Dr. Wei Liu

Dr. Wei Liu

Associate Professor and Associate Head
Department of Aeronautical and Aviation Engineering
The Hong Kong Polytechnic University

Bio

Dr. Wei Liu is currently the Associate Head and Associate Professor, Presidential Young Scholar at the Department of Aeronautical and Aviation Engineering, The Hong Kong Polytechnic University. Prior to this, he was a faculty member at University of New South Wales, Sydney in Australia and University of Glasgow in the United Kingdom, and was a Researcher at Ecole Polytechnique Federale de Lausanne (EPFL), Switzerland. Dr. Liu received his PhD in Transportation from the Hong Kong University of Science and Technology in 2014, and his B.Eng. in Civil Engineering and Bachelor of Laws both from Tsinghua University in 2010. Dr. Liu is a recipient of the Discovery Early Career Researcher Award from the Australian Research Council. His research group mainly works in data-driven decision analytics; large-scale transport system modelling, optimisation and computing; aviation and rail system modeling; and transport economics. Dr. Liu’s research has attracted funding from Research Grants Council of Hong Kong, National Natural Science Foundation of China, and Australian Research Council.

Public Publication Profiles: Google Scholar, ORCID, Scopus, Web of Science, ResearchGate.

Research Areas

  • Data-driven Decision Analytics
  • Transport Network Modeling and Optimization
  • Transport and Aviation Economics
  • Aviation and Rail System Modelling
  • Automated and Shared Mobility
  • UAV Applications in Smart Transport and Logistics

PhD Positions and Academic Visitors

  • PhD Students: Students with background in Aviation/Transport/Civil Engineering, Computer Science, Industrial Engineering, Control Engineering, Automation, Applied Mathematics or other relevant areas are welcome to apply for our PhD or MPhil program. Please send me your CV including your education qualifications with GPA, English test scores (IELTS/TOEFL), list of publications (if any) and name and contact of at least two referees.

  • Postdoc, Visiting Students and Scholars: If your research background fits my research interests, please send me your CV including your education qualifications and list of publications (if any).

Group Members & Affiliates

  • Current members
    Runfa Wu (Postdoctoral fellow, 2023/2024 S1, from Central South University, China)
    Haoyi Fei (PhD student, 2024/2025 S1, from University of Hong Kong, Hong Kong, China)
    Huayu Xu (PhD student, 2024/2025 S1, from National University of Singapore, Singapore)
    Ziyu Gu (PhD student, 2024/2025 S1, from Nanjing University of Aeronautics and Astronautics, Nanjing, China)
    Min Yan (PhD student, 2023/2024 S2, from Harbin Institute of Technology, China)
    Xintong Li (PhD student, 2023/2024 S1, from Central South University, China)
    Xinyi Zhu (PhD student, 2023/2024 S1, from Shanghai Jiao Tong University, China)
    Yuzhen Feng (PhD student, 2023/2024 S1, from Tongji University, China)
    Yihan Gao (PhD student, 2023/2024 S1, from Central South University, China)
    Xuanji Long (MPhil student, 2022/2023 S3, from Central South University, China)
    Mingzhi Lyu (PhD student, 2022/2023 S3, from University of New South Wales, Sydney, Australia)
    Yufan Zuo (PhD student, 2022/2023 S1, from Southeast University, China)
    Qingying He (PhD student, 2022/2023 S1, from University of Edinburgh, United Kingdom)

  • Former members
    Yihan Gao (Research Assistant, 2022/2023 S1 - 2022/2-23 S3)
    Mingzhi Lyu (Research Assistant, 2022/2023 S1 - 2022/2023 S2)
    Kai Xu (PhD, 2019 T3 - 2023 T1) - Ride-sourcing markets with order cancellations
    Mingyou Ma (PhD, 2019 T2 - 2022 T3) - Comodality: Integrated passegner and freight transportation
    Bangyang Wei (PhD, 2019 T1 - 2022 T2) - Ride-sharing modeling and management
    Can Li (PhD, 2019 T1 - 2022 T2) - Data-driven mobility analytics and forecasting
    Tanapon Lilasathapornkit (PhD, 2018 T2 - 2022 T2) - Modeling and simulation of pedestrian traffic flow
    Haoning Xi (PhD, 2019 T3 - 2022 T1) - Mobility as a service and resource allocation
    Yuhui Chen (MPhil, 2020 T1 - 2021 T3) - Ride-sourcing in multimodal networks
    Runqing Zhao (MPhil, 2019 T3 - 2022 T1) - Mobility service network design for airport bus shuttle and air metro

  • Academic visitors
    Zhengrong Liu (2023.08-2023.09, PhD student, from Tsinghua University, China)
    Jing Xu (2022.12-2023.12, PhD student, from Central South University, China)
    Mingyou Ma (2022.05-2022.12, PhD student, from University of New South Wales, Sydney, Australia)
    Yihan Gao (2022.01-2022.04, MPhil student, from Central South University, China)
    Wei Wu (2018.11-2019.11, Associate Professor, from Changsha University of Science and Technology, China)

Selected Working Papers

  • Li, C., Liu, W., Yang, H. Deep Causal Inference for Understanding the Impact of Meteorological Variations on Traffic.
  • He, Q., Wu, L., Liu, W., Ma, Y. Coordinated path planning of UAVs and USVs for maritime monitoring.
  • Lyu, M., He, Q., Liu, W., Wu, L. Urban food delivery service optimisation with delivery riders and drones.
  • Liu, T.L., Xu, P., Si, B., Liu, W. Modeling and evaluating time-varying user preference of morning rail transit commuters with smart card data.
  • Wang, S., Wang, X., Yang, C., Zhang, X.N., Liu, W. Optimizing OD-based up-front discounting strategies for dynamic ride-pooling services.
  • Xu, P., Liu, T.L., Tian, Q., Si, B., Liu, W., Huang, H.J. Estimation of Schedule Preference and Crowding Perception in Urban Rail Corridor Commuting: An Inverse Optimization Method.
  • Zhong, L., Xu, G., Liu, W. Demand-driven and energy-efficient train timetable optimization with a flexible train composition strategy.
  • Qin, X., Yang, H., Liu, W. Upgrading in ride-sourcing markets with multi-class services.
  • Zhong, L., Xu, G., Liu, X., Liu, W., Yang, H. Destination-to-Gate Assignment in Oversaturated Metro Line: A New Passenger Flow Control Approach.
  • Liu, B., Ma, X., Liu, W., Ma, Z. Enhancing a carbon-trading incentive scheme for mode shifts in multi-modal transportation systems.
  • Gao, Y., Liu, W., Zhang, Z., Du, B. Optimizing parking and charging services for electric autonomous vehicles considering vehicle-to-grid facilities.
  • Zuo, Y., Liu, T.L., Liu, W. On the competition and collaboration in a multi-airport system considering ground connection between airports.
  • Liu, Q., Liu, W., Jiang, R., Han, X. On the morning commute problem with mixed autonomous vehicles and human-driven vehicles traffic under stochastic bottleneck capacity.
  • Xu, G., Liu, X., Zhong, L., Liu, W. Integrated Optimization of Train Stopping Plan, Scheduling, and Seat Allocation for High-speed Railway Systems with Social Distancing Measures.
  • Li, C., Liu, W., Yang, H. Simultaneous Multimodal Demand Imputation and Forecasting via Graph-guided Generative Network.
  • Waller, S.T., He, Q., Liu, W. Rapid post-disruption assessment of transportation network capacity and demand distribution under limited information.
  • Xu, G., Zhou, P., Liu, W., Gao, Y. Optimization of seat allocation scheme for railway systems considering social equity.
  • Xu, J., Deng, L., Gao, Y., Liu, W. Joint optimization of pricing, seat allocation and overbooking for high-speed railway system under demand uncertainty.
  • Jin, Z., Ng, K., Zhang, C., Liu, W., Zhang, F., Xu, G. A risk-averse distributionally robust optimisation approach for drone-supported relief facility location problem.
  • Xu, G., Liu, X., Zhong, L., Liu, W. Group-based Railway Seat Allocation Considering the Risk of Virus Transmission.
  • Wu, W., Zeng, B., Sun, J., Liu, W., Waller, S.T. Autonomous-Shuttle-Bus-Based Mid-block Pedestrian Crossings along Urban Streets.
  • Zhang, Z., Zhang, F., Liu, W. To park or share our autonomous vehicles?
  • Zhang, Z., Zhang, F., Liu, W. Economic analysis of parking, vehicle charging and vehicle-to-grid service in the era of electric vehicles.
  • Gong, Z., Zhang, F., Liu, W. Residential location choices and commuting patterns considering telecommuting.
  • Zheng, Z., Wang, J., Liu, W., Yang, H. Competition in complementary transport services: integrating bike sharing service with existing public transit systems.
  • Xu, K., Saberi, M., Wang, X., Liu, W. Vehicle sharing strategies for ridesourcing platforms.
  • Li, C., Bai, L., Yao, L., Waller, S.T., Liu, W.. Knowledge Adaptation with Model Sharing for Passenger Demand Forecasting.
  • Ma, M., Zhang, F., Liu, W., Dixit, V. Can urban co-modality benefit both users and operators?.
  • Zhang, Z., Zhang, F., Liu, W., Yang, H. On the service differentiation of parking sharing.
  • Wei, T., Xu, G., Liu, W., Zhang, F., Yang, H., Batley, R. Time-varying demand distribution estimation for high-speed railway by ticket booking data.

Selected Publications

  • Xu, G., Zhong, L., Liu, W. Guo, J. (2024) A flexible train composition strategy with extra-long trains for high-speed railway corridors with time-varying demand. Transportation Research Part B: Methodological, 179, 102875.
  • Li, C., Liu, W. (2023) Multimodal Transport Demand Forecasting via Federated Learning. IEEE Transactions on Intelligent Transportation Systems, forthcoming.
  • Sun, W., Zhang, F., Liu, W., He, Q. (2023) Optimal control of connected autonomous vehicles in a mixed traffic corridor. IEEE Transactions on Intelligent Transportation Systems, forthcoming.
  • Xu, G., Gao, Y., Liu, W. (2023) Pareto-improving seat allocation for high-speed railway networks with equilibrium flows. Transportation Research Part C: Emerging Technologies, 154, 104261.
  • Ma, M., Liu, W., Zhang, F., Dixit, V. (2023) On urban co-modality: Competition and cooperation among freight forwarder, freight carrier and transit operator. Transportation Research Part C: Emerging Technologies, 153, 104234.
  • Xi, H., Liu, W., Waller, S.T., Hensher, D., Kilby, P., Rey, D. (2023) Incentive-compatible mechanisms for online resource allocation in Mobility-as-a-Service systems. Transportation Research Part B: Methodological, 170, 119-147.
  • Gong, Z., Zhang, F., Liu, W., Graham, D. (2023) On the effects of airport capacity expansion under responsive airlines and elastic passenger demand. Transportation Research Part B: Methodological, 170, 48-76.
  • Xi, H., Aussel, D., Liu, W., Waller, S.T., Rey, D. (2022) Single-leader multi-follower games for the regulation of two-sided Mobility-as-a-Service markets. European Journal of Operational Research, forthcoming.
  • Zhang, F., Lindsey, R., Yang, H., Shao, C., Liu, W. (2022) Two-sided pricing strategies for a parking sharing platform: reselling or commissioning?. Transportation Research Part B: Methodological, 163, 40-63.
  • Liu, W., Zhang, F., Wang, X., Shao, C., Yang, H. (2022) Unlock the sharing economy: the case of the parking sector for recurrent commuting trips. Transportation Science, 56(2), 338-357.
  • Ma, M., Zhang, F., Liu, W., Dixit, V. (2022) A game theoretical analysis of metro-integrated city logistics systems. Transportation Research Part B: Methodological, 156, 14-27.
  • Wu, W., Liu, Y., Liu, W., Zhang, F., Dixit, V., Waller, S.T. (2022) Autonomous intersection management for connected and automated vehicles: a lane-based approach. IEEE Transactions on Intelligent Transportation Systems, 23(9), 15091-15106.
  • Li, C., Bai, L., Liu, W., Yao, L., Waller, S.T. (2022) Graph neural network for robust public transit demand prediction. IEEE Transactions on Intelligent Transportation Systems, 23(5), 4086-4098.
  • Li, C., Bai, L., Liu, W., Yao, L., Waller, S.T. (2021) A multi-task memory network with knowledge adaptation for multimodal demand forecasting. Transportation Research Part C: Emerging Technologies, 131, 103352.
  • Liu, W., Zhang, F., Yang, H. (2021) Modeling and managing the joint equilibrium of destination and parking choices under a hybrid supply of curbside and shared parking. Transportation Research Part C: Emerging Technologies, 130, 103301.
  • Wang, X., Guo, L., Wang, J., Liu, W., Zhang, X. (2021) A convex programming approach for ridesharing user equilibrium under fixed driver/rider demand. Transportation Research Part B: Methodological, 149, 33-51.
  • Jian, S., Liu, W., Wang, X., Yang, H., Waller, S.T. (2020) On integrating carsharing and parking sharing services. Transportation Research Part B: Methodological, 142, 19-44.
  • Wang, X., Liu, W., Wang, D., Yang, H., Ye, J. (2020) Customer behavioural modelling of order cancellation in coupled ride-sourcing and taxi markets. Transportation Research Part B: Methodological, 132, 358-378.
  • Liu, W., Szeto, W.Y. (2020) Learning and managing stochastic network traffic dynamics with an aggregate traffic representation. Transportation Research Part B: Methodological, 137, 19-46.
  • Zhang, X., Liu, W., Waller, S.T., Yin, Y. (2019) Modelling and managing the integrated morning-evening commuting and parking patterns under the fully autonomous vehicle environment. Transportation Research Part B: Methodological, 128, 380-407.
  • Liu, W. (2018) An equilibrium analysis of commuter parking in the era of autonomous vehicles. Transportation Research Part C: Emerging Technologies, 92, 191-207.
  • Liu, W., Zhang, F., Yang, H. (2017) Modeling and managing morning commute with both household and individual travels. Transportation Research Part B: Methodological, 103, 227-247.
  • Liu, W., Geroliminis, N. (2017) Doubly dynamics for multi-modal networks with park-and-ride and adaptive pricing. Transportation Research Part B: Methodological, 102, 162–179.
  • Liu, W., Geroliminis, N. (2016) Modeling the morning commute for urban networks with cruising-for-parking: an MFD Approach. Transportation Research Part B: Methodological, 93, 470-494.
  • Liu, W., Yin, Y., Yang, H. (2015) Effectiveness of variable speed limits considering commuters’ long-term response. Transportation Research Part B: Methodological, 81, 498-519.
  • Liu, W., Yang, H., Yin, Y. (2014) Expirable parking reservations for managing morning commute with parking space constraints. Transportation Research Part C: Emerging Technologies, 44, 185-201.
  • Yang, H., Liu, W., Wang, X., Zhang, X. (2013) On the morning commute problem with bottleneck congestion and parking space constraints. Transportation Research Part B: Methodological, 58, 106-118.