, Mo Guang, Kaiwen Long, Xinlei Chen, Yi Wu, Chao Yu, Yu Wang

A multimodal benchmark of 10 vision-grounded multi-agent environments (cooperative, competitive, and mixed-motive) evaluating 15 VLMs on perception, reasoning, and decision-making.

CVPR 2026 · Oral

Scalable UAV Multi-Hop Networking via Multi-Agent Reinforcement Learning with Large Language Models

Yanggang Xu, Jirong Zha, Weijie Hong, Xiangmin Yi, Geng Chen, Jianfeng Zheng, Chen-Chun Hsia, Xin Chen

Combines multi-agent reinforcement learning with LLMs for decentralized coordination in scalable UAV multi-hop networks.

IEEE TMC 2026

VolleyBots: A Testbed for Multi-Drone Volleyball Game Combining Motion Control and Strategic Play

Zelai Xu, Ruize Zhang, Chao Yu, Huining Yuan, Xiangmin Yi, Shilong Ji, Chuqi Wang, Wenhao Tang, Feng Gao, Wenbo Ding, Xinlei Chen, Yu Wang

A robot sports testbed where multiple drones cooperate and compete in volleyball under physical contact, integrating high-level strategic play with low-level agile flight control, with zero-shot sim-to-real deployment.

NeurIPS 2025 · D&B

Work Experience

Education

Tsinghua University

M.Eng. in Data Science and Information Technology

Advisors: Xinlei Chen and Chao Yu.

Beijing University of Posts and Telecommunications

B.Eng. in Information Engineering

Honors & Awards

  • 2025Merit Student, Beijing University of Posts and Telecommunications (2024–2025)
  • 2024Merit Student, Beijing University of Posts and Telecommunications (2023–2024)
  • 2023National Scholarship (2022–2023)
  • 2023Outstanding Student Leader, Beijing University of Posts and Telecommunications (2022–2023)
  • 2023Outstanding Individual in Student Organizations, Beijing University of Posts and Telecommunications (2022–2023)