Hi! I am Junjie Chen (陈俊杰).

I am now a first year master student at Tsinghua University. I am fortunate to be supervised by Qingyao Ai and Yiqun Liu.

Education

• 2024-present, Master student, Computer Science and Technology, Tsinghua University.
• 2020-2024, B.E., Computer Science and Technology, Beijing University of Aeronautics and Astronautics.
  • Graduate as the Top 1 student in my grade.
  • Beijing Outstanding Graduate.
  • Three times First-Class Scholarship(2021, 2022, 2023).

Honors and Awards

• 2025 Tsinghua University Comprehensive Scholarship: First Prize, 1/63.
• 2025 Outstanding Communist Youth League Member of Tsinghua University.
• 2024 Excellent Graduate of Beijing.
• 2023 Special Award of Xiaomi Scholarship.
• 2023 Highest Undergraduate Honor Shen Yuan medal.
• 2023 Mathematical Contest in Modeling: Meritorious Winner.
• 2022 China Undergraduate Mathematical Contest in Modeling: First Prize of Beijing.
• 2022 China National Scholarship.
• 2021 China National Scholarship.

Publications

• Auto-PRE: An Automatic and Cost-Efficient Peer-Review Framework for Language Generation Evaluation
  Junjie Chen, Weihang Su, Zhumin Chu, Haitao Li, Yujia Zhou, Dingbo Yuan, Xudong Wang, JUN ZHOU, Yiqun LIU, Min Zhang, Shaoping Ma, Qingyao Ai
  (AAAI 2026 Main, Long Paper, CCF-A)
  [Paper][Code]

• Simulating Dispute Mediation with LLM-Based Agents for Legal Research
  Junjie Chen, Haitao Li, Minghao Qin, Yujia Zhou, Yanxue Ren, Wuyue Wang, Yiqun Liu, Yueyue Wu, Qingyao Ai
  (AAAI 2026 Main, Long Paper, CCF-A)
  [Paper][Code]

• Enhancing LLM-Based Agents via Global Planning and Hierarchical Execution
  Junjie Chen, Haitao Li, Jingli Yang, Yiqun Liu, Qingyao Ai
  (NCIIP 2025, Best Paper)
  [Paper][Code]

• Overview of the NTCIR-18 Automatic Evaluation of LLMs (AEOLLM) Task
  Junjie Chen, Haitao Li, Zhumin Chu, Yiqun Liu, Qingyao Ai
  (NTCIR-18)
  [Paper][Code]

• LegalAgentBench: Evaluating LLM Agents in Legal Domain
  Haitao Li*, Junjie Chen*, Jingli Yang, Qingyao Ai, Wei Jia, Youfeng Liu, Kai Lin, Yueyue Wu, Guozhi Yuan, Yiran Hu, Wuyue Wang, Yiqun Liu, Minlie Huang (* Equal contribution)
  (ACL 2025 Main, Long Paper, CCF-A)
  [Paper][Code]

• Calibraeval: Calibrating prediction distribution to mitigate selection bias in llms-as-judges.
  Haitao Li, Junjie Chen, Qingyao Ai, Zhumin Chu, Yujia Zhou, Qian Dong, Yiqun Liu
  (ACL 2025 Main, Long Paper, CCF-A)
  [Paper][Code]

• Llms-as-judges: a comprehensive survey on llm-based evaluation methods
  Haitao Li, Qian Dong, Junjie Chen, Huixue Su, Yujia Zhou, Qingyao Ai, Ziyi Ye, Yiqun Liu
  [Paper]

• LexRAG: Benchmarking Retrieval-Augmented Generation in Multi-Turn Legal Consultation Conversation
  Haitao Li, Yifan Chen, Yiran Hu, Qingyao Ai, Junjie Chen, Xiaoyu Yang, Jianhui Yang, Yueyue Wu, Zeyang Liu, Yiqun Liu
  (SIGIR 2025, Long Paper, CCF-A)
  [Paper][Code]