Jiheng Zhang

张季恒

Professor
Department of Industrial Engineering and Decision Analytics
Hong Kong University of Science and Technology

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About

Jiheng Zhang is a Professor and the Head of the Department of Industrial Engineering and Decision Analytics at HKUST, where he also holds a joint appointment in the Department of Mathematics. His research interests include stochastic modeling and optimization, statistical learning, numerical methods, and algorithms, with applications in operations management, large communication networks, and financial technology. He serves as an associate editor for several top journals, including Operations Research, Stochastic Systems, and Probability in the Engineering and Informational Sciences. Since 2018, he has been the Director of the Elliptic Lab, leading various applied projects with industry partners such as Huawei and Webank. He holds several patents in areas such as large-scale production planning and blockchain consensus mechanism design. He earned his Ph.D. in Operations Research from the H. Milton Stewart School of Industrial and Systems Engineering at the Georgia Institute of Technology in 2009. He also holds an M.S. in Mathematics from Ohio State University and a B.S. in Mathematics from Nanjing University.

张季恒现任香港科技大学工业工程与决策分析学系系主任，并兼任数学系教授。他的主要研究兴趣包括随机建模与优化、统计学习、数值方法和算法，及其在运营管理、大型通信网络和金融科技中的应用。他担任多个学术期刊的副主编，包括《Operations Research》、《Stochastic Systems》和《Probability in the Engineering and Informational Sciences》。自2018年以来，他担任Elliptic实验室的联合主任，致力于与行业伙伴（如华为和微众银行）合作的多个实际项目。他与这些行业合作伙伴在大规模生产规划和区块链共识机制设计方面拥有多项专利。他于2009年在佐治亚理工学院H. Milton Stewart工业与系统工程学院获得运筹学博士学位，之前在俄亥俄州立大学取得数学硕士学位，本科毕业于南京大学数学系。

Research Interests

Applied probability Stochastic optimization Reinforcement learning and bandits LLM finetuning and optimization Service systems LLM Inference Online marketplaces Dynamic pricing

Working Papers

Publications

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2009

2008

Team

PhD Graduates

Xueping Gong

2019-2024

Now Assistant Professor at School of Management, Xiamen University

Yuxuan Han

2020-2024 (with Y. Wang)

Now Research Engineer at Huawei

Feng Han

2020-2024

Now at Citic

Zhipeng Liang

2020-2024

Now at Jump Trading

Qing Zhang

2018-2023

Now Research Engineer at Huawei

Jiahao He

2017-2022 (with R. Zhang)

Now at Morgan Stanley

Guangyuan Zhang

2016-2021 (with R. Zhang)

Now Research Engineer at Huawei

Guangju Wang

2015-2019

Now Research Engineer at Alibaba

Hailun Zhang

2013-2018 (with R. Zhang)

Now Assistant Professor at Institute of Data and Decision Analytics, CUHK Shenzhen

Ergang Shan

2013-2017

Now Research Engineer at Cainiao

Kun Xie

2014-2017

Now Research Engineer at SF Technology

Zhen Xu

2012-2017 (with R. Zhang)

Now Assistant Professor at Fudan University

Jin Fang

2010-2015

Now Assistant Professor at School of Business, Shanghai Maritime University

Zhenghua Long

2011-2015

Now Assistant Professor at School of Business, Nanjing University

Jun Luo

2009-2013 (with L. Hong)

Now Professor at Antai College of Economics & Management, Shanghai Jiaotong University

Postdoctoral Fellows

Shining Wu

2015-2016

Now Assistant Professor at Faculty of Business, Hong Kong Polytechnic University

Seung Bum Soh

2014-2015

Now Assistant Professor at College of Business Administration, Sejong University

Patents

P5 Application

An Offline Auto Load Balancing Algorithm for Multiple EV Charging Piles

US-20250128634-A1 | 2025-04-24 | Jiheng Zhang, Wenzhi Kong

P4 Granted

Transaction Assignment Method and Apparatus Based on Structured Directed Acyclic Graph (DAG)

US-12079804-B2 | 2024-09-03 | Jiheng Zhang, Jiahao He, Guangju Wang, Guangyuan Zhang

P3 Granted

Method and Apparatus for Creating and Adding a Block Based on a Directed Acyclic Graph and Building a Ledger

US-11868327-B2 | 2024-01-09 | Jiheng Zhang, Jiahao He, Guangju Wang, Guangyuan Zhang

P2 已授权

数据处理方法和数据处理装置

CN111950849B | 2024-07-04 | 刘昱麟, 钟韬, 韩雄威, 张季恒, 袁明轩

P1 已授权

一种生产计划的确定方法以及装置

CN109902851B | 2023-12-19 | 钟韬, 袁明轩, 韩雄威, 曾嘉, 张季恒

Miscellaneous

Side projects and other interests.

📐

运筹学 | OR in Chinese

The story behind the elegant Chinese translation of "Operations Research" — 运筹帷幄之中，决胜千里之外.
📅

Chinese Lunar Calendar

An interactive explainer of the traditional Chinese lunisolar calendar system, including solar terms and leap months.
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LaTeX Templates

LaTeX templates for academic papers, including INFORMS journal submissions and general-purpose templates.