Zehao Wang

I am a Ph.D. student at Concordia University in the SPEAR Lab, advised by Dr. Tse-Hsun (Peter) Chen. My current research focuses on LLM agents for software engineering, particularly their reasoning and context management when applied to real codebases. I am also broadly interested in software performance engineering and distributed systems.

Education

2021.05 — Present Ph.D. in Computer Science Concordia University
2019.09 — 2021.05 M.S. in Computer Science Concordia University
2012.09 — 2016.06 B.Eng. in Software Engineering Xidian University

Publications

[ICML 2026] Chenglin Li, Yisen Xu, Zehao Wang, Shin Hwei Tan, Tse-Hsun (Peter) Chen. From Patches to Plans: Reasoning Distillation for Repository-Level Program Repair. (2026). The 43rd International Conference on Machine Learning.
[arXiv 2026] Chenglin Li, Yisen Xu, Zehao Wang, Shin Hwei Tan, Tse-Hsun (Peter) Chen. Are Benchmark Tests Strong Enough? Mutation-Guided Diagnosis and Augmentation of Regression Suites. (2026). arXiv preprint. [arXiv]
[Under Revision · EMSE] Zehao Wang, Dong Jae Kim, Tse-Hsun (Peter) Chen. Identifying Performance-Sensitive Configurations in Software Systems through Code Analysis with LLM Agents. (2025). Under revision at Empirical Software Engineering. Extended version of the ICSE-SRC 2025 paper below. [arXiv]
[ICSE-SRC 2025] Zehao Wang. Identifying Performance-Sensitive Configurations in Software Systems with LLM-Driven Agents. (2025). The 47th IEEE/ACM International Conference on Software Engineering — Student Research Competition.
[arXiv 2024] Yixi Wu, Pengfei He, Zehao Wang, Shaowei Wang, Yuan Tian, Tse-Hsun (Peter) Chen. A Comprehensive Framework for Evaluating API-oriented Code Generation in Large Language Models. (2024). arXiv preprint. [arXiv]
[JSS 2024] [ICPE 2025 Journal-First] Zehao Wang, Wei Liu, Jinfu Chen, Tse-Hsun (Peter) Chen. RPerf: Mining User Reviews Using Topic Modeling to Assist Performance Testing — An Industrial Experience Report. (2024). Journal of Systems and Software. [Paper]
[JSS 2022] Zehao Wang, Tse-Hsun (Peter) Chen, Haoxiang Zhang, Shaowei Wang. An Empirical Study on the Challenges that Developers Encounter When Developing Apache Spark Applications. (2022). Journal of Systems and Software. [Paper] [Local PDF]
[FSE 2021] Zehao Wang, Haoxiang Zhang, Tse-Hsun (Peter) Chen, Shaowei Wang. Would You Like a Quick Peek? Providing Logging Support to Monitor Data Processing in Big Data Applications. (2021). The ACM Joint European Software Engineering Conference and Symposium on the Foundations of Software Engineering. [Paper]
[ICSE-SRC 2021] Zehao Wang. Understanding the Challenges and Assisting Developers with Developing Spark Applications. (2021). The 43rd IEEE/ACM International Conference on Software Engineering — Student Research Competition. [Paper]

Service

Program Committee

2026 Program Committee, ACM CAIS 2026 Workshop on Agentic SE
2026 Program Committee, MSR 2026 (Mining Challenge Track) IEEE/ACM International Conference on Mining Software Repositories
2022 Shadow Program Committee, MSR 2022 IEEE/ACM International Conference on Mining Software Repositories

Reviewer

ACM Transactions on Software Engineering and Methodology (TOSEM)
Empirical Software Engineering Journal (EMSE)

Teaching Assistant

2025 SOEN 7481, Software Verification & Testing Concordia University
2021 SOEN 341, Software Process Concordia University
2021 COMP 248, Object-Oriented Programming Concordia University

Awards

Concordia International Tuition Award of Excellence
Concordia University Conference & Exposition Award
Concordia Merit Scholarship