I am a Ph.D. candidate in Department of Computer Science and Engineering, The Chinese University of Hong Kong (CUHK), and a member of the Applied Distributed Systems Lab (ADSLab), supervised by Professor Patrick P. C. Lee. Before that, I received my bachelor degree in Information Security from Beijing University of Posts and Telecommunications (BUPT) in 2020 and master degree in Electronic and Information Engineering from Institute of Computing Technology, Chinese Academy of Sciences (ICT, CAS) in 2023, supervised by Professor Qun Huang.

My research interests are machine learning systems and network systems.

Selected Publications

[ArXiv 26] FluxMoE: Decoupling Expert Residency for High-Performance MoE Serving. [PDF]
Qingxiu Liu, Yongchao He, Runhan Jiang, Zion Wang, Bohan Zhao, Mi Zhang, and Patrick P. C. Lee.

[TON 26] Fletch: File-System Metadata Caching in Programmable Switches. [PDF]
Qingxiu Liu, Jiazhen Cai, Siyuan Sheng, Yuhui Chen, Lu Tang, Zhirong Shen, and Patrick P. C. Lee.

[ICDE 24] PP-Stream: Toward High-Performance Privacy-Preserving Neural Network Inference via Distributed Stream Processing. [PDF]
Qingxiu Liu, Qun Huang, Xiang Chen, Sa Wang, Wenhao Wang, Shujie Han, and Patrick P. C. Lee.

Service

• ACM SIGOPS ATC’26 AEC Member

Teaching

Teaching Assistant at CUHK:

• CSCI4180: Introduction to Cloud Computing and Storage
  Instructor: Professor Patrick P. C. Lee
  Fall 2023, Fall 2024, Fall 2025.
• AIST3020: Introduction to Computer Systems
  Instructor: Professor Patrick P. C. Lee
  Spring 2024, Spring 2025.