Publications

You can also find my articles on my Google Scholar profile.
  1. Time-Varying Physician Productivity and Implications for Emergency Department Modeling and Staffing (2026)
    Z Sun, R Liu, H Ouyang
    Manufacturing & Service Operations Management (forthcoming)
  2. Impact of Announced Wait Time Information on Emergency Department Overcrowding Mitigation: A Simulation Study (2026)
    C Zou, Y Zhang, H Ouyang, Z Sun
    Journal of the American Medical Informatics Association 33 (6), 1112–1120
  3. Patient Sensitivity to Emergency Department Waiting Time Announcements (2025)
    E Park, H Ouyang, J Wang, S Savin, SC Leung, T Rainer
    Manufacturing & Service Operations Management 27 (6), 1740–1759
  4. Service-Level Computation in Time-Varying Queueing System with Priorities: Application to Physician Staffing in the Emergency Department (2025)
    R Liu, H Ouyang, C Wang, X Xie
    IISE Transactions 57 (5), 556–572
  5. Physician Scheduling in Case Managers Style Emergency Departments: Machine Learning-Aided Solution Approaches (2025)
    R Liu, B Zhou, S Wang, H Ouyang
    European Journal of Operational Research 327 (1), 326–339
  6. Exact Algorithm and Machine Learning-Based Heuristic for the Stochastic Lot Streaming and Scheduling Problem (2023)
    R Liu, C Wang, H Ouyang, Z Wu
    IISE Transactions 57 (4), 408–422
  7. Assigning Priorities (or Not) in Service Systems with Nonlinear Waiting Costs (2022)
    H Ouyang, NT Argon, S Ziya
    Management Science 68 (2), 1233–1255
  8. The Impact of Emergency Department Crowding on Admission Decisions and Patient Outcomes (2022)
    H Ouyang, J Wang, Z Sun, E Lang
    American Journal of Emergency Medicine 51, 163–168
  9. Scheduling of Physicians with Time-Varying Productivity Levels in Emergency Departments (2021)
    F Zaerpour, M Bijvank, H Ouyang, Z Sun
    Production and Operations Management 31 (2), 645–667
  10. Allocation of Intensive Care Unit Beds in Periods of High Demand (2020)
    H Ouyang, NT Argon, S Ziya
    Operations Research 68 (2), 591–608
  11. Simulation-based Predictive Analytics for Dynamic Queueing Systems (2017)
    H Ouyang, BL Nelson
    2017 Winter Simulation Conference (WSC), 1716–1727
  12. Prioritization in Service Systems with Nonlinear Delay Costs (2016)
    H Ouyang
    PhD thesis, University of North Carolina at Chapel Hill