About me

I am a first-year CS PhD student at the University of Wisconsin-Madison, working with Prof. Shivaram Venkataraman. Before this, I was an undergraduate student at Fudan University. I had wonderful times at Moonshot AI, Microsoft Research Asia, UC Berkeley, and Nanyang Technological University.

Research Interests

Machine Learning Systems, Large Language Models, Data-intensive Systems


  • [SIGMOD 2024] Learning to Optimize LSM-trees: Towards A Reinforcement Learning based Key-Value Store for Dynamic Workloads. Dingheng Mo, Fanchao Chen, Siqiang Luo, Caihua Shan.
  • [ICDE 2023] Efficient and Compact Spreadsheet Formula Graphs. Dixin Tang, Fanchao Chen, Christopher De Leon, Tana Wattanawaroon, Jeaseok Yun, Srinivasan Seshadri, Aditya G Parameswaran.
  • [VLDB Demo 2023] Visualizing Spreadsheet Formula Graphs Compactly. Fanchao Chen, Dixin Tang, Haotian Li, Aditya G Parameswaran.


  • Robust and Efficient Learning-based Virtual NUMA Placement for Large-Scale Production Clusters.