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

Mar 26, 2025 Two papers got accepted at ICDE 2025! :tada:
Feb 4, 2025 Our Tutorial got accepted at SIGMOD 2025! :tada:
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:

selected publications

  1. CIDR’25
    AOP: Automated and Interactive LLM Pipeline Orchestration for Answering Complex Queries
    Jiayi Wang, and Guoliang Li
    CIDR, 2025
    PDF
  2. ICDE’25
    Unify: An Unstructured Data Analytics System
    Jiayi Wang, and Jianhua Feng
    ICDE, 2025
  3. ICDE’25
    Federated Data Analytics with Differentially Private Density Estimation Model
    Jiayi Wang, Lei Cao, Chengliang Chai, and Guoliang Li
    ICDE, 2025
  4. VLDBJ’24
    Cardinality estimation using normalizing flow
    Jiayi Wang, Chengliang Chai, Jiabin Liu, and Guoliang Li
    VLDB J., 2024
    PDF Code
  5. 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
  6. VLDB’22
    FACE: A Normalizing Flow based Cardinality Estimator
    Jiayi Wang, Chengliang Chai, Jiabin Liu, and Guoliang Li
    Proc. VLDB Endow., 2022
    PDF Code