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Algorithms · Networks · Systems

Chi Zhang 张弛

Associate Professor

School of Computer Science and Information Engineering
Hefei University of Technology

Designing online algorithms with provable performance guarantees for practical networking systems.

zhangchi@hfut.edu.cn

Room 1604, Kejiao Building A
Feicuihu Campus, Hefei, China

Chi Zhang standing in a garden

01 / Introduction

About me.

I received my Ph.D. from the University of Science and Technology of China (USTC) in 2023, supervised by Prof. Xiang-Yang Li and Prof. Haisheng Tan. I am also a Humboldt Research Fellow, awarded the fellowship in 2023 with Prof. Xiaoming Fu as my host.

My research focuses on online problems in mobile edge computing and data center networks, including flow scheduling, job scheduling, and file caching. I develop online solutions with performance guarantees for practical networking problems. My work has appeared in IEEE/ACM ToN, IEEE INFOCOM, ACM MobiHoc, and IEEE ICDCS. I also serve as a reviewer for IEEE TMC.

中文简介

博士，洪堡学者，现为合肥工业大学计算机与信息学院副教授。博士毕业于中国科学技术大学，导师为李向阳教授和谈海生教授。主要研究移动边缘计算和数据中心网络中的在线问题，包括流调度、任务调度、文件缓存等，旨在针对实际中的网络问题提供具有理论性能保证的在线解决方案。相关研究成果发表在 IEEE/ACM ToN、IEEE INFOCOM、ACM MobiHoc 及 IEEE ICDCS 等计算机网络与分布式领域的国际顶级期刊和会议上，并担任 IEEE TMC 期刊审稿人。

02 / Research interests

What I work on.

Arriving tasks are assigned to a schedule by an online algorithm

Online Algorithms

Scheduling and caching with provable performance guarantees.

在线算法
An edge server connects nearby devices to the cloud

Edge Computing

Resource allocation and efficient intelligence at the network edge.

边缘计算与智能
Network switches route a highlighted flow between server racks

Data Center Networks

Flow scheduling and network optimization for distributed systems.

数据中心网络

03 / Research output

Publications.

22 papers

* Corresponding author   ·   † Co-corresponding author

22 publications

INFOCOM2026

Memory-Efficient KV Cache Optimization for Large Language Model Inference at the Edge

Chi Zhang, Haisheng Tan, Haotian Pan, Yang Xu, Haohua Du, Li Zhang, Xiaoming Fu

IEEE International Conference on Computer Communications (IEEE INFOCOM) 2026. CCF-A

PDF
TCAD2025

A Framework for Dynamic Quantum Circuit Execution: Balancing Effectiveness and Efficiency

Fangzheng Chen, Hao Fu, Mingzheng Zhu, Chi Zhang, Wei Xie, Xiang-Yang Li

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (IEEE TCAD) 2025. CCF-A

PDF
TACO2025

Ecmas+: Efficient Circuit Mapping and Scheduling for Surface Code Encoded Circuit on Quantum Cloud Platform

Mingzheng Zhu, Hao Fu, Haishan Song, Jun Wu, Chi Zhang, Wei Xie, Xiang-Yang Li

ACM Transactions on Architecture and Code Optimization (ACM TACO) 2025. CCF-A

PDF
TPDS2025

Online Container Caching for IoT Data Processing in Serverless Edge Computing

Guopeng Li, Haisheng Tan, Chi Zhang, Xuan Zhang, Guoliang Chen

IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) 2025. CCF-A

PDF
PRA2025

Efficient Quantum Circuit Execution with Continuous Distribution of Entanglement

Hao Fu, Fangzheng Chen, Mingzheng Zhu, Chi Zhang, Jun Wu, Wei Xie, Xiang-Yang Li

Physical Review A, 2025. SCI 2区

PDF
CRAD2025

边缘智能计算系统中加速推荐模型训练的样本调度机制

李国鹏, 谈海生†, 张弛†, 倪宏秋, 王子龙, 章馨月, 徐洋, 田晗, 陈国良

计算机研究与发展, 2025. CCF-A 中文

PDF
TON2025

Asymptotically Tight Approximation for Online File Caching with Delayed Hits and Bypassing

Haisheng Tan, Yi Wang, Chi Zhang *, Guopeng Li, Haohua Du, Zhenhua Han, Shaofeng H.-C. Jiang, Xiang-Yang Li

IEEE Transactions on Networking (IEEE ToN) 2025. CCF-A

PDF
TCAD2024

Effective and Efficient Parallel Qubit Mapper

Hao Fu, Mingzheng Zhu, Fangzheng Chen, Chi Zhang, Jun Wu, Wei Xie, Xiang-Yang Li

IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (IEEE TCAD) 2024. CCF-A

PDF
CRAD2024

频谱受限下容量优化的多标签并发反射通信系统

李向阳, 王山岳, 张弛, 闫宇博, 谈海生

计算机研究与发展, 2024. CCF-A 中文

PDF
TPDS2024

Communication-Efficient Regret-Optimal Distributed Online Convex Optimization

Jiandong Liu, Lan Zhang, Fengxiang He, Chi Zhang, Shanyang Jiang, Xiang-Yang Li

IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS) 2024. CCF-A

PDF
ICDE2024

Online Container Caching with Late-Warm for IoT Data Processing

Guopeng Li, Haisheng Tan, Xuan Zhang, Chi Zhang, Ruiting Zhou, Zhenhua Han, Guoliang Chen

IEEE International Conference on Data Engineering (IEEE ICDE) 2024. CCF-A

PDF
CGO2024

Ecmas: Efficient Circuit Mapping and Scheduling for Surface Code

Mingzheng Zhu, Hao Fu, Jun Wu, Chi Zhang, Wei Xie, Xiang-Yang Li

IEEE/ACM International Symposium on Code Generation and Optimization (IEEE/ACM CGO) 2024. CCF-B

PDF
TON2023

Online Approximation Scheme for Scheduling Heterogeneous Utility Jobs in Edge Computing

Chi Zhang, Haisheng Tan, Haoqiang Huang, Zhenhua Han, Shaofeng H-C Jiang, Guopeng Li, Xiang-Yang Li

IEEE/ACM Transactions on Networking (IEEE/ACM ToN) 2023. CCF-A

PDF
IWQoS2023

Online Midgress-Sensitive Traffic Allocation for Percentile Charging in Practical CDNs

Huiyou Zhan, Haisheng Tan, Huang Xu, Chi Zhang, Hongqiu Ni, Pengfei Zhang, Weihua Shan, Xiang-Yang Li

IEEE/ACM International Symposium on Quality of Service (IEEE/ACM IWQoS) 2023. CCF-B Best Paper Award Candidate

PDF
INFOCOM2023

Dynamic Resource Allocation for Deep Learning Clusters with Separated Compute and Storage

Mingxia Li, Zhenhua Han, Chi Zhang, Ruiting Zhou, Yuanchi Liu, Haisheng Tan

IEEE International Conference on Computer Communications (IEEE INFOCOM) 2023. CCF-A

PDF
INFOCOM2022

Online File Caching in Latency-Sensitive Systems with Delayed Hits and Bypassing

Chi Zhang, Haisheng Tan, Guopeng Li, Zhenhua Han, Shaofeng H-C Jiang, Xiang-Yang Li

IEEE International Conference on Computer Communications (IEEE INFOCOM) 2022. CCF-A

PDF
CSoNet2022

Online File Caching on Multiple Caches in Latency-Sensitive Systems

Guopeng Li, Chi Zhang, Hongqiu Ni, Haisheng Tan

The International Conference on Computational Data and Social Networks (CSoNet) 2022. Invited Paper

PDF
WASA2022

Cross-Model Operator Batching for Neural Network Architecture Search

Lingling Ye, Chi Zhang, Mingxia Li, Zhenhua Han, Haisheng Tan

International Conference on Wireless Algorithms, Systems, and Applications (WASA) 2022. CCF-C

PDF
TON2021

Regularization-based Coflow Scheduling in Optical Circuit Switches

Haisheng Tan, Chi Zhang, Chao Xu, Yupeng Li, Zhenhua Han, Xiang-Yang Li

IEEE/ACM Transactions on Networking (IEEE/ACM ToN) 2021. CCF-A

PDF
MobiHoc2020

Online Dispatching and Scheduling of Jobs with Heterogeneous Utilities in Edge Computing

Chi Zhang, Haisheng Tan, Haoqiang Huang, Zhenhua Han, Shaofeng H-C Jiang, Nikolaos Freris, Xiang-Yang Li

ACM International Symposium on Theory, Algorithmic Foundations, and Protocol Design for Mobile Networks and Mobile Computing (ACM MobiHoc) 2020. CCF-B

PDF
ICDCS2019

Reco: Efficient Regularization-based Coflow Scheduling in Optical Circuit Switches

Chi Zhang, Haisheng Tan, Chao Xu, Xiang-Yang Li, Shaojie Tang, Yupeng Li

IEEE International Conference on Distributed Computing Systems (IEEE ICDCS) 2019. CCF-B

PDF
ICC2018

OMCO: Online Multiple Coflow Scheduling in Optical Circuit Switch

Chao Xu, Haisheng Tan, Jiahui Hou, Chi Zhang, Xiang-Yang Li

IEEE International Conference on Communications (IEEE ICC) 2018. CCF-C

PDF

04 / Recognition

Honors & awards.

  1. 2023

    Humboldt Research Fellowship (洪堡学者, Host Professor: Prof. Xiaoming Fu)

  2. 2023

    CAS President Award, Excellence Prize (中科院院长奖优秀奖)

  3. 2022

    National Scholarship, Ph.D. Student (国家奖学金, Top 3% in School of Computer Science and Technology)

  4. 2021

    National Scholarship, Ph.D. Student (国家奖学金, Top 3% in School of Computer Science and Technology)

  5. 2017

    Graduated with Talent Program in Computer and Information Science and Technology (中国科学技术大学计算机英才班荣誉毕业)

  6. 2016

    National Scholarship, Undergraduate (国家奖学金, Top 3% in School of Computer Science and Technology)

  7. 2012

    National Olympiad in Informatics in Provinces, First Prize (NOIP, 一等奖)

  8. 2012

    National Olympiad in Informatics, Bronze Medal (NOI, 三等奖)

  9. 2011

    National Olympiad in Informatics in Provinces, First Prize (NOIP, 一等奖)