I am a Ph.D. student at the School of Computer Science, Peking University (北京大学计算机学院), advised by Prof. Lu Zhang. I obtained my M.S. degree from the School of Software and Microelectronics, Peking University (北京大学软件与微电子学院) in 2022 and my B.S. degree from Guangzhou University of Chinese Medicine in 2019.

My research focuses on code intelligence, specifically building smarter code language models by integrating programming language structures, enhancing model understanding of software evolution, and improving dataset quality for code tasks. I have published 20+ papers at top-tier venues including ICSE, ASE, ACL, TSE, and TOSEM (all CCF-A).

I have interned at ByteDance, Kuaishou, and Huawei. If you are interested in collaboration, please feel free to email me at liangqy@pku.edu.cn.

🔥 News

• 2025.08: Several of our papers have been accepted by TOSEM and TSE, covering research on code generation, code editing, and code embedding.
• 2025.07: Our paper on the grammar-based code representation has been accepted to ACL 2025 (Findings).
• 2025.04: Our paper on the code updating task for the XML-SQL program has been accepted to TOSEM.

📝 Publications

1. [TSE'25] Condor: A Code Discriminator Integrating General Semantics with Code Details. [Data] CCF-A
   Qingyuan Liang, Zhao Zhang, Chen Liu, Zeyu Sun, Wenjie Zhang, Yizhou Chen, Zixiao Zhao, Qi Luo, Wentao Wang, Yanjie Jiang, Yingfei Xiong, Lu Zhang
   IEEE Transactions on Software Engineering
2. [TSE'25] Directional Diffusion-Style Code Editing Pre-training. [CODE] CCF-A
   Qingyuan Liang, Zeyu Sun, Qihao Zhu, Junhao Hu, Yifan Zhao, Yizhou Chen, Mingxuan Zhu, Guoqing Wang, Lu Zhang.
   IEEE Transactions on Software Engineering
3. [TOSEM'25] Bipartite-Grammar Aware Pretraining for XML-SQL Code Updating. [CODE] CCF-A
   Qingyuan Liang, Zeyu Sun, Qihao Zhu, Yifan Zhao, Zhihao Gong, Guoqing Wang, Yizhou Chen, Lu Zhang, Guangtai Liang, Qianxiang Wang.
   ACM Transactions on Software Engineering and Methodology
4. [ACL'25-Finding] Grammar-Based Code Representation: Is It a Worthy Pursuit for LLMs? [CODE] CCF-A
   Qingyuan Liang, Zhao Zhang, Zeyu Sun, Zheng Lin, Qi Luo, Yueyi Xiao, Yizhou Chen, Yuqun Zhang, Haotian Zhang, Lu Zhang, Bin Chen, Yingfei Xiong.
   The 63rd Annual Meeting of the Association for Computational Linguistics
5. [SCIS] CupCleaner: A Hybrid Data Cleaning Approach for Comment Updating. [CODE] CCF-A
   Qingyuan Liang, Zeyu Sun, Qihao Zhu, Junhao Hu, Yifan Zhao, Yakun Zhang, Lu Zhang.
   Science China Information Sciences
6. [TOSEM'25] Do Advanced Language Models Eliminate the Need for Prompt Engineering in Software Engineering? CCF-A
   Guoqing Wang, Zeyu Sun, Sixiang Ye, Zhihao Gong, Yizhou Chen, Yifan Zhao, Qingyuan Liang, Dan Hao.
   ACM Transactions on Software Engineering and Methodology
7. [TOSEM'25] From Cryptic to Clear - Training on LLM Explanations to Detect Smart Contract Vulnerabilities. CCF-A
   Yizhou Chen, Zeyu Sun, Guoqing Wang, Qingyuan Liang, Xiao Yu, Dan Hao.
   ACM Transactions on Software Engineering and Methodology
8. [TSE'25] Prompt alchemy: Automatic prompt refinement for enhancing code generation. CCF-A
   Sixiang Ye, Zeyu Sun, Guoqing Wang, Liwei Guo, Qingyuan Liang, Zheng Li, Yong Liu
   IEEE Transactions on Software Engineering
9. [ICSE'24] GrammarT5: Grammar-Integrated Pretrained Encoder-Decoder Neural Model for Code. CCF-A
   Qihao Zhu, Qingyuan Liang, Zeyu Sun, Yingfei Xiong, Lu Zhang.
   46th International Conference on Software Engineering
10. [ASE'24] Spotting Code Mutation for Predictive Mutation Testing. CCF-A
    Yifan Zhao, Yizhou Chen, Zeyu Sun, Qingyuan Liang, Guoqing Wang, Dan Hao
    Proceedings of the 39th IEEE/ACM International Conference on Automated Software Engineering
11. [TOSEM'24] Automatically Learning a Precise Measurement for Fault Diagnosis Capability of Test Cases. CCF-A
    Yifan Zhao, Zeyu Sun, Guoqing Wang, Qingyuan Liang, Yakun Zhang, Yiling Lou, Dan Hao, Lu Zhang
    ACM Transactions on Software Engineering and Methodology
12. [ISSTA'24] Commit Artifact Preserving Build Prediction. CCF-A
    Guoqing Wang, Zeyu Sun, Yizhou Chen, Yifan Zhao, Qingyuan Liang, Dan Hao
    Proceedings of the 33rd ACM SIGSOFT International Symposium on Software Testing and Analysis
13. [TOSEM'24] Is It Hard to Generate Holistic Commit Message?. CCF-A
    Guoqing Wang, Zeyu Sun, Jinhao Dong, Yuxia Zhang, Mingxuan Zhu, Qingyuan Liang, Dan Hao
    ACM Transactions on Software Engineering and Methodology
14. [IJCAI-ECAI'22] Lyra: A Benchmark for Turducken-Style Code Generation. [PDF] [CODE] CCF-A
    Qingyuan Liang, Zeyu Sun, Qihao Zhu, Wenjie Zhang, Lian Yu, Yingfei Xiong, Lu Zhang.
    Proceedings of the 31st International Joint Conference on Artificial Intelligence and the 25th European Conference on Artificial Intelligence
15. [Sci Sin Inform (Chinese)] A Survey of Deep Learning based Text-to-SQL Generation (in chinese). [PDF] CCF-A
    Qingyuan Liang, Qihao Zhu, Zeyu Sun, Lu Zhang, Wenjie Zhang, Yingfei Xiong, Guangtai Liang, and Lian Yu.
    SCIENTIA SINICA Informationis, SSI

🏆 Awards

• 2025-2026, Outstanding Graduate of Beijing, China
• 2025-2026, Outstanding Graduate of Peking University
• 2025-2026, National Scholarship, Chinese Ministry of Education
• 2025-2026, Merit Student, Peking University
• 2025-2026, Exceptional Award for Academic Innovation, Peking University
• 2022-2023, Award for Scientific Research, Peking University

🎓 Education

• Ph.D. in Computer Science, Peking University, 09/2022 ~ present
• Supervised by Prof. Lu Zhang
• M.S. in Computer Science, Peking University, 09/2019 ~ 06/2022
• Supervised by Prof. Lian Yu
• B.S. in Guangzhou University of Chinese Medicine, 09/2015 ~ 06/2019

💼 Internships

• 2025.08-2026.02, ByteDance, Beijing
• 2024.08-2025.08, Kuaishou Tec., Beijing
• 2021.10-2022.03, Huawei Tec., Beijing