Jiayi Wang

Ph.D candidate, Dept. of Computer Science and Technology, Tsinghua University

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I am now a 5th-year Ph.D student advised by Prof. Guoliang Li at DBGroup, Department of Computer Science and Technology, Tsinghua University.

My current research focuses on improving query optimization in database with AI techniques and improving data analytics.

news

Oct 4, 2024 One paper got accepted at CIDR 2025! :tada:
Mar 10, 2024 Organizing the SIGMOD programming contest this year! Hope participants enjoy! :smiley:
Sep 1, 2023 Invited to present RECON at TaDA Workshop @ VLDB 2023. Hope to contribute! :tada:
Apr 15, 2023 :trophy: Won the championship of SIGMOD 2023 programming contest! :smiley:
Mar 13, 2023 One paper got accepted at SIGMOD 2023! :tada:

selected publications

  1. CIDR’25
    AOP: Automated and Interactive LLM Pipeline Orchestration for Answering Complex Queries
    Jiayi Wang, and Guoliang Li
    CIDR, 2025
  2. VLDBJ’24
    Cardinality estimation using normalizing flow
    Jiayi Wang, Chengliang Chai, Jiabin Liu, and Guoliang Li
    VLDB J., 2024
    PDF Code
  3. VLDB’23
    Coresets over Multiple Tables for Feature-rich and Data-efficient Machine Learning
    Jiayi Wang, Chengliang Chai, Nan Tang, Jiabin Liu, and Guoliang Li
    Proc. VLDB Endow., 2023
    PDF Code
  4. VLDB’22
    FACE: A Normalizing Flow based Cardinality Estimator
    Jiayi Wang, Chengliang Chai, Jiabin Liu, and Guoliang Li
    Proc. VLDB Endow., 2022
    PDF Code