All Stories

  1. Optimizing Initial Screening for Colorectal Cancer Detection with Adherence Behavior

    Article • Management Science, September 2025, INFORMS

    Dr Zhichao Zheng

  2. Real-time estimated Sequential Organ Failure Assessment (SOFA) score with intervals: improved risk monitoring with estimated uncertainty in health condition for patients in intensive care units

    Article • Health Information Science and Systems, December 2024, Springer Science + Business Media

    Dr Zhichao Zheng

  3. Extubation Decisions with Predictive Information for Mechanically Ventilated Patients in the ICU

    Article • Management Science, October 2024, INFORMS

    Dr Zhichao Zheng

  4. Association between HbA1c and deep sternal wound infection after coronary artery bypass: a systematic review and meta-analysis

    Article • Journal of Cardiothoracic Surgery, February 2024, Springer Science + Business Media

    Dr Zhichao Zheng

  5. Dynamic scheduling with uncertain job types

    Article • European Journal of Operational Research, September 2023, Elsevier

    Dr Zhichao Zheng

  6. Behavioral factors associated with patients’ non-attendance: A retrospective study in an outpatient specialty clinic at a women’s and children’s hospital in Singapore

    Article • International Journal of Healthcare Management, June 2023, Taylor & Francis

    Dr Zhichao Zheng

  7. Maximizing the Benefits of an On-Demand Workforce: Fill Rate-Based Allocation and Coordination Mechanisms

    Article • Manufacturing & Service Operations Management, June 2023, INFORMS

    Dr Zhichao Zheng

  8. Effect of the Announcement of Human-to-Human Transmission on Telemedicine Services in China During COVID-19

    Article • Disaster Medicine and Public Health Preparedness, December 2022, Cambridge University Press

    Dr Zhichao Zheng

  9. On the Test Accuracy and Effective Control of the COVID-19 Pandemic: A Case Study in Singapore

    Article • INFORMS Journal on Applied Analytics, November 2022, INFORMS

    Dr Zhichao Zheng

  10. Impact of restrictive red blood cell transfusion strategy on thrombosis‐related events: A meta‐analysis and systematic review

    Article • Vox Sanguinis, March 2022, Wiley

    Dr Zhichao Zheng

  11. Stochastic Knapsack Revisited: The Service Level Perspective

    Article • Operations Research, March 2022, INFORMS

    Dr Zhichao Zheng

  12. Schedule reliability in liner shipping timetable design: A convex programming approach

    Article • Transportation Research Part B Methodological, January 2022, Elsevier

    Dr Zhichao Zheng

  13. A queueing model for customer rescheduling and no-shows in service systems

    Article • Operations Research Letters, November 2021, Elsevier

    Dr Zhichao Zheng

  14. The moderating effect of solar radiation on the association between human mobility and COVID-19 infection in Europe

    Article • Environmental Science and Pollution Research, August 2021, Springer Science + Business Media

    Dr Zhichao Zheng

  15. Effect of Renin-Angiotensin System Inhibitors on Acute Kidney Injury Among Patients Undergoing Cardiac Surgery: A Review and Meta-Analysis

    Article • Seminars in Thoracic and Cardiovascular Surgery, January 2021, Elsevier

    Dr Zhichao Zheng

  16. A simple new scoring system for predicting the mortality of severe acute pancreatitis

    Article • Medicine, June 2020, Wolters Kluwer Health

    Dr Zhichao Zheng

  17. Validation of prognostic accuracy of the SOFA score, SIRS criteria, and qSOFA score for in‐hospital mortality among cardiac‐, thoracic‐, and vascular‐surgery patients admitted to a cardiothoracic intensive care unit

    Article • Journal of Cardiac Surgery, November 2019, Wiley

    Dr Zhichao Zheng

  18. Capacity Allocation in Flexible Production Networks: Theory and Applications

    Article • Management Science, November 2019, INFORMS

    Dr Zhichao Zheng

  19. Effects of Rescheduling on Patient No-Show Behavior in Outpatient Clinics

    Article • Manufacturing & Service Operations Management, October 2019, INFORMS

    Dr Zhichao Zheng

  20. To extubate or not to extubate: Risk factors for extubation failure and deterioration with further mechanical ventilation

    Article • Journal of Cardiac Surgery, August 2019, Wiley

    Dr Zhichao Zheng

  21. Resource Pooling and Allocation Policies to Deliver Differentiated Service

    Article • Management Science, March 2017, INFORMS

    Dr Zhichao Zheng, Prof Yuanguang Zhong

  22. Least Squares Approximation to the Distribution of Project Completion Times with Gaussian Uncertainty

    Article • Operations Research, December 2016, INFORMS

    Dr Zhichao Zheng

  23. Appointment sequencing: Why the Smallest-Variance-First rule may not be optimal

    Article • European Journal of Operational Research, December 2016, Elsevier

    Dr Zhichao Zheng

  24. Distributionally robust mixed integer linear programs: Persistency models with applications

    Article • European Journal of Operational Research, March 2014, Elsevier

    Dr Zhichao Zheng

  25. Scheduling Arrivals to a Stochastic Service Delivery System Using Copositive Cones

    Article • Operations Research, June 2013, INFORMS

    Dr Zhichao Zheng

  26. Mixed 0-1 Linear Programs Under Objective Uncertainty: A Completely Positive Representation

    Article • Operations Research, June 2011, INFORMS

    Dr Zhichao Zheng