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
- [4/7/2026] SecureVibeBecnh and SeCuRepair are accepted by ACL 2026 main conference.
- π€ Feel free to check and contribute recent SE conference papers at SEConfPaperList γ°οΈ
Publications
- [ACL'26 Main] SecureVibeBench: 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. - [TOSEM'26] 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.
π₯ Featured by ζ°ζΊε (in Chinese). - [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.
π₯ Included in π€ HuggingFace/JetBrains-Research. - [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 Selected for an ACM SIGSOFT Distinguished Paper Award.
Other Publications
- [ACL'26 Main] SeCuRepair: Semantics-Aligned, Curriculum-Driven, and Reasoning-Enhanced Vulnerability Repair Framework
Chengran Yang, Ting Zhang, Jinfeng Jiang, Xin Zhou, Haoye Tian, Mingzhe Du, Jieke Shi, Junkai Chen, Yikun Li, Eng Lieh Ouh, Lwin Khin Shar, and David Lo. - [ICSE'26 (NIER)] PenForge: On-the-Fly Expert Agent Construction for Automated Penetration Testing
Huihui Huang, Jieke Shi, Junkai Chen, Ting Zhang, Yikun Li, Chengran Yang, Eng Lieh Ouh, Lwin Khin Shar, and David Lo. - [ICSE'26] Out of Distribution, Out of Luck: How Well Can LLMs Trained on Vulnerability Datasets Detect Top 25 CWE Weaknesses?
Yikun Li, Ngoc Tan Bui, Ting Zhang, Chengran Yang, Xin Zhou, Martin Weyssow, Jinfeng Jiang, Junkai Chen, Huihui Huang, Huu Hung Nguyen, Chiok Yew Ho, Jie Tan, Ruiyin Li, Yide Yin, Han Wei Ang, Frank Liauw, Eng Lieh Ouh, Lwin Khin Shar, and David Lo.
* denotes equal contribution.
Awards
- ACM SIGSOFT Distinguished Paper Award., ACM SIGSOFT, 2024
- National Scholarship, Ministry of Education of P.R.C., 2024
- SMU SCIS Research Excellence Award, SMU, 2025
- ACM SIGSOFT CAPS Travel Grant, 2025
Services
Program Committee / Journal Reviewer
- 2026: TOSEM, 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