Hengrui Wang

  • wang-hr21@mails.tsinghua.edu.cn
  • WeChat: whr98991230

About Me

I am a PhD student in the Institute for Interdisciplinary Information Science (Yao Class) at Tsinghua University, advised by Prof. Huanchen Zhang. Before joining Tsinghua, I obtained my BS at Yuanpei College of Peking University, advised by Prof. Tong Yang. My research interests mainly lie in designing lightning-fast data structures and algorithms for storage, databases, and machine learning systems. I recently began designing a high-performance key-value store for HFT systems.

I am actively seeking opportunities in the computer systems research community (academic roles) as well as quantitative research positions in industry. If you find my work relevant, feel free to contact me via email or WeChat.

Education

Tsinghua University

2021 - Present

PhD in Institute for Interdisciplinary Information Science (IIIS)

Advisor: Huanchen Zhang

Research Topics: Concurrent Data Structures, ML Systems, Cloud Databases

Peking University

2022 - 2025

Minor in Economics in the National School of Development

Peking University

2017 - 2021

BS in Yuanpei College

Advisor: Tong Yang

Research Topics: Probabilistic Data Structures

Professional Experience

Jiaqi Investment

Beijing, China
June 2025 - Sep 2025

Quantative Researcher (HFT)

F Lab

Shenzhen, China
Jan 2025 - June 2025

Quantative Researcher

Shanghai Qi Zhi Institute

Shanghai, China
Aug 2022 - Present

Research intern on Cost-Intelligent Data Analytics in the Cloud

Tencent

Beijing, China
July 2020 - Sep 2020

Research intern on Intelligent Traffic Prediction

Publications

Rethinking The Compaction Policies in LSM-trees

Hengrui Wang, Jiansheng Qiu, Fangzhou Yuan, Huanchen Zhang
Proceedings of the ACM on Management of Data (SIGMOD'25), June 2025

GRF: A Global Range Filter for LSM-Trees with Shape Encoding

Hengrui Wang, Te Guo, Junzhao Yang, Huanchen Zhang
Proceedings of the ACM on Management of Data (SIGMOD'24), June 2024

PISketch: Finding Persistent and Infrequent Flows

Zhuochen Fan, Zhoujing Hu, Yuhan Wu, Jiarui Guo, Wenrui Liu, Tong Yang, Hengrui Wang, Yifei Xu, Steve Uhlig, Yaofeng Tu.
ACM SIGCOMM Workshop on Formal Foundations and Security of Programmable network INfrastructures (FFSPIN) 2022

Enhanced Machine Learning Sketches for Network Measurements

Hengrui Wang, Huiping Lin, Zheng Zhong, Tong Yang, Muhammad Shahzad
Transactions on Computers 2022