• School of Humanities & Social Science

    • Professor LIU Hai （劉海教授）
    BSc (SCUT)
    MSc (SCUT)
    PhD (CityU)

    Associate Dean (Research), School of Decision Science
    Head and Professor, Department of Computer Science

    Tel : (852) 3963 5375
    Email :
    hliu@hsu.edu.hk


    Prof Liu is a Professor with Department of Computer Science, The Hang Seng University of Hong Kong (HSUHK). Before joining HSUHK, he held several academic posts at University of Ottawa and Hong Kong Baptist University. Prof Liu received PhD in Computer Science at City University of Hong Kong, and received MSc and BSc in Applied Mathematics at South China University of Technology. His research interests include wireless networking, cloud computing, artificial intelligence and algorithm design and analysis. He has about 100 publications/patents in these areas. He was an Associate Editor for IEEE Transactions on Cloud Computing. His Erdős number is 3.

    Major discipline(s)Teaching AreasResearch InterestsPublicationsExternal Research Funding
    TopMajor discipline(s)
    • Computer Science
    TopTeaching Areas
    • Computer Science
    TopResearch Interests
    • Robotic Networks, Cognitive Radio Networks, Cloud Computing, Artificial Intelligence, Algorithm Design and Analysis
    TopPublications

    ……….Selected Journal Publications……….

    • Qiang Wang, Xinxin Mei, Hai Liu, Yiu-Wing Leung, Zongpeng Li, and Xiaowen Chu, “Energy-aware Non-preemptive Task Scheduling with Deadline Constraint in DVFS-enabled Heterogeneous Clusters,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol 33, no. 12, Dec 2022.
    • Yue Wang, Linkai Luo, and Hai Liu, “COVID-19 Personal Health Mention Detection from Tweets Using Dual Convolutional Neural Network,” Expert Systems with Applications, DOI: 10.1016/j.eswa.2022.117139, vol. 200, Aug 2022.
    • Yue Wang, Linkai Luo, and Hai Liu, “Bridging The Semantic Gap Between Customer Needs And Design Specifications Using User-generated Content,” IEEE Transactions on Engineering Management (IEEE TEM), DOI: 10.1109/TEM.2020.3021698, pp. 1-13, Sept 2020.
    • Chenjian Liu, Qiang Wang, Xiaowen Chu, Yiu-Wing Leung, and Hai Liu, “ESetStore: An Erasure-coded Storage System with Fast Data Recovery,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 31, no. 9, pp. 2001-2016, 2020.
    • Haitao zhao, Hai Liu, Yiu-Wing Leung, and Xiaowen Chu, “Self-Adaptive Collective Motion of Swarm Robots,” IEEE Transactions on Automation Science and Engineering (IEEE T-ASE), vol. 15, no. 4, pp. 1533-1545, Jun 2018.
    • Fusang Zhang, Hai Liu, Yiu-Wing Leung, Xiaowen Chu, and Beihong Jin, “Community-Based Bus System as Routing Backbone for Vehicular Ad Hoc Networks,” IEEE Transactions on Mobile Computing (IEEE TMC), vol. 16, no. 8, pp. 2132-2146, Aug 2017.
    • Fusang Zhang, Beihong Jin, Zhaoyang Wang, Hai Liu, Jiafeng Hu, and Lifeng Zhang, “On Geocasting over Urban Bus-based Networks by Mining Trajectories,” IEEE Transactions on Intelligent Transportation Systems (IEEE T-ITS), vol. 17, no. 6, pp. 1734-1747, Jun 2016.
    • Lu Yu, Hai Liu, Yiu-Wing Leung, Xiaowen Chu, and Zhiyong Lin, “Multiple Radios for Fast Rendezvous in Cognitive Radio Networks,” IEEE Transactions on Mobile Computing (IEEE TMC), vol. 14, no. 9, pp. 1917-1931, Sept 2015.
    • Zhiyong Lin, Hai Liu, Xiaowen Chu, Yiu-Wing Leung, and Ivan Stojmenovic, “Constructing Connected-Dominating-Set with Maximum Lifetime in Cognitive Radio Networks,” IEEE Transactions on Computers (IEEE TC), DOI: 10.1109/TC.2013.77, 28 Mar 2013.
    • Zhiyong Lin, Hai Liu, Xiaowen Chu, Yiu-Wing Leung, and Ivan Stojmenovic, “Enhanced Jump-Stay Rendezvous Algorithm for Cognitive Radio Networks,” IEEE Communications Letters, vol. 17, no. 9, pp. 1742-1745, 2013.
    • Hai Liu, Xiaowen Chu, Yiu-Wing Leung, Rui Du, “Minimum-Cost Sensor Placement for Required Lifetime in Wireless Sensor-Target Surveillance Networks,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 24, no. 9, pp. 1783-1796, 2013.
    • Hai Liu, Zhiyong Lin, Xiaowen Chu, Yiu-Wing Leung, “Jump-Stay Rendezvous Algorithm for Cognitive Radio Networks,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 23, no. 10, pp. 1867-1881, Oct 2012. (The Spotlight Paper for the October 2012 issue of the IEEE TPDS)
    • Hai Liu, Xiaowen Chu, Yiu-Wing Leung, Xiaohua Jia, Peng-Jun Wan, “General Maximal Lifetime Sensor-Target Surveillance Problem and Its Solution,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 22, no. 10, pp. 1757-1765, 2011.
    • Hai Liu, Xiaowen Chu, Yiu-Wing Leung, Rui Du, “Simple Movement Control Algorithm for Bi-Connectivity in Robotic Sensor Networks,” IEEE Journal on Selected Areas in Communications (IEEE JSAC), vol. 28, no. 7, pp. 994-1005, 2010.
    • Hai Liu, Miodrag Bolic, Amiya Nayak, Ivan Stojmenovic, “Taxonomy and Challenges of Integration of RFID and Wireless Sensor Networks,” IEEE Network, vol. 22, no. 6, pp. 26-32, 2008.
    • Hai Liu, Xiaohua Jia, Peng-Jun Wan, Xinxin Liu, Frances Yao, “A Distributed and Efficient Flooding Scheme Using 1-hop Information in Mobile Ad Hoc Networks,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 18, no. 5,  pp. 658-671, May 2007.
    • Hai Liu, Xiaohua Jia, Peng-Jun Wan, Chih-Wei Yi, S. Kami Makki, Niki Pissinou, “Maximizing Lifetime of Sensor Surveillance Systems,” IEEE/ACM Transactions on Networking (IEEE/ACM ToN), vol. 15, no. 2, pp. 334-345, Apr. 2007.
    • Hai Liu, Peng-Jun Wan, Xiaohua Jia, “Maximal Lifetime Scheduling for Sensor Surveillance Systems with K Sensors to 1 Target,” IEEE Transactions on Parallel and Distributed Systems (IEEE TPDS), vol. 17, no. 12, pp. 1526-1536, Dec. 2006.
    • Deying Li, Xiaohua Jia, Hai Liu, “Energy Efficient BroadCast Routing in Static Ad Hoc Wireless Networks,” IEEE Transactions on Mobile Computing (IEEE TMC), vol. 3, no. 2, pp. 144-151, Apr.-Jun. 2004.

    ……….Selected Conference Publications……….

    • Shujin Ye, Hai Liu, Yiu-Wing Leung, and Xiaowen Chu, “Reinsurance-Emulated Collaboration Mechanism in Cloud Federation,” in Proceedings of IEEE Cloud 2017, Honolulu, Hawaii, USA, 25-30 June, 2017. (short paper)
    • Xinxin Mei, Xiaowen Chu, Hai Liu, Yiu-Wing Leung, and Zongpeng Li, “Energy Efficient Real-time Task Scheduling on CPU-GPU Hybrid Clusters,” in Proceedings of IEEE INFOCOM 2017, Atlanta, GA, USA, 1-4 May, 2017.
    • Fusang Zhang, Hai Liu, Yiu-Wing Leung, Xiaowen Chu, Beihong Jin, “Community-based Bus System as Routing Backbone for Vehicular Ad Hoc Networks,” in Proceedings of IEEE ICDCS 2015, Hilton Downtown, Columbus, Ohio, USA, 29 Jun.-2 Jul., 2015.
    • Jian Zhao, Xiaowen Chu, Hai Liu, Yiu-Wing Leung, Zongpeng Li, “Online Procurement Auctions for Resource Pooling in Client-Assisted Cloud Storage Systems,” in Proceedings of IEEE INFOCOM 2015, Hong Kong, 26 Apr-1 May, 2015.
    • Zhiyong Lin, Hai Liu, Xiaowen Chu, Yiu-Wing Leung, “Jump-Stay Based Channel-hopping Algorithm with Guaranteed Rendezvous for Cognitive Radio Networks,” in Proceedings of IEEE INFOCOM 2011, Shanghai, China, 10-15 Apr. 2011.
    • Hai Liu, Peng-Jun Wan, Xiaohua Jia, Xinxin Liu, Frances Yao, “Efficient Flooding Scheme Based on 1-hop Knowledge in Mobile Ad Hoc Networks,” in Proceedings of INFOCOM 2006, Barcelona, Spanish, 23-29 Apr. 2006.
    • Hai Liu, Peng-Jun Wan, Chih-Wei Yi, Xiaohua Jia, Sam Makki, Niki Pissinou, “Maximal Lifetime Scheduling in Sensor Surveillance Networks,” in Proceedings of INFOCOM 2005, Miami, USA, 13-17 Mar. 2005.
    TopExternal Research Funding
    • PI, “Generating Novel Customer Needs for New Product Development,” UGC/FDS14/E08/23, HK$1,360,500, 1 Jan 2024 – 31 Dec 2026.
    • PI, “Enhancing Wireless Information Freshness via Physical-Layer Network Coding and Non-Orthogonal Multiple Access,” UGC/FDS14/E02/21, HK$1,143,229, 1 Jan 2022 – 31 Dec 2024.
    • PI, “Towards Adaptive Federated Learning Against Gradient Leakage Attacks,” RGC RMGS, $2,349,000.00, 1 Oct 2023 – 30 Sep 2026.
    • PI, “Self-adaptive Collective Motion of Swarm Robots,” UGC/FDS14/E01/17, HK$848,262, 1 Jan 2018 – 30 Jun 2020.
    • PI, “Distributed Traffic Control and Navigation System for Next-Generation Vehicular Ad Hoc Networks,” GRF, HKBU211513, HK$500,000, 1 Sept 2013 – 31 Aug 2015.
    • PI, “Maximizing Lifetime of Sensor-Target Surveillance in Wireless Sensor Networks,” RGC, HKBU211009, HK$440,000, 1 Aug 2009 – 31 July 2011.