Yuhang Chen CS Ph.D. Candidate Email: yuhangc [at] comp.nus.edu.sg

Biography

I obtained my B.E degree from School of Computer Science and Technology, Huazhong University of Science and Technology in Jun. 2020.

My research interests are database systems, graph algorithms, and high performance computing.

Education

• Huazhong University of Science and Technology, Wuhan, China

  Sep. 2016 – Jun. 2020
  B.E. in Computer Science and Technology
  GPA: 91.29/100 3.95/4
  Rank: 2/312(CS)
  
• National University of Singapore, Singapore

  Aug. 2020 - Present
  Ph.D. Candidate in School of Computer
  

Working Experience

• TokkaLabs (Quantitative Research Intern), Singapore

             

  Jul. 2025 - Now
  Developed and implemented several path-finding algorithms to maximize transaction output across DEX networks.
  Engineered indexing and dynamic update optimizations to enhance the speed of the offline path-finding algorithm.
  Conducted quantitative analysis on the leading performance indicators of various CEX exchanges.
  
• Ant Group (Research Intern), Hangzhou, China

  Feb. 2025 - May 2025
  Designed and deployed a high-performance distributed system for attributed community detection, capable of scaling to graphs with billions of nodes.
  Proposed and implemented communication and computation-based optimizations that accelerated the distributed system's runtime by approximately 3-4X.
  
• Grab Taxi Holdings(Research Collaboration), Singapore

  Aug. 2023 - Nov. 2024
  Investigated and modeled burst behavior within fraud communities in Grab's transaction graph.
  Implemented a real-time burst fraud detection system on Grab's graph, achieving a 1.3X improvement in accuracy.
  

Selected Publications

• RUSH: Real-time Burst Subgraph Detection in Dynamic Graphs
  Yuhang Chen, Jiaxin Jiang, Shixuan Sun, Bingsheng He, Min Chen
  International Conference on Very Large Data Bases (VLDB), 2024.
  
• BLITZ: A Flexible and Efficient Graph Mining System
  Yuhang Chen, Shixuan Sun, Jiaxin Jiang, Bingsheng He, Yuchen Li
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 2025.
  
• A Distributed Community Detection System for Industry-Scale Attributed Graphs
  Yuhang Chen, Yunfei Liu, Peng Du, et, al
  ACM SIGMOD International Conference on Management of Data (SIGMOD(Under Revision)), 2025.
  
• ThunderRW: An In-Memory Graph Random Walk Engine
  Shixuan Sun, Yuhang Chen, Shengliang Lu, Bingsheng He, Yuchen Li
  International Conference on Very Large Data Bases (VLDB), 2021.
  
• PathEnum: Towards Real-Time Hop-Constrained s-t Path Enumeration
  Shixuan Sun, Yuhang Chen, Bingsheng He, Bryan Hooi
  ACM SIGMOD International Conference on Management of Data (SIGMOD), 2021.
  
• RICH: Real-time Identification of negative Cycles for High-efficiency arbitrage
  Bingqiao Luo, Jiaxin Jiang, Yuhang Chen, Bingsheng He, et al
  International Conference on Very Large Data Bases (VLDB), 2025.
  
• Spade+: A Generic Real-Time Fraud Detection Framework on Dynamic Graphs
  Jiaxin Jiang, Yuhang Chen, Bingsheng He, Min Chen, Jia Chen
  IEEE Transactions on Knowledge and Data Engineering (TKDE), 2024.
  
• Community Detection in Heterogeneous Information Networks Without Materialization
  Jiaxin Jiang, Siyuan Yao, Yuhang Chen, Yudong Niu, Bingsheng He, Yuchen Li, Shixuan Sun, Yongchao Liu
  ACM SIGMOD International Conference on Management of Data (SIGMOD), 2025.
  

Teaching Experiences

• Teaching Assistant, NUS, CS2030S(2021), CS1010E(2021), CS4225/5425(2022)
• Teaching Assistant, HUST, Data Structure(2018)

Selected Awards

• Research Achievement Award(5%), National University of Singapore
  2024
• Outstanding Graduate award, Huazhong University of Science and Technology
  2020
• University Scholarship (HUST Merit Student, Top 5%)
  2018,2019
• China National Scholarship(Top 2%)
  2018