Hugh (Yin) Liu


  • University of Wisconsin - Madison   2018 - 2023
    Ph.D. in Computer Science
    Minor in Mathematics

  • Tsinghua University               2014 - 2018
    B.Eng. in Automation

Research Interest

Algorithms / Computational Complextity / Counting Problems / Holant Problems / Machine Learning / Augmented Reality



  • I obtained my Ph.D. degree in Computer Science at University of Wisconsin-Madison in 2023, advised by Professor Jin-Yi Cai. My Ph.D. research interests lie in Computational Complexity, particularly in complextity of Counting Problems, including Holant Problems, #CSP, graph homomorphisms, etc.

  • I am also interested in Machine Learning and general software engineering in a broad range of aspects.
    This summer (2023) I did an internship at Google, in Sunnyvale, California.
    Last summer (2022) I did an internship also at Google, in Mountain View, California.
    I had a wonderful summer working as a machine learning research intern at SiriusXM-Pandora in 2021.

  • I obtained my Bachelor's degree from Tsinghua University in 2018. My major was Automation.

  • I was a summer intern at Cornell University in 2017, where I was luckily advised by Professor John E. Hopcroft and Dr. Gao Huang.


TCS publications

Other publications

Scholarship & Honors

Summer RA-ship Award, UW-Madison, 2019

Special CS Scholarship, UW-Madison, 2018

Science and Technology Innovation Excellence Award, Tsinghua University, 2017

Ronghua Zhang Scholarship for Excellent Academic Performance, Tsinghua University, 2015

1st prize in Chinese Mathematical Olympiad in province, 2013

1st prize in Chinese Physics Olympiad in province, 2013


  • I had been the Chairman of Tsinghua Alumni Association in Wisconsin (TAAW) for one year and organized some events.
  • I love playing sports, especially soccer, tabata core, table-tennis, running and figure roller skating.
  • I also play tennis, basketball, swim and do decathlon from time to time.
  • I have a rank of top 8 in both 8-ball and 9-ball games in Madison. Moreover, I am the runner-up in the 8-ball games among Chinese students.