EMPLOYMENT

• 2014－Present: Professor, School of Economics and Management, Tongji University
• 2011－2013: Assistant Professor, Department of Industrial Engineering & Management, Peking University

 

RESEARCH AREAS

• Theories: Large-scale Combinatorial Optimization, Linear & Integer programming, Degeneracy, Machine Learning
• Applications: Aviation Operations Research, Transportation, Logistics, and Scheduling

 

RESEARCH PROJECTS

Government Sponsored Grant as PI

PI, “Airline Operations Management”, Continuation Projects of Distinguished Young Scientist Fund, National Natural Science Foundation of China, 2024-2028.

PI, “Integrated Operation Optimization and Innovation for Civil Aviation”, Key Project of National Natural Science Foundation of China, 2023-2027.

PI, “Large Scale Combinatorial Optimization Problems in Airline Operations Management”, Distinguished Young Scientist Fund, National Natural Science Foundation of China, 2019-2023.

PI, “Airline Disruption Management, Model and Algorithms”, Shanghai Education Commission, China, 2018-2020.

PI, “Airline Operations Management”, Excellent Young Scientist Fund, National Natural Science Foundation of China, 2015-2017.

PI, “A rotation tour network model for the weekly aircraft maintenance routing problem and the integration with the weekly fleet assignment”, Youth Fund of National Natural Science Foundation of China, 2013-2015.

PI, “A cooperative decision-making model for the flight conflict resolution problem in busy air routes of China”, New Teachers' Fund for Doctor Stations, Ministry of Education, China, 2013-2015.

 

Industrial Sponsored Grant as PI

Industrial Projects with more than 13 Chinese airlines and two airports, including China Southern Airlines, China Eastern Airlines, Air China, Xiamen Airlines, Sichuan Airlines, Juneyao Airlines, SF Airlines, LoongAir, Chengdu Airlines, China Express, JDL Airlines, YTO Cargo Airlines, China Cargo Airlines, Xiamen Airport, Fuzhou Airport, etc.

 

REFEREED JOURNAL PAPERS (INFORMS Journal on Computing×3, Transportation Science×4, Transportation Research Part B×5, EJOR×6)

*: corresponding author; __: my advised PhD students/postdocs

A. Aviation Management

A1. L. Huang, W. Wang, Y. Su*, F. Li, Z. Liang, Integrated Aircraft Routing and Cargo Routing Problem for Combination Airlines. Transportation Research Part B, vol 188, 103063, 2024.

A2. Z. Zhang*, Y. Che, Z. Liang, Split-demand multi-trip vehicle routing problem with simultaneous pickup and delivery in airport baggage transit. European Journal of Operational Research, vol 312(3), pages 996-1010, 2024.

A3. J. Zhou, Z. Liang, Integrated airline fleet introduction and assignment under a daily route-based network. Annals of Operations Research, online first, pages, 1-31, 2024.

A4. S. Zhu, L. Zheng, K. Cai, Y. Xiong, Z. Liang, W. Du, Optimizing aircraft-gate reassignment following airport disruptions: A hierarchical column-and-row generation approach, Chinese Journal of Aeronautics, online first, 2024.

A5. L. Huang, F. Xiao*, J. Zhou, Z. Duan, H Zhang, Z. Liang, A machine learning based column-and-row generation approach for integrated air cargo recovery problem. Transportation Research Part B, vol 178, 102846, 2023.

A6. W. Wang, K. Xie, S. Guo, W. Li, F. Xiao and Z. Liang*, A shift-based model to solve the integrated staff rostering and task assignment problem with real-world requirements, European Journal of Operational Research, vol 310(1), pages 360-378, 2023.

A7. W. Du, S. Zhu, L. Tong, K. Cai, and Z. Liang, Robust gate assignment to minimise aircraft conflicts, Transportmetrica B, vol 11(1), pages 1161-1185, 2023.

A8. J. Wang, G. Song, Z. Liang, E. Demeulemeester, X. Hu, and J. Liu, Unrelated parallel machine scheduling with multiple time windows: An application to earth observation satellite scheduling, Computers & Operations Research, vol 149, 106010, 2023.

A9. 谢可欣，徐根焰，苏艺，梁哲*, 飞机维修计划编排问题的研究综述, 运筹与管理, 第32卷第十期, 233-240, 2023.

A10. F. Xiao, S. Guo, L. Huang, L. Huang, and Z. Liang*, Integrated aircraft tail assignment and cargo routing problem with through cargo consideration, Transportation Research Part B, vol 168, pages 328-351, 2022.

A11. Y. Su, K. Xie, H. Wang, Z. Liang*, W. Chaovalitwongse, and P. Pardalos, Airline disruption management: a review of models and solution methods, Engineering, vol 7(4), pages 435-447, 2021.

A12. L. Zhou, Z. Liang*, C-A. Chou, and W. Chaovalitwongse, Airline planning and scheduling: models and solution methodologies, Frontiers of Engineering Management, vol 7(1), pages 1-26, 2020.

A13. Z. Liang, F. Xiao, X. Qian*, L. Zhou. X. Jin, X. Lu, and S. Karichery, A column generation-based heuristic for aircraft recovery problem with airport capacity constraints and maintenance flexibility, Transportation Research Part B, vol 113, 70-90, 2018.

A14. Zhang, F. Xie, K. Huang, T. Wu, Z. Liang*, MIP models and a hybrid method for the capacitated air-cargo network planning and scheduling problems, Transportation Research Part E, vol 103, pages 158-173, 2017.

A15. Z. Liang, Y. Feng, T. Wu, X. Zhang, and W. A. Chaovalitwongse, Robust weekly aircraft maintenance routing problem and the extension to the tail assignment problem, Transportation Research Part B, vol 78, pages 238-259, 2015.

A16. Z. Liang*, W. A. Chaovalitwongse, and E. A. Elsayed, Sequence assignment model for the flight conflict resolution problem, Transportation Science, vol 48(3), pages 351-372, 2014.

A17. Z. Liang*, and W. A. Chaovalitwongse, A network-based model for the integrated weekly aircraft maintenance routing and fleet assignment problem, Transportation Science, vol 47(4), pages 493-507, 2013.

A18. Z. Liang, W. A. Chaovalitwongse, H. C. Huang, and E. L. Johnson, On a new rotation-tour network model for aircraft maintenance routing problem, Transportation Science, vol 45(1), pages 109-120, 2011.

A19. Z. Liang, W. A. Chaovalitwongse, A. D. Rodriguez, D. E. Jeffcoat, D. A. Grundel, and J. K. O'Neal, Optimization of spatiotemporal clustering for target tracking from multisensor Data, IEEE Transactions on Systems, Man, and Cybernetics Part C: Applications and Reviews, vol 40(2), pages 176-188, 2010.

 

B. Transportation and Logistics Management

B1. H. Pan, L.Yang*, Z. Liang, H. Yang, New exact algorithm for the integrated train timetabling and rolling stock circulation planning problem with stochastic demand, European Journal of Operational Research, online first, 2024.

B2. C. Wang, L. Miao, C. Zhang*, T. Wu, Z. Liang, Robust optimization for the integrated berth allocation and quay crane assignment problem, Naval Research Logistics, vol 71, 452-476, 2024.

B3. H. Pan, L. Yang*, Z. Liang*, Demand-oriented integration optimization of train timetabling and rolling stock circulation planning with flexible train compositions: A column-generation-based approach, European Journal of Operational Research, vol 305, 184-206, 2022.

B4. T. Wu, C. Zhang*, W. Chen, Z. Liang, X. Zhang, Unsupervised learning-driven mathheuristic for production-distribution problems, Transportation Science, vol 56(6), 1677-1702, 2022.

B5. H. Pan, Z. Liu, L. Yang*, Z. Liang, Q. Wu, S. Li, A column generation-based approach for integrated vehicle and crew scheduling on a single metro line with the fully automatic operation system by partial supervision, Transportation Research Part E, vol 152, 102406, 2021.

B6. K. Liu*, H. Gao, Z. Liang, M. Zhao, and C. Li, Optimal charging strategy for large-scale electric buses considering resource constraints, Transportation Research Part D, vol 99, 103009, 2021.

B7. Y. Zheng, X. Zhang*, and Z. Liang, Multimodal subsidy design for network capacity flexibility optimization, Transportation Research Part A, vol 140(5), pages 15-35, 2020.

B8. T. Wu, F. Xiao, C. Zhang, D. Zhang, and  Z. Liang*, Regression and extrapolation guided optimization for production–distribution with ship–buy–exchange options, Transportation Research Part E, vol 129, 15-37, 2019.

B9. L. Zhen, Z. Liang, D. Zhuge, L. H. Lee, and E. P. Chew, Daily berth planning in a tidal port with channel flow control, Transportation Research Part B, vol 106, pages 193-217, 2017.

B10. Y. Song, J. Zhang, Z. Liang, C. Ye, An exact algorithm for the container drayage problem under a separation mode, Transportation Research Part E, vol 106, pages 231-254, 2017.

B11. Y. He, T. Wu, C. Zhang, and Z. Liang, An improved MIP heuristic for the intermodal hub location problem, Omega, vol 57, pages 203-211, 2015.

B12. H. C. Lau, and Z. Liang, Pickup and delivery problem with time windows, algorithms and test case generation. International Journal on Artificial Intelligence Tools, vol 11(3), pages 455-472, 2002.

 

C. Manufacturing

C1. T. Wu, L. Huang, Z. Liang, X. Zhang, and C. Zhang, A supervised learning-driven heuristic for solving the facility location and production planning problem, European Journal of Operational Research, vol 301(4), 785-796, 2022.

C2. D. Wang, F. Xiao, L. Zhou*,  and Z. Liang, Two-dimensional skiving and cutting stock problem with setup cost based on column-and-row generation, European Journal of Operational Research, vol 286(2), 547-563, 2020.

C3. T. Wu, Z. Shi, Z. Liang, X. Zhang, and C. Zhang, Dantzig–Wolfe decomposition for the facility location and production planning problem, Computers & Operations Research, vol 124(4), 105068, 2020.

C4. T. Wu, F. X., C. Zhang, Y. He, Z. Liang*, The green capacitated multi-item lot sizing problem with parallel machines, Computers & Operations Research, vol 106, pages 149-164, 2018.

C5. T. Wu, Z. Liang*, and C. Zhang, Analytics optimization for the capacitated multi-item lot sizing problem with non-identical machines, INFORMS Journal on Computing, vol 30(2), pages 236-258, 2018.

C6. T. Wu, K. Akartunalı, R. Jans, and Z. Liang*, Progressive selection method for the coupled lot-sizing and cutting-stock problem, INFORMS Journal on Computing, vol 29(3), pages 523-543, 2017.

C7. Y. Pan, Z. Liang, Dual relaxations of the time-indexed ILP formulation for min-sum scheduling problems, Annals of Operations Research, vol 249(1), pages 197-213, 2017.

C8. Z. Liang, Y. He, T. Wu, C. Zhang, An informative column generation and decomposition method for a production planning and facility location problem, International Journal of Production Economics, vol 170 (A), pages 88-96, 2015.

C9. T. Wu, C. Zhang, Z. Liang, and S. C. H. Leung, A Lagrangian relaxation-based method and models evaluation for multi-level lot sizing problems with backorders, Computers & Operations Research, vol 40, pages 1852-1863, 2013.

 

D. Misc

D1. C. A. Chou, Z. Liang, W. A. Chaovalitwongse, T. Berger-Wolf, B. Dasgupta S. Sheikh, S. L. Putrevu, M. V. Ashley, and I. C. Caballero, Column generation framework of nonlinear similarity model for reconstructing sibling groups, INFORMS Journal on Computing, vol 27(1), pages 35-47, 2015.

D2. Z. Liang, C. Lee, and W. A. Chaovalitwongse, Mathematical programming approaches for dual multicast routing problem with multilayer risk constraints, Annals of Operations Research, vol 203, pages 101-118, 2013.

D3. Z. Liang, and W. A. Chaovalitwongse, A multicast problem with shared risk cost, Optimization Letters, vol 6(3), pages 571-584, 2012.

D4. Z. Liang, and W. A. Chaovalitwongse, Bounds of redundant multicast routing problem with SRLG-diverse constraints: edge, path and tree models, Journal of Global Optimization, vol 38(2), pages 345-355, 2010.

D5. Z. Liang, W. A. Chaovalitwongse, M. Cha, and S. B. Moon. Redundant multicast routing in multilayer networks with shared risk resource groups: complexity, models and algorithms, Computers & Operations Research, vol 37(10), pages 1731-1739, 2010.

D6. A. D. Rodriguez, W. A. Chaovalitwongse, Z. Liang, H. Singhal, and H. Pham, Master defect record retrieval using network-based feature association, IEEE Transactions on Systems, Man, and Cybernetics Part C: Applications and Reviews, vol 40(3), pages 319-329, 2010.

 

BOOK & BOOK CHAPTERS

E1. Liang, W. A. Chaovalitwongse, and L. Shi, Supply Chain Management and Logistics: Innovative Strategies and Practical Solutions, CRC Press, 2015.

E2. Liang, and W. A. Chaovalitwongse, The Aircraft Maintenance Routing Problem, In W. A. Chaovalitwongse, K. C. Furman and P. M. Pardalos, editors, Optimization and Logistics Challenges in the Enterprise, pages 327-348, Springer, New York, 2009.

E3. Cha, W. A. Chaovalitwongse, Z. Liang, J. Yates, A. Shaikh, and S. B. Moon, Integer Linear Programs for Routing and Protection Problems in Optical Networks, In C. A. Floudas, P. M. Pardalos, editors, Encyclopedia of Optimization, Second Edition, pages 1610-1617, Springer, New York, 2009.

E4. W. A. Chaovalitwongse, H. Pham, S. Hwang, Z. Liang, and C. H. Pham, Recent Advances in Data Mining for Categorizing Text Records, In H. Pham, editors, Recent Advances in Reliability, pages 223-240, Springer, New York, 2008.

 

TEACHING

Undergraduate: Data Structure and Algorithms

Graduate: Advanced Linear Programming, Integer Programming, Stochastic Programming

Associate Editor

Engineering, Frontiers of Engineering Management, Journal of Management Science in China (in Chinese), Journal of Systems and Management (in Chinese)

Guest Editor

Guest Editor to Annals of Operations Research Special Volume: Applied Optimization and Data Mining, Dedicated to Dr. Panos Pardalos on the Occasion of His 60th Birthday

Membership in Societies/Organizations

Member of Institute for Operations Research and the Management Sciences (INFORMS)

Member of Institute of Electrical and Electronics Engineers (IEEE)

Member of Institute of Industrial Engineering (IIE)

Ad-hoc Reviewer:

Annals of Operations Research, Computer Networks, Computers & Industrial Engineering, Computers & Operations Research, Engineering, Engineering Applications of Artificial Intelligence, European Journal of Operational Research, Expert Systems with Applications, Heliyon, IEEE Transactions on Automatic Control, IEEE Transactions on Automation Science and Engineering, IIE Transactions, International Journal of Logistics, Journal of Air Transportation Management, Journal of Applied Mathematics, Journal of Advanced Transportation, Journal of Business Economics and Management, Journal of Combinatorial Optimization, Journal of Global Optimization, Journal of Scheduling, Networks, OMEGA, Operations Management Research, Operations Research, Operational Research, Optical Switching and Networking, Optimization Letters, Transportation Research Part B, Transportation Research Part C, Transportation Research Part E, Transportation Science, Transportmetrica A, Transportmetrica B

Awards received after graduation (2011-present):

Continuation Projects of Distinguished Young Scientist, National Natural Science Foundation of China, 2024.

Shanghai Outstanding Academic Leader, Science and Technology Commission of Shanghai Municipality, 2019.

Distinguished Young Scientist, National Natural Science Foundation of China, 2018.

Dawn Scholar, Shanghai Municipal Education Commission, China, 2017.

Winner (1/1645), Tianchi AI Competition for Aviation, Alibaba Group, 2017.

Winner (student advisor), Sabre China College Competition in Solving Airline Optimization Problems, 2016.

Excellent Young Scientist, National Natural Science Foundation of China, 2014.

 

Awards received as a PhD student (2006-2011):

Winner for Outstanding Graduate Student Award in the Department of Industrial & Systems Engineering, Rutgers University, 2011.

Winner of the Annual INFORMS NJ Chapter Student Contest, 2010.

Honorable Mention for Outstanding Graduate Student Award in the Department of Industrial & Systems Engineering, Rutgers University, 2010.

Honorable Mention of the Annual INFORMS NJ Chapter Student Contest, 2009 (together with C. A. Chou).

Engineering Fellowship, Rutgers University, 2006-2007.