Hi! I am Junjie Chen (陈俊杰), a second-year master’s student in Computer Science and Technology at Tsinghua University. I am fortunate to be supervised by Qingyao Ai and Yiqun Liu. My current research focuses on LLM-based Agent, including Agentic RL, LLM/Agent Evaluation and legal AI applications.
🔥 News
- 2026: Two long papers, Auto-PRE and AgentMediation, have been accepted at AAAI 2026.
- 2025: Enhancing LLM-Based Agents via Global Planning and Hierarchical Execution has been accepted at NCIIP 2025 as the Best Paper.
- 2025: Two long papers, LegalAgentBench and CalibraEval, have been accepted at ACL 2025.
- 2025: LexRAG has been accepted to SIGIR 2025.
🎯 Paper Under Submission
Benchmarking LLM-as-a-Judge for Long-Form Output Evaluation
Junjie Chen, Yuxi Dong, Haitao Li, Weihang Su, Yujia Zhou, Min Zhang, Yiqun LIU, Qingyao Ai
Multi-Source Retrieval and Reasoning for Legal Sentencing Prediction
Junjie Chen, Haitao Li, Qilei Zhang, Zhenghua Li, Ya Zhang, Quan Zhou, Cheng Luo, Yiqun LIU, Min Zhang, Yueyue Wu, Dongsheng Guo, Qingyao Ai
✍️ Publications
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
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
Enhancing LLM-Based Agents via Global Planning and Hierarchical Execution
Junjie Chen, Haitao Li, Jingli Yang, Yiqun Liu, Qingyao Ai
NCIIP 2025, Best Paper
Overview of the NTCIR-18 Automatic Evaluation of LLMs (AEOLLM) Task
Junjie Chen, Haitao Li, Zhumin Chu, Yiqun Liu, Qingyao Ai
NTCIR-18
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
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
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
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
🏆 Honors and Awards
- 2026 Siebel Scholarship
- 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.
📖 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.
- Graduated as a Top 1% student in my grade.
- Beijing Outstanding Graduate.
- Three-time First-Class Scholarship recipient (2021, 2022, 2023).