I’m a PhD student in Khoury College of Computer Sciences at Northeastern University, advised by Prof. Cheng Tan. Before Northeastern, I obtained my M.E and B.E in Renmin University of China (RUC) under the supervision of Prof. Yunpeng Chai. My research interest lies in building verifiable intelligent systems.
Publications
2021
- Rethink the Linearizability Constraints of Raft for Distributed Key-Value Stores
- Yangyang Wang, Zikai Wang, Yunpeng Chai, Xin Wang
- 2021 IEEE 37th International Conference on Data Engineering (ICDE), Chania, Greece, 2021
Education
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PhD in Computer Science, Northeastern University
- 2024 - Present, Khoury College of Computer Sciences
- Advisor: Prof. Cheng Tan
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M.E., Renmin University of China
- 2021 - 2024, School of Information
- Advisor: Prof. Yunpeng Chai
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B.E., Renmin University of China
- 2017 - 2021, School of Information
Experience
- Research Intern, Microsoft Research Asia
- May. 2024 - August. 2024
- With Qianxi Zhang, Qi Chen and Baotong Lu.
- Research Intern, TU Darmstadt
- Mar. 2023 - May. 2024, Data Management Group, Remote
- With Prof. Carsten Binnig and Dr. Tobias Ziegler
- We conducted an extensive performance evaluation of common concurrency control methods within the context of the disaggregated shared-caching system with the support of RDMA, ScaleStore, and analyzed its suitable transaction model.
- Constructing a scalable transactional database system above ScaleStore.
- Research Intern, Tencent
- Sep. 2020 - Sep. 2022, TDSQL3, Beijing
- Provided heterogeneous multiple replicas supports for TDSQL3, a commercial distributed HTAP database developed by Tencent.
- Proposed a workload-aware storage model based on the LSM-Tree storage engine of TDSQL3. We decoupled the tuple-level key-value pairs and reorganized the field-level key-value pairs based on the cost model of key-value engines and our evaluation of storage models.
- VLDB Summer School 2021
- Jan. 2022, Haikou, Hainan
- Awards: Outstanding Student
- Participated in lectures on distributed transactions, concurrency control, transactions on new hardware, etc.
- Finished the distributed database labs based on TinySQL and TinyKV.
- Teaching Assistant, Renmin Univ. of China
- 2019 Fall, Foundations of Computer System I (Architecture Part), with Prof. Yunpeng Chai
- 2020 Spring, Foundations of Computer System I (System Part), with Prof. Yunpeng Chai
- 2021 Spring, Distributed and Parallel Computing, with Prof. Yunpeng Chai and Prof. Feng Zhang
Honors and Awards
- First Class Scholarship (2021 - 2022)
- Outstanding Student in VLDB Summber School (Jan. 2022)
- Outstanding Graduate (Renmin Univ. of China, Jun. 2021)