Introduction

Weng Siyang is a PhD candidate in Data Science and Engineering at East China Normal University (ECNU), expected to graduate in 2027. He received a BS degree in Data Science and Big Data Technology from ECNU in 2022. Since Oct 2024, he has been a storage engine R&D intern at Tencent TDSQL, working on transaction correctness verification and storage engine optimization. He has also helped find and fix 80+ database bugs. His research interests include database testing and correctness verification, transaction processing, distributed storage, and storage engine design.

Publications

  1. Siyang Weng, Hongyu Yang, Zirui Hu, Rong Zhang, Zhicheng Pan, Chengcheng Yang, Xuan Zhou, Yuxing Chen, Xiaolong He, and Anqun Pan. Pisco: An Isolation Bug Case Reduction and Deduplication Framework. Proceedings of the VLDB Endowment (PVLDB), 19(6): 1413 - 1426, 2026.
  2. Siyang Weng, Keqiang Li, Zirui Hu, Lyu Ni, Chengcheng Yang, Rong Zhang, Peng Cai, Xuan Zhou, Weining Qian, and Jianquan Leng. A High-Performance Black-Box Bug-Finding Tool for Database Isolation Levels. IEEE Transactions on Knowledge and Data Engineering (TKDE), 38(6): 3349–3364, 2026.
  3. Zirui Hu, Siyang Weng, Zhicheng Pan, Rong Zhang, Chengcheng Yang, Peng Cai, Xuan Zhou, Quanqing Xu, and Chuanhui Yang. Vodka: Rethink Benchmarking Philosophy in HTAP Systems. Proceedings of the VLDB Endowment (PVLDB), 19(3): 481–494, 2025.
  4. Haopu Dong, Zirui Hu, Chenhao Lu, Siyang Weng, Qingsong Ruan, and Rong Zhang. Memory-Aware Query Optimization. IEEE Big Data, 7321–7329, 2025.
  5. Xuhua Huang, Zirui Hu, Siyang Weng, Rong Zhang, Chengcheng Yang, Xuan Zhou, Weining Qian, Chuanhui Yang, and Quanqing Xu. A Query-Aware Enormous Database Generator for System Performance Evaluation. SIGMOD Conference Companion, 131–134, 2025.
  6. Keqiang Li, Siyang Weng, Lyu Ni, Chengcheng Yang, Rong Zhang, Xuan Zhou, and Aoying Zhou. DBStorm: Generating Various Effective Workloads for Testing Isolation Levels. In Proceedings of the ACM International Symposium on Software Testing and Analysis (ISSTA ’24).
  7. Siyang Weng, Qingshuai Wang, Luyi Qu, Rong Zhang, Peng Cai, Weining Qian, and Aoying Zhou. Lauca: A Workload Duplicator for Benchmarking Transactional Database Performance. IEEE Transactions on Knowledge and Data Engineering (TKDE), 36(7): 3180–3194, 2024.
  8. Peiyuan Liu, Siyang Weng, Keqiang Li, Lyu Ni, Chengcheng Yang, Rong Zhang, Weining Qian, and Dian Qiao. Leopard: A General Test Suite for Isolation Level Verification. In Conference on Innovative Data Systems Research (CIDR), 2024.
  9. Siyang Weng, Rong Yu, Qingshuai Wang, Zirui Hu, Lyu Ni, Rong Zhang, Xuan Zhou, Aoying Zhou, Quanqing Xu, Chuanhui Yang, Wei Liu, and Panfei Yang. The Benchmarking Ability of HTAP Benchmarks. Journal of Software, 36(1): 424–445, 2025.
  10. Zirui Hu, Siyang Weng, Qingshuai Wang, Rong Yu, Jingkai Xu, Rong Zhang, and Xuan Zhou. Data Sharing Model and Optimization Strategies in HTAP Database Systems. Journal of Software, 35(6): 2951–2973, 2024.
  11. Keqiang Li, Siyang Weng, Peiyuan Liu, Lyu Ni, Chengcheng Yang, Rong Zhang, Xuan Zhou, Jianghang Lou, Gui Huang, Weining Qian, and Aoying Zhou. Leopard: A Black-Box Approach for Efficiently Verifying Various Isolation Levels. In IEEE International Conference on Data Engineering (ICDE), 722–735, 2023.
  12. Hailin He, Siyang Weng, Lingyang Zeng, Huidong Zhang, Rong Zhang, Peng Cai, Xuan Zhou, and Quanqing Xu. Benchmarking Distributed Transactional Database Systems. In Benchmarking, Measuring, and Optimizing (Bench 2024), LNCS 15519: 37–53, 2024.

Under Review / Preprints

  1. Siyang Weng et al. Eris: A Dependency-driven Isolation Level Testing Framework. SIGMOD, under review (submitted July 2026).
  2. Lingyang Zeng, Guangze Chen, Kaichen Yu, Zhicheng Pan, Siyang Weng, Zirui Hu, Xiangyun Du, Hailin He, Rong Zhang, Chengcheng Yang, Kai Huang, and Xuan Zhou. Setoka: A Benchmark for Hierarchical User Understanding in Personalized Agents over Heterogeneous Data. arXiv:2607.27056, 2026.

Chinese Articles

  1. 卢皙钰, 刘维, 翁思扬, 李可强, 张蓉. 基于模糊测试生成多样化的数据库隔离级别测试案例. 华东师范大学学报（自然科学版）, 2023(5): 51–64.
  2. 凌向荣, 翁思扬, 张蓉. 基于锁避免的事务内阻塞分析与调度策略. 华东师范大学学报（自然科学版）, 2024(5): 152–161.

Honors and Awards

  1. 2024.10 National Scholarship (China).
  2. 2024.05 Outstanding Doctoral Student Academic Innovation Ability Enhancement Program.
  3. 2023.12 TOP 100 Benchmarks & Evaluation Achievement Award, International Open Benchmark Council.
  4. 2023.11 Second Prize, OpenAtom Open Source Competition.
  5. 2022.07 First Prize Excellent Student & Active Participation Award, VLDB Summer School.
  6. 2022.06 Outstanding Graduate of Shanghai.
  7. 2022.05 Silver Medal, OceanBase Database Competition.
  8. 2021.04 Meritorious Winner, Mathematical Contest in Modeling (MCM).
  9. 2020.12 First Prize, Contemporary Undergraduate Mathematical Contest in Modeling (Shanghai Region).
  10. 2020.11 Second Prize, Contemporary Undergraduate Mathematical Contest in Modeling (National).
  11. 2020.04 Successful Participant, Mathematical Contest in Modeling (MCM).
  12. 2019.11 Honorable Mention, The 44th ICPC Asia Regional Contest (Shanghai Site).
  13. 2019.10 Honorable Mention, The 44th ICPC Asia Regional Contest (Nanjing Site).

Teaching

  • Teaching Assistant of Information Retrieval and Natural Language Processing, ECNU, 2023 Spring