Yifan Wu Postdoctoral Researcher School of Computer Science Peking University

I’m currently on the job market. Please feel free to contact me via email.

Research Interests

My research spans software engineering and system reliability as the following topics:

• AI for Software Engineering: LLM for AIOps, LLM for code.
• Software Engineering for AI: LLM safety/security, AgentOps.

Education

• Peking University 2019.9 - 2025.1   
  Ph.D. in Software Engineering, supervised by Prof. Ying Li
• University of Electronic Science and Technology of China (UESTC) 2015.9 - 2019.6   
  B.E. in Software Engineering

Selected Publications

*corresponding author
Preprint

1. DeLog: An Efficient Log Compression Framework with Pattern Signature Synthesis [arXiv]
   Siyu Yu, Yifan Wu, Junjielong Xu, Ying Fu, Ning Wang, Maoyin Liu, Pancheng Jiang, Xiang Zhang, Tong Jia, Pinjia He, Ying Li
   

Conference

1. [ACL'26] DeepGuard: Secure Code Generation via Multi-Layer Semantic Aggregation [arXiv] CCF-A
   Li Huang, Zhongxin Liu, Yifan Wu, Tao Yin, dong li, Jichao Bi, Nankun Mu, Hongyu Zhang, Meng Yan
   In: 64th Annual Meeting of the Association for Computational Linguistics
2. [ACL'26 Findings] TopoSHIELD: Reshaping the Flow of Malice via Spatio-Temporal Risk-Aware Topological Evolution in Multi-Agent Systems CCF-A
   Ruiyang Huang, Chenxi Wang, tinghe Zhang, Fengrui Liu, Jiayan Sun, Haocheng Wang, Yifan Wu*
   In: 64th Annual Meeting of the Association for Computational Linguistics
3. [ICLR'26] Out of the Memory Barrier: A Highly Memory-Efficient Training System for LLMs with Million-Token Contexts [arXiv] CCF-A
   Wenhao Li, Daohai Yu, Gen Luo, Yuxin Zhang, Yifan Wu, Jiaxin Liu, Ziyang Gong, Zimu Liao, Fei Chao, Rongrong Ji
   In: The Fourteenth International Conference on Learning Representations
4. [ICASSP'26] LogPTR: Variable-Aware Log Parsing with Pointer Network [arXiv] CCF-B
   Yifan Wu, Bingxu Chai, Siyu Yu, Ying Li, Pinjia He, Wei Jiang, Jianguo Li
   In: 2026 IEEE International Conference on Acoustics, Speech and Signal Processing
5. [ICSE-SEIP'26] MagmaScope: Identifying Root-Cause Changes for Emergency Incident in Large-Scale Cloud Infrastructure CCF-A
   Zongyang Li, Ning Wang, Jiliang Liu, Yaping Zhang, Feifan Tong, Zhaoxing Chen, Chan Li, Ming Liu, Xiang Zhang, Yifan Wu, Tong Jia, Ying Li
   In: 48th IEEE/ACM International Conference on Software Engineering: Software Engineering in Practice
6. [ASE'25] CoorLog: Efficient-Generalizable Log Anomaly Detection via Adaptive Coordinator in Software Evolution CCF-A
   Pei Xiao, Chiming Duan, Minghua He, Tong Jia, Yifan Wu, Jing Xu, Gege Gao, Lingzhe Zhang, Weijie Hong, Ying Li, Gang Huang
   In: 40th IEEE/ACM International Conference on Automated Software Engineering
7. [ASE'25] LogAction: Consistent Cross-system Anomaly Detection through Logs via Active Domain Adaptation [arXiv] CCF-A
   Chiming Duan, Minghua He, Pei Xiao, Tong Jia, Xin Zhang, Zhewei Zhong, Xiang Luo, Yan Niu, Lingzhe Zhang, Yifan Wu, Siyu Yu, Weijie Hong, Ying Li, Gang Huang
   In: 40th IEEE/ACM International Conference on Automated Software Engineering
8. [ASE'25] United We Stand: Towards End-to-End Log-based Fault Diagnosis via Interactive Multi-Task Learning [arXiv] CCF-A
   Minghua He, Chiming Duan, Pei Xiao, Tong Jia, Siyu Yu, Lingzhe Zhang, Weijie Hong, Jing Han, Yifan Wu, Ying Li, Gang Huang
   In: 40th IEEE/ACM International Conference on Automated Software Engineering
9. [ISSRE'25] CSLParser: A Collaborative Framework Using Small and Large Language Models for Log Parsing CCF-B
   Weijie Hong, Yifan Wu*, Lingzhe Zhang, Chiming Duan, Pei Xiao, Minghua He, Xixuan Yang and Ying Li
   In: 36th IEEE International Symposium on Software Reliability Engineering
10. [ICSE'25] An Empirical Study on Commit Message Generation using LLMs via In-Context Learning [arXiv] CCF-A
    Yifan Wu, Yunpeng Wang, Ying Li, Wei Tao, Siyu Yu, Haowen Yang, Wei Jiang, Jianguo Li
    In: 47th IEEE/ACM International Conference on Software Engineering
11. [ICPC'25] Log Parsing using LLMs with Self-Generated In-Context Learning and Self-Correction [arXiv] CCF-B
    Yifan Wu, Siyu Yu, Ying Li
    In: 33rd IEEE/ACM International Conference on Program Comprehension
12. [ICASSP'25] ScalaLog: Scalable Log-Based Failure Diagnosis Using LLM CCF-B
    Lingzhe Zhang, Tong Jia, Mengxi Jia, Yifan Wu, Hongyi Liu, Ying Li
    In: 2025 IEEE International Conference on Acoustics, Speech and Signal Processing
13. [ASE'24] Unlocking the Power of Numbers: Log Compression via Numeric Token Parsing [arXiv] CCF-A
    Siyu Yu, Yifan Wu, Ying Li, Pinjia He
    In: 39th IEEE/ACM International Conference on Automated Software Engineering
14. [ECML PKDD'24] MMDL-based Data Augmentation with Domain Knowledge for Time Series Classification CCF-B
    Xiaosheng Li, Yifan Wu, Wei Jiang, Ying Li, Jianguo Li
    In: Joint European Conference on Machine Learning and Knowledge Discovery in Databases
15. [ACL'24] CoCA: Fusing Position Embedding with Collinear Constrained Attention in Transformers for Long Context Window Extending [arXiv] CCF-A
    Shiyi Zhu, Jing Ye, Wei Jiang, Siqiao Xue, Qi Zhang, Yifan Wu, Jianguo Li
    In: 62nd Annual Meeting of the Association for Computational Linguistics
16. [SANER'24] Understanding and Improving Change Risk Detection in Practice CCF-B
    Yifan Wu, Yunpeng Wang, Jianguo Li, Ying Li, Bingxu Chai, Wei Jiang
    In: 2024 IEEE International Conference on Software Analysis, Evolution and Reengineering
17. [SANER'24] OCRCL: Online Contrastive Learning for Root Cause Localization of Business Incidents CCF-B
    Xiaosong Huang, Hongyi Liu, Yifan Wu, Yujin Zhao, Changlong Wu, Songlin Zhang, Ling Jiang, Tong Jia, Ying Li, Zhonghai Wu
    In: 2024 IEEE International Conference on Software Analysis, Evolution and Reengineering
18. [ICSE-SEIP'23] An Empirical Study on Change-induced Incidents of Online Service Systems CCF-A
    Yifan Wu, Bingxu Chai, Ying Li, Bingchang Liu, Jianguo Li, Yong Yang, Wei Jiang
    In: 45th IEEE/ACM International Conference on Software Engineering: Software Engineering in Practice
19. [ESEC/FSE'23] Log Parsing with Generalization Ability under New Log Types CCF-A
    Siyu Yu, Yifan Wu, Zhijing Li, Pinjia He, Ningjiang Chen, Changjian Liu
    In: 31st ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering
20. [ISSRE'23] How to Manage Change-Induced Incidents? Lessons from the Study of Incident Life Cycle CCF-B
    Yujin Zhao, Ling Jiang, Ye Tao, Songlin Zhang, Changlong Wu, Yifan Wu, Tong Jia, Ying Li and Zhonghai Wu
    In: 34th IEEE International Symposium on Software Reliability Engineering
21. [SANER'23] UDA-DP: Unsupervised Domain Adaptation for Software Defect Prediction CCF-B
    Xiaosong Huang, Yifan Wu, Hongyi Liu, Ying Li, Hao Yu, Dadi Guo and Zhonghai Wu
    In: 2023 IEEE International Conference on Software Analysis, Evolution and Reengineering
22. [VLDB'22] ByteGNN: Efficient Graph Neural Network Training at Large Scale CCF-A
    Chenguang Zheng, Hongzhi Chen, Yuxuan Cheng, Zhezheng Song, Yifan Wu, Changji Li, James Cheng, Hao Yang, Shuai Zhang
    In: Proceedings of the VLDB Endowment, Volume 15, Issue 6
23. [ISSRE'21] LogFlash: Real-time Streaming Anomaly Detection and Diagnosis from System Logs for Large-scale Software Systems CCF-B
    Tong Jia, Yifan Wu, Chuanjia Hou, Ying Li
    In: 32nd IEEE International Symposium on Software Reliability Engineering
24. [ISSRE'20] How Far Have We Come in Detecting Anomalies in Distributed Systems? An Empirical Study with a Statement-level Fault Injection Method CCF-B
    Yong Yang, Yifan Wu, Karthik Pattabiraman, Long Wang, Ying Li
    In: 31st IEEE International Symposium on Software Reliability Engineering

Journal

1. [TSC'25] UDA-RCL: Unsupervised Domain Adaptation for Microservice Root Cause Localization Utilizing Multimodal Data CCF-A
   Xiaosong Huang, Hongyi Liu, Yifan Wu, Lingzhe Zhang, Tong Jia, Ying Li, Zhonghai Wu
   In: IEEE Transactions on Services Computing
2. [CSUR'25] A Survey of AIOps in the Era of Large Language Models [arXiv] SCI-Q1
   Lingzhe Zhang, Tong Jia, Mengxi Jia, Yifan Wu, Aiwei Liu, Yong Yang, Zhonghai Wu, Xuming Hu, Philip S. Yu, Ying Li
   In: ACM Computing Surveys
3. [IST'24] XDrain: Effective Log Parsing in Log Streams Using Fixed-depth Forest CCF-B
   Changjian Liu, Yang Tian, Siyu Yu, Donghui Gao, Yifan Wu, Suqun Huang, Xiaochun Hu, Ningjiang Chen
   In: Information and Software Technology
4. [TSC'23] Brain: Log Parsing with Bidirectional Parallel Tree CCF-A
   Siyu Yu, Pinjia He, Ningjiang Chen, Yifan Wu
   In: IEEE Transactions on Services Computing
5. [JSS'23] Self-Supervised Log Parsing Using Semantic Contribution Difference CCF-B
   Siyu Yu, Ningjiang Chen, Yifan Wu, Wensheng Dou
   In: Journal of Systems and Software
6. [Journal of Software'23] Survey on Service Dependency Discovery Technology for Microservice Systems CCF-A
   Qixun Zhang, Yifan Wu, Yong Yang, Tong Jia, Ying Li, Zhonghai Wu
   In: Journal of Software

Academic Services

Program Committee or Review Committee

• 2026: ICSE Shadow, ICSE SEIP, ICSME Industry, KDD, ACMMM, NeurIPS
• 2025: ACL
• 2024: FORGE

Journal Reviewer

• TSE, TOSEM, TCC, IST, JSS, ASEJ, ESWA, KBS