Siyue Liu

Siyue Liu

About me

Hi, welcome to my website! I’m Siyue Liu (刘思月), a Ph.D. student at Carnegie Mellon University (CMU) Tepper School of Business. I’m in the Algorithms, Combinatorics and Optimization (ACO) Program. I am very fortunate to work with Professors Gérard Cornuéjols and R. Ravi. I am broadly interested in combinatorial optimization, approximation algorithms, integer programming and nonconvex optimization.

I graduated from Shanghai Jiao Tong University (SJTU) in 2022 with a Bachelor in Economics, where Professor Taotao He guided me to the world of optimization. I visited Professor Ahmad Abdi at London School of Economics (LSE) Math department in 2023 Fall. Besides, I’m grateful to the mentorship and guidance from Professors Christopher Thomas Ryan, Tim Huh and Fatma Kılınç-Karzan and many others along the way.

Publications

Conference Publications

  1. Strongly Connected Orientations and Integer Lattices
    with Ahmad Abdi, Gérard Cornuéjols and Olha Silina
    Integer Programming and Combinatorial Optimization (IPCO), 2025 (to appear)
  2. Approximately Packing Dijoins via Nowhere-Zero Flows
    with Gérard Cornuéjols and R. Ravi
    Integer Programming and Combinatorial Optimization (IPCO), 2024
    Best Paper Award
  3. On the Congruency-Constrained Matroid Base
    with Chao Xu
    Integer Programming and Combinatorial Optimization (IPCO), 2024

Journal Publications

  1. On the Smallest Support Size of Integer Solutions to Linear Equations
    with Yatharth Dubey
    Mathematical Programming Series A, 2025
  2. Assortment Optimization Under the Multinomial Logit Choice Model with Product-specific Capacities
    with Woonghee Tim Huh
    Operations Research Letters, 2025
  3. Convexification Techniques for Fractional Programs
    with Taotao He and Mohit Tawarmalani
    Mathematical Programming Series A, 2024

Preprints

  1. Packing Dijoins in Weighted Chordal Digraphs
    with Gérard Cornuéjols and R. Ravi
    Arxiv preprint, 2025

Teachings

TAing

  • Integer Programming, Ph.D., CMU, Grader, Spring 2024, 2025
  • Integer Programming and Combinatorial Optimization, Ph.D., SJTU, Taught recitation, Spring 2022
  • Optimization Methods in Economics, Undergrad, SJTU, Taught recitation, Spring 2021

Misc

I’m a martial art practitioner and I’m particularly enthusiastic about Chinese Kung Fu, including but not limited to Wing Chun, Xing Yi and Tai Chi.