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Wei-Lin Chen I am a 3rd-year CS PhD student at the University of Virginia, where I am fortunate to be advised by Prof. Yu Meng and supported by UVA Provost’s Fellowship and UVA Computer Science Scholar Fellowship. I build AI to think efficiently and evaluate AI verifiably, from reducing reasoning length (Deep-Thinking Tokens), to grounding model evaluation (Self-Preference) and agent safety (VeriHarm) in verifiable environments. I also spent the past two summers at Google as a Student Researcher, working on efficient test-time reasoning and generalizable agent memory. Google Scholar / LinkedIn / CV / X (Twitter) / Email Last updated: October 31, 2026 |
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Select Research*equal contribution |
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New
Think Deep, Not Just Long: Measuring LLM Reasoning Effort via Deep-Thinking Tokens Wei-Lin Chen, Liqian Peng, Tian Tan, Chao Zhao, Blake JianHang Chen, Ziqian Lin, Alec Go, Yu Meng ICML 2026 arXiv / thread |
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New
VeriHarm-Bench: Measuring Harmful Success in LLM Coding Agents Verifiably Wei-Lin Chen, Zhepei Wei, Xinyu Zhu, Yu-Min Tseng, Tzu-Han Lin, Yu Meng Preprint arXiv / thread |
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Do LLM Evaluators Prefer Themselves for a Reason?
Wei-Lin Chen, Zhepei Wei, Xinyu Zhu, Shi Feng, Yu Meng Preprint arXiv / thread |
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The Surprising Effectiveness of Negative Reinforcement in LLM Reasoning
Xinyu Zhu, Mengzhou Xia, Zhepei Wei, Wei-Lin Chen, Danqi Chen, Yu Meng NeurIPS 2025 arXiv / thread |
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Evaluating Large Language Models as Expert Annotators
Yu-Min Tseng, Wei-Lin Chen, Chung-Chi Chen, Hsin-Hsi Chen COLM 2025 arXiv / thread |
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InstructRAG: Instructing Retrieval-Augmented Generation via Self-Synthesized Rationales
Zhepei Wei, Wei-Lin Chen, Yu Meng ICLR 2025 arXiv / thread |
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Two Tales of Persona in LLMs: A Survey of Role-Playing and Personalization
Yu-Min Tseng\(^*\), Yu-Chao Huang\(^*\), Teng-Yun Hsiao\(^*\),Wei-Lin Chen\(^*\), Chao-Wei Huang, Yu Meng, Yun-Nung Chen EMNLP 2024 Findings arXiv / repo |
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Self-ICL: Zero-Shot In-Context Learning with Self-Generated Demonstrations
Wei-Lin Chen\(^*\), Cheng-Kuang Wu\(^*\), Yun-Nung Chen, Hsin-Hsi Chen EMNLP 2023 arXiv / poster |