Guangba Yu
Postdoctoral Researcher, CUHK
I am a postdoctoral researcher at ARISE, The Chinese University of Hong Kong, mentored by Prof. Michael R. Lyu. My journey in tech was forged at Sun Yat-sen University, where I earned my Ph.D. and M.Eng under the guidance of Prof. Pengfei Chen. I've also had the privilege of working in industry as a Ph.D. researcher at WeChat, mentored by Yuetang Deng.
But my path began not with code, but with traditional Chinese medicine. I started my academic career at Guangzhou University of Chinese Medicine—often called the "MIT of Traditional Chinese Medicine"—with the dream of becoming a physician who diagnosed the "bugs" and imbalances of the human body. Today, I've channeled that diagnostic spirit from human systems to software systems, dedicating myself to identifying and "curing" the ailments that affect software reliability and keeping our digital world healthy.
😃 Passionate about prescribing solutions for system reliability. If you're interested in building more robust software, let's connect!
💡 Research Interest
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Reliability in Cloud and AI System
- Performance Diagnose
- Performance Optimization
- Chaos Engineering
- Observability
📖 Education
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Sun Yat-sen University
Ph.D. in Computer Science and Technology 2020 - 2024
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Sun Yat-sen University
M.Eng in Computer Technology 2018 - 2020
🎖 Honors & Awards
- ACM China(Zhuhai) Doctoroal Dissertation Award 2024
- Distinguish Paper Award for FSE'24 2024
- Outstanding PhD Graduate, SYSU 2024
- National Scholarship, SYSU 2022-2023
- Tencent Rhino-Bird Research Elite Program & Special Scholarship, Tencent 2022-2023
💼 Service
- PC: APSEC'25, Eurosys'25(Shadow), OSDI'22(Artifact), ATC'22(Artifact)
- Reviewer: WWW'24, TPDS, TC, TSE, TOSEM, TMC, TSC, TCC, J Supercomput
- Sub-reviewer: TOSEM, ICSOC'22, ISSTA'25
News
Selected Publications († represents corresponding author) (view all )
iKnow: an Intent-Guided Chatbot for Cloud Operations with Retrieval-Augmented Generation
Junjie Huang, Yuedong Zhong, Guangba Yu†, Zihan Jiang, Minzhi Yan, Wenfei Luan, Tianyu Yang, Rui Ren, Michael Lyu
ASE'25 (CCF A) In 40th IEEE/ACM International Conference on Automated Software Engineering
AlertGuardian: Intelligent Alert Life-Cycle Management for Large-scale Cloud Systems
Guangba Yu, Genting Mai, Rui Wang, Ruipeng Li, Pengfei Chen†, Long Pan, Ruijie Xu
ASE'25 (CCF A) In 40th IEEE/ACM International Conference on Automated Software Engineering
NetScope: Fault Localization in Programmable Networking Systems With Low-Cost In-Band Network Telemetry and In-Network Detection
Hongyang Chen, Benran Wang, Guangba Yu, Zilong He, Pengfei Chen†, Chen Sun, Zibin Zheng
ToN (CCF A) In IEEE Transactions on Networking
Subgraphs as First-Class Citizens in Incident Management for Large-Scale Online Systems An Evolution-AwareFramework
Zilong He, Pengfei Chen†, Yu Luo, Qiuyu Yan, Hongyang Chen, Guangba Yu, Fangyuan Lo, Xiaoyun Li, Zibin Zheng
TSE (CCF A) In IEEE Transactions Software Engineering
A Survey on Failure Analysis and Fault Injection in AI Systems
Guangba Yu, Gou Tan, Haojia Huang, Zhenyu Zhang, Pengfei Chen†, Roberto Natella, Zibin Zheng, Michael R. Lyu
TOSEM (CCF A) In ACM Transactions on Software Engineering and Methodology
L4: Diagnosing Large-scale LLM Training Failures via Automated Log Analysis
Zhihan Jiang, Junjie Huang, Guangba Yu†, Zhuangbin Chen, Yichen Li, Renyi Zhong, Cong Feng, Yongqiang Yang, Michael R. Lyu
FSE'25 (CCF A) In 33nd ACM International Conference on the Foundations of Software Engineering.
COCA: Generative Root Cause Analysis for Distributed Systems with Code Knowledge
Yichen Li, Yulun Wu, Jinyang Liu, Zhihan Jiang, Zhuangbin Chen, Guangba Yu†, Michael R. Lyu
ICSE'25 (CCF A) In 47th IEEE/ACM International Conference on Software Engineering
Mint: Cost-Efficient Tracing with All Requests Collection via Commonality and Variability Analysiss
Haiyu Huang, Cheng Chen, Kunyi Chen, Pengfei Chen†, Guangba Yu, Zilong He, Yilun Wang, Huxing Zhang, Qi Zhou
ASPLOS'25 (CCF A) In 30th ACM International Conference on Architectural Support for Programming Languages and Operating Systems.
FaaSConf: QoS-aware Hybrid Resources Configuration for Serverless Workflows
Yilun Wang, Pengfei Chen, Hui Dou†, Yiwen Zhang, Guangba Yu, Zilong He, Haiyu Huang
ASE'24 (CCF A) In 39th IEEE/ACM International Conference on Automated Software Engineering.
MicroFI: Non-Intrusive and Prioritized Request-Level Fault Injection for Microservice Applications
Hongyang Chen, Pengfei Chen†, Guangba Yu, Xiaoyun Li, Zilong He, Huxing Zhang
TDSC (CCF A) In IEEE Transactions on Dependable and Secure Computing
TraStrainer: Adaptive Sampling for Distributed Traces with System Runtime State
Haiyu Huang, Xiaoyu Zhang, Pengfei Chen†, Zilong He, Zhiming Chen, Guangba Yu, Hongyang Chen, Chen Sun
FSE'24 (CCF A) In 32nd ACM International Conference on the Foundations of Software Engineering. 🏆 Distinguish Paper Award
ChangeRCA: Finding Root Causes from Software Changes in Large Online Systems
Guangba Yu, Pengfei Chen†, Zilong He, Qiuyu Yan, Yu Luo, Fangyan Li, Zibin Zheng
FSE'24 (CCF A) In 32nd ACM International Conference on the Foundations of Software Engineering.
Nezha: Interpretable Fine-Grained Root Causes Analysis for Microservices on Multi-Modal Observability Data
Guangba Yu, Pengfei Chen†, Yufeng Li, Hongyang Chen, Xiaoyun Li, Zibin Zheng
FSE'23 (CCF A) In 31st ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering
LogReducer: Identify and Reduce Log Hotspots in Kernel on the Fly
Guangba Yu, Pengfei Chen†, Pairui Li, Tianjun Weng, Haibing Zheng, Yuetang Deng, Zibin Zheng
ICSE'23 (CCF A) In 45th IEEE/ACM International Conference on Software Engineering
FaaSDeliver: Cost-efficient and QoS-aware Function Delivery in Computing Continuum
Guangba Yu, Pengfei Chen†, Zibin Zheng, Jingrun Zhang, Xiaoyun Li, Zilong He
TSC (CCF A) In IEEE Transaction on Service Computing