Faculty Profiles - ZHANG Jiheng | The Hong Kong University of Science and Technology

2025 5

Data Sharing in the Metaverse With Key Abuse Resistance Based on Decentralized CP-ABE

IEEE Transactions on Computers, v. 74, (3), p. 901-914
Zhang, Liang; Ou, Zhanrong; Hu, Changhui; Kan, Haibin; Zhang, Jiheng
Article

Efficient Graph Bandit Learning with Side-Observations and Switching Constraints

Proceedings of the AAAI Conference on Artificial Intelligence, v. 39, (16), p. 16871-16879
Gong, Xueping; Zhang, Jiheng
Article

Improving Blockchain Consistency Bound by Assigning Weights to Random Blocks

Operations Research, v. 73, (4), p. 2156-2176
Gong, Xueping; Zhang, Qing; Li, Huizhong; Zhang, Jiheng
Article

MADRNet: Morphology-Aware Dual-path Reversible Network for Sperm Classification

IEEE Journal of Biomedical and Health Informatics
Yang, Fan; Sun, Jingzhang; Huang, Honglan; Zhang, Liang; Zhang, Jiheng
Article

Unveiling Discrete Clues: Superior Healthcare Predictions for Rare Diseases

WWW 2025 - Proceedings of the ACM Web Conference, Association for Computing Machinery, Inc, 2025, p. 1747-1758
Zhao, Chuang; Tang, Hui; Zhang, Jiheng; Li, Xiaomeng
Conference paper

2024 5

On-Demand Ride-Matching in a Spatial Model with Abandonment and Cancellation

Operations Research, v. 72, (3), p. 1278-1297
Wang, Guangju; Zhang, Hailun; Zhang, Jiheng
Article

RL in Markov Games with Independent Function Approximation: Improved Sample Complexity Bound under the Local Access Model

Proceedings of Machine Learning Research, v. 238, p. 2035-2043
Fan, Junyi; Han, Yuxuan; Zeng, Jialin; Cai, Jianfeng; Wang, Yang; Xiang, Yang; Zhang, Jiheng
Article

Routing and Staffing in Customer Service Chat Systems with Generally Distributed Service and Patience Times

Manufacturing and Service Operations Management, v. 26, (5), p. 1674-1691
Long, Zhenghua; Tezcan, Tolga; Zhang, Jiheng
Article

Technical Note—Asymptotically Optimal Control of Omnichannel Service Systems with Pick-up Guarantees

Operations Research, v. 72, (4), p. 1739-1748
Gao, Xuefeng; Huang, Junfei; Zhang, Jiheng
Article

The Generalized c/m Rule for Queues with Heterogeneous Server Pools

Operations Research, v. 72, (6), p. 2488-2506
Long, Zhenghua; Zhang, Hailun; Zhang, Jiheng; Zhang, Zhe George
Article

2023 4

Achieving Near-optimal Regrets in Confounded Contextual Bandits

Proceedings of the International Joint Conference on Autonomous Agents and Multiagent Systems, AAMAS, v. 2023-May, p. 2643-2645
Gong, Xueping; Zhang, Jiheng
Article

Blockchain Operations in the Presence of Security Concerns

Manufacturing and Service Operations Management, v. 25, (3), p. 1117-1135
He, Jiahao; Zhang, Guangyuan; Zhang, Jiheng; Zhang, Rachel Q.
Article

Optimal Contextual Bandits with Knapsacks under Realizability via Regression Oracles

Proceedings of Machine Learning Research, v. 206, p. 5011-5035
Han, Yuxuan; Zeng, Jialin; Wang, Yang; Xiang, Yang; Zhang, Jiheng
Article

Debiasing Recommendation by Learning Identifiable Latent Confounders

KDD 2023 - Proceedings of the 29th ACM SIGKDD Conference on Knowledge Discovery and Data Mining, Association for Computing Machinery, 2023, p. 3353-3363
Zhang, Qing; Zhang, Xiaoying; Liu, Yang; Wang, Hongning; Gao, Min; Zhang, Jiheng; Guo, Ruocheng
Conference paper

2022 4

A Reduction from Linear Contextual Bandits Lower Bounds to Estimations Lower Bounds

Proceedings of Machine Learning Research, v. 162, p. 8660-8677
He, Jiahao; Zhang, Jiheng; Zhang, Rachel Q.
Article

Approximations and Optimal Control for State-Dependent Limited Processor Sharing Queues

Stochastic Systems, v. 12, (2), p. 205-225
Gupta, Varun; Zhang, Jiheng
Article

Optimal Private Streaming SCO in `_p-geometry with Applications in High Dimensional Online Decision Making

Proceedings of Machine Learning Research, v. 162, p. 8249-8279
Han, Yuxuan; Liang, Zhicong; Liang, Zhipeng; Wang, Yang; Yao, Yuan; Zhang, Jiheng
Article

Simulating Multi-Asset Classes Prices Using Wasserstein Generative Adversarial Network: A Study of Stocks, Futures and Cryptocurrency

Journal of Risk and Financial Management, v. 15, (1), article number 26
Han, Feng; Ma, Xiaojuan; Zhang, Jiheng
Article

2021 2

Consensus mechanism design based on structured directed acyclic graphs

Blockchain: Research and Applications, v. 2, (1), article number 100011
He, Jiahao; Wang, Guangju; Zhang, Guangyuan; Zhang, Jiheng
Article

Generalized Linear Bandits with Local Differential Privacy

Advances in Neural Information Processing Systems 34 - 35th Conference on Neural Information Processing Systems, NeurIPS 2021 / edited by Ranzato Marc'Aurelio; Beygelzimer Alina; Dauphin Yann; Liang Percy S.; Wortman Vaughan Jenn. Neural information processing systems foundation, 2021, p. 26511-26522
Han, Yuxuan; Liang, Zhipeng; Wang, Yang; Zhang, Jiheng
Conference paper

2020 3

Dynamic scheduling of multiclass many-server queues with abandonment: The generalized cµ/h rule

Operations Research, v. 68, (4), p. 1218-1230
Long, Zhenghua; Shimkin, Nahum; Zhang, Hailun; Zhang, Jiheng
Article

Online demand fulfillment under limited flexibility

Management Science, v. 66, (10), p. 4667-4685
Xu, Zhen; Zhang, Hailun; Zhang, Jiheng; Zhang, Rachel Q.
Article

Simple Policies with Provable Bounds for Managing Perishable Inventory

Production and Operations Management, v. 29, (11), p. 2637-2650
Zhang, Hailun; Zhang, Jiheng; Zhang, Rachel Q.
Article

2019 3

A NOTE on MANY-SERVER FLUID MODELS with TIME-VARYING ARRIVALS

Probability in the Engineering and Informational Sciences, v. 33, (3), p. 417-437
Long, Zhenghua; Zhang, Jiheng
Article

Instantaneous control of Brownian motion with a positive lead time

Mathematics of Operations Research, v. 44, (3), p. 943-965
Xu, Zhen; Zhang, Jiheng; Zhang, Rachel Q.
Article

Virtual allocation policies for many-server queues with abandonment

Mathematical Methods of Operations Research, v. 90, (3), p. 399-451
Long, Zhenghua; Zhang, Jiheng
Article

2018 1

Management of a shared-spectrum network in wireless communications

Operations Research, v. 66, (4), p. 1119-1135
Wu, Shining; Zhang, Jiheng; Zhang, Rachel Q.
Article

2017 2

Heavy-traffic approximations for a layered network with limited resources

Probability and Mathematical Statistics, v. 37, (2), p. 497-532
Aveklouris, Angelos; Vlasiou, Maria; Zhang, Jiheng; Zwart, Bert
Article

Refined models for efficiency-driven queues with applications to delay announcements and staffing

Operations Research, v. 65, (5), p. 1380-1397
Huang, Junfei; Mandelbaum, Avishai; Zhang, Hanqin; Zhang, Jiheng
Article

2016 1

A unified approach to diffusion analysis of queues with general patience-time distributions

Mathematics of Operations Research, v. 41, (3), p. 1135-1160
Huang, Junfei; Zhang, Hanqin; Zhang, Jiheng
Article

2015 2

The impact of slow ocean steaming on delivery reliability and fuel consumption

Transportation Research Part E: Logistics and Transportation Review, v. 76, p. 176-190
Lee, Chung Yee; Lee, Hau L.; Zhang, Jiheng
Article

Scaling and modeling of call center arrivals

Proceedings of the 2014 Winter Simulation Conference, WSC 2014 / edited by Tolk Andreas; Yilmaz Levent; Diallo Saikou Y.; Ryzhov Ilya O.. Institute of Electrical and Electronics Engineers Inc., 2015, p. 476-485article number 7019913
Zhang, Xiaowei; Hong, L. Jeff; Zhang, Jiheng
Conference paper

2014 2

Convergence to equilibrium states for fluid models of many-server queues with abandonment

Operations Research Letters, v. 42, (6-7), p. 388-393
Long, Zhenghua; Zhang, Jiheng
Article

Routing and staffing in customer service chat systems with impatient customers

Operations Research, v. 62, (4), p. 943-956
Tezcan, Tolga; Zhang, Jiheng
Article

2013 2

Fluid models of many-server queues with abandonment

Queueing Systems, v. 73, (2), p. 147-193
Zhang, Jiheng
Article

Staffing and control of instant messaging contact centers

Operations Research, v. 61, (2), p. 328-343
Luo, Jun; Zhang, Jiheng
Article

2012 1

Separation of timescales in a two-layered network

Final Program - 2012 24th International Teletraffic Congress, ITC 24, 2012, p. 185-192article number 6331834
Vlasiou, Maria; Zhang, Jiheng; Zwart, Bert; Van Der Mei, Rob
Conference paper

2011 1

Diffusion limits of limited processor sharing queues

Annals of Applied Probability, v. 21, (2), p. 745-799
Zhang, Jiheng; Dai, J. G.; Zwart, Bert
Article

2010 1

Numerical characterization of porous solids and performance evaluation of theoretical models via the precorrected-FFT accelerated BEM

CMES - Computer Modeling in Engineering and Sciences, v. 55, (1), p. 33-60
Yan, Z. Y.; Zhang, J.; Ye, W.; Yu, T. X.
Article

2009 1

Law of large number limits of limited processor-sharing queues

Mathematics of Operations Research, v. 34, (4), p. 937-970
Zhang, Jiheng; Dai, J. G.; Zwart, Bert
Article

2008 1

Steady state approximations of limited processor sharing queues in heavy traffic

Queueing Systems, v. 60, (3-4), p. 227-246
Zhang, Jiheng; Zwart, Bert
Article

IEDA1010	Academic and Professional Development I
IEDA1020	Academic and Professional Development II

IEDA1010	Academic and Professional Development I
IEDA1020	Academic and Professional Development II
IEDA4920	Decision Analytics Final Year Project
MATH4999	Independent Capstone Project

IEDA1010	Academic and Professional Development I
IEDA1020	Academic and Professional Development II

Research Interest

Publications

2025 5

2024 5

2023 4

2022 4

2021 2

2020 3

2019 3

2018 1

2017 2

2016 1

2015 2

2014 2

2013 2

2012 1

2011 1

2010 1

2009 1

2008 1

Article 4

Conference paper 1

Article 5

Article 3

Conference paper 1

Article 4

Article 1

Conference paper 1

Article 3

Article 3

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Article 2

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Conference paper 1

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Conference paper 1

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2019 3

2018 1

2017 2

2016 1

2015 2

2014 2

2013 2

2012 1

2011 1

2010 1

2009 1

2008 1

Teaching Assignment

Research Postgraduate (RPG) Supervision

From January 2022 to December 2025 (As of 30 December 2025)

Current RPGs

Graduated RPGs

Projects

From January 2023 to December 2025

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