π€ I am Junkai Chen (ιδΏε―), a Ph.D. student at Singapore Management University, advised by π¨βπ« Prof. David Lo. I received my masterβs degree at Zhejiang University, where I was very fortunate π to be advised by Prof. β¨ Xing Hu and Prof. π Xin Xia.
So many exciting and interesting \(β§β½β¦)/ things are happening in the era of AI (especially Large Language Models)!, where code seems to be a promising path from uninterpretable output to grounded actions. I am thrilled to be part of this time, and hope to make meaningful contributions to real world problems, with my research at the intersection of Software Engineering and Artificial Intelligence.
π« Reach out to me if you are interested!
News
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    [26/9/25] π Check our lastest preprint for evaluating π secure vide coding of code agents! We surprisingly find that, given the historical context of vulnerability introduction, current code agents still fall into human failures, even inducing other security issue! 
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    π€ Feel free to check and contribute recent SE conference papers at SEConfPaperList γ°οΈ 
Publications
- [Preprint] SecureAgentBench: Benchmarking Secure Code Generation under Realistic Vulnerability Scenarios
 Junkai Chen*, Huihui Huang*, Yunbo Lyu, Junwen An, Jieke Shi, Chengran Yang, Ting Zhang, Haoye Tian, Yikun Li, Zhenhao Li, Xin Zhou, Xing Hu, and David Lo.
- [Preprint] R2Vul: Learning to Reason about Software Vulnerabilities with Reinforcement Learning and Structured Reasoning Distillation
 Martin Weyssow, Chengran Yang, Junkai Chen, Ratnadira Widyasari, Ting Zhang, Huihui Huang, Huu Hung Nguyen, Yan Naing Tun, Tan Bui, Yikun Li, Ang Han Wei, Frank Liauw, Eng Lieh Ouh, Lwin Khin Shar, and David Lo.
- [Preprint] Assessing and Advancing Benchmarks for Evaluating Large Language Models in Software Engineering Tasks
 Xing Hu, Feifei Niu, Junkai Chen, Xin Zhou, Junwei Zhang, Junda He, Xin Xia, and David Lo.
- [TOSEM'25] NLPerturbator: Studying the Robustness of Code LLMs to Natural Language Variations
 Junkai Chen*, Zhenhao Li*, Xing Hu, and Xin Xia.
- [ISSTA'25] Understanding Practitionersβ Expectations on Clear Code Review Comments 
 Junkai Chen*, Zhenhao Li*, Qiheng Mao, Xing Hu, Kui Liu, and Xin Xia.
- [ICSE'25] Reasoning Runtime Behavior of a Program with LLM: How Far Are We? 
 Junkai Chen*, Zhiyuan Pan*, Xing Hu, Zhenhao Li, Ge Li, and Xin Xia.
- [ICSE'24] Code Search is All You Need? Improving Code Suggestions with Code Search 
 Junkai Chen, Xing Hu, Zhenhao Li, Cuiyun Gao, Xin Xia, and David Lo.
 π ACM SIGSOFT Distinguished Paper Award.
* denotes equal contribution.
Awards
- ACM SIGSOFT Distinguished Paper Award., ACM SIGSOFT, 2024
- National Scholarship, Ministry of Education of P.R.C., 2024
- ACM SIGSOFT CAPS Travel Grant, 2025
Services
Program Committee / Journal Reviewer
- 2026: IST, ICSE (Shadow PC), MSR (Junior PC), DL4C@NeurIPS, EASE (AI Models / Data Track)
- 2025: MSR (Junior PC), DL4C@ICLR, LTB@ICPE
Others
- External Reviewer: ICSE, FSE, ASE, TOSEM, MSR, FCS, JSS (Chinese), etc.
- Student Volunteer: Internetware 2023