Lixing Zhang

Lixing Zhang, University of Minnesota Ph.D. student

Lixing Zhang

Ph.D. student

Department of Industrial and Systems Engineering

University of Minnesota

I am a second-year Ph.D. student in the Department of Industrial and Systems Engineering at the University of Minnesota (UMN), advised by Prof. Liyan Xie.

Before that, I earned my bachelor’s degree in Mathematics from The Chinese University of Hong Kong, Shenzhen.

My research focuses on statistical machine learning, generative AI, and detection.

Education

Sep 2024 - present University of Minnesota
Ph.D. student in Industrial and Systems Engineering
Advisor: Prof. Liyan Xie.
Jan 2023 - Jun 2023 University of California, Berkeley
Visiting Student
Sep 2020 - Jun 2024 The Chinese University of Hong Kong, Shenzhen
B.S. in Mathematics

News

Apr 2026 Our paper “Sequential Change Detection for Multiple Data Streams with Differential Privacy” has been accepted by IEEE ISIT 2026.
Apr 2026 Our paper “Sequential Change Detection with Local Differential Privacy” has been published in Entropy.
Sep 2024 Started the Ph.D. program in Industrial and Systems Engineering at the University of Minnesota.

Publications

  1. Learning What Not to Impute: An Uncertainty-Aware Diffusion Framework for Meaningful Missingness
    Lixing Zhang, Yidong Ouyang, Weifu Li, Shixiang Zhu, Guang Cheng, and Liyan Xie
    arxiv preprint, 2026
    arXiv Code
  2. Masked Diffusion Modeling for Anomaly Detection
    Lixing Zhang, Yuchen Liang, and Liyan Xie
    arxiv preprint, 2026
    arXiv Code
  3. Sequential Change Detection for Multiple Data Streams with Differential Privacy
    Lixing Zhang, Liyan Xie, and Ruizhi Zhang
    In IEEE International Symposium on Information Theory (ISIT), 2026
    Accepted
    arXiv
  4. Sequential Change Detection with Local Differential Privacy
    Lixing Zhang, Xuran Liu, Ruizhi Zhang, and Liyan Xie
    Entropy, 2026
    DOI