Xuecheng Liu

I am a master’s student in Electrical and Computer Engineering at Carnegie Mellon University, working with Prof. Andrea Zanette. My research focuses on efficient and scalable reasoning in language model systems, with an emphasis on reinforcement learning, self-improving agents, and parallel computation at inference time. Previously, I earned dual degrees in Computer Engineering from Zhejiang University and the University of Illinois Urbana-Champaign.

Portrait of Xuecheng Liu

Publications

COLM 2026Outstanding Paper Award (3 / 856 accepted papers)

Message Passing Enables Efficient Reasoning

Xuecheng Liu*, Daman Arora*, Gokul Swamy, and Andrea Zanette

COLM 2026Workshop on Lifelong Agents (LLA)Oral Presentation

Harness Learning Enables Generalizable Test-Time Adaptation

Alvin Zhang*, Xuecheng Liu*, Zixuan Wang*, Fahim Tajwar, Daman Arora, Ruslan Salakhutdinov, Daniel Khashabi, Yuda Song, and Andrea Zanette

* Equal contribution

Education

Carnegie Mellon University

Jan 2026 — Dec 2027

M.S. in Electrical and Computer Engineering

GPA 4.00/4.00

Zhejiang University & University of Illinois Urbana-Champaign

Sep 2021 — May 2025

Dual degree in Computer Engineering · B.E., Zhejiang University; B.S., UIUC

GPA 3.92/4.00 · Dean’s List every semester