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Publications

Journal Publications

  1. Chen, W, B. Linthicum, N. T. Argon, T. Bohrmann, K. Lopiano, A. Mehrotra, D. Travers, and S. Ziya, “Using Hospital Admission Predictions at Triage for Improving Patient Length of Stay in Emergency Departments,” forthcoming in Operations Research (2023). (supplement)
  2. Lin, P., N. T. Argon, Q. Cheng, C. S. Evans, B. Linthicum, Y. Liu, A. Mehrotra, M. Patel, and S. Ziya, “Disparities in emergency department prioritization and rooming of patients with similar triage acuity score,” Academic Emergency Medicine 29 (2022) 1320-1328. (supplement)
  3. Ziya, S. “Queues with no-show customers,” Queueing Systems 100 (2022) 273-275.
  4. Sun, Z., N.T. Argon, and S. Ziya, “When to Triage in Service Systems with Hidden Customer Class Identities?,” Production and Operations Management 31 (2022) 172-193. (supplement)
  5. Ouyang, H., N. T. Argon, and S.Ziya, “Assigning priorities (or not) in service systems with nonlinear waiting costs,” Management Science 68 (2022) 1233-1255.
  6. Sunar, N., Y. Tu, and S. Ziya, “Pooled vs. Dedicated Queues when Customers Are Delay-Sensitive,” Management Science 67 (2022) 3785-3802. (supplement)
  7. Cheng, Q., N. T. Argon, C. S. Evans, Y. Liu, T. F. Platts-Mills, and S. Ziya, “Forecasting Emergency Department Hourly Occupancy Using Time Series Analysis,” American Journal of Emergency Medicine 48 (2021) 177-182.
  8. Chen, W, B. Linthicum, N. T. Argon, T. Bohrmann, K. Lopiano, A. Mehrotra, D. Travers, and S. Ziya, “The Effects of Emergency Department Crowding on Triage and Hospital Admission Decisions,” American Journal of Emergency Medicine 38 (2020) 774-779.
  9. Ouyang, H., N. T. Argon, and S. Ziya, “Allocation of intensive care unit beds in periods of high demand,” Operations Research 68 (2020) 591-608.
  10. Sun, Z., N. T. Argon, and S. Ziya, “Patient triage and prioritization under austere conditions,” Management Science, 64 (2018) 4471-4489. (supplement)
  11. Mills, A., N. T. Argon, and S. Ziya, “Dynamic patient distribution to medical facilities in the aftermath of a disaster,” Operations Research, 66 (2018) 716-732. (supplement)
  12. Ahalt, V., N. T. Argon, S. Ziya, J. Strickler, and A. Mehrotra, “Comparison of emergency department crowding scores: A discrete-event simulation approach,” Health Care Management Science, 21 (2018) 144-155.
  13. Kostami, V., Kostamis, D., and S. Ziya, “Pricing and capacity allocation for shared services,” Manufacturing and Service Operations Management, 19 (2017) 230-245. (supplement)
  14. Luo, J., V. G. Kulkarni, S. Ziya, “A tandem queueing model for an appointment-based service system,” Queueing Systems, 79 (2015) 53-85.
  15. Feldman, J., N. Liu, H. Topaloglu, S. Ziya, “Appointment scheduling under patient preference and no-show behavior,” Operations Research, 62 (2014) 794-811. (supplement)
  16. Liu, N., S. Ziya, “Panel size and overbooking decisions for appointment-based services under patient no-shows,” Production and Operations Management, 23 (2014) 2209-2223. (supplement)
  17. Mills, A., N. T. Argon, S. Ziya, B. Hiestand, J. Winslow, “ReSTART: A novel framework for resource-based triage in mass-casualty events,” Journal of Special Operations Medicine, 14 (2014), 30-39.
  18. Mills, A., N. T. Argon, S. Ziya, “Resource-based patient prioritization in mass-casualty incidents,” Manufacturing and Service Operations Management, 15 (2013), 361-377. (supplement)
  19. Luo, J., V. G. Kulkarni, S. Ziya, “Appointment scheduling under patient no-shows and service interruptions,” Manufacturing and Service Operations Management, 14 (2012), 670-684. (supplement)
  20. Uzun Jacobson, E., N. T. Argon, S. Ziya, “Priority assignment in emergency response,” Operations Research 60 (2012), 813-832.
  21. Foster, E. M., S. Ziya, N. Bolia, M. Hosking, “Rehabilitation and juvenile justice policy: a mathematical modeling approach,” Mathematical Modeling and Applied Computing 3 (2012), 71-91.
  22. Foster, E. M., M. R. Hosking, S. Ziya, “A spoonful of math helps the medicine go down: an illustration of how healthcare can benefit from mathematical modeling and analysis,” BMC Medical Research Methodology (2010) 10:60.
  23. Liu, N, S. Ziya, V. G. Kulkarni, “Dynamic scheduling of outpatient appointments under patient no-shows and cancellations,” Manufacturing and Service Operations Management 12 (2010), 347-364.(supplement)
  24. Aydin, G., S. Ziya, “Personalized dynamic pricing of limited inventories,” Operations Research 57 (2009), 1523-1531. (supplement)
  25. Argon, N.T., S. Ziya, “Priority assignment under imperfect information on customer type identities,” Manufacturing and Service Operations Management 11 (2009), 674-693. (supplement)
  26. Argon, N. T., L. Ding, K. D. Glazebrook, S. Ziya, “Dynamic routing of customers with general delay costs,” Probability in the Engineering and Informational Sciences 23 (2009), 175-203.
  27. Ziya, S., “On the relationships among traffic load, capacity, and throughput for the M/M/1/m, M/G/1/m-PS, and M/G/c/c queues,” IEEE Transactions on Automatic Control 53 (2008), 2696-2701.
  28. Ziya, S., H. Ayhan, R. D. Foley, “A Note on optimal pricing for finite capacity queueing systems with multiple customer classes,” Naval Research Logistics 55 (2008), 412-418.
  29. Aydin, G., S. Ziya, “Pricing promotional products under upselling,” Manufacturing and Service Operations Management 10 (2008), 360-376. (supplement)
  30. Argon, N. T., S. Ziya, R. Righter, “Scheduling impatient jobs in a clearing system with insights on patient triage in mass-casualty incidents,” Probability in the Engineering and Informational Sciences 22 (2008), 301-332.
  31. Ziya, S., H. Ayhan, R. D. Foley, E. Pekoz, “A monotonicity result for a G/GI/c queue with balking or reneging,” Journal of Applied Probability 43 (2006), 1201-1205.
  32. Ziya, S., H. Ayhan, R. D. Foley, “Optimal prices for finite capacity queueing systems,” Operations Research Letters 34 (2006), 214-218.
  33. Ziya, S., H. Ayhan, R. D. Foley, “Relationships among three assumptions in revenue management,” Operations Research 52 (2004), 804-809.

Papers/Reports Related to COVID-19 Pandemic

  1. El Housni, O., Sumida, M., Rusmevichientong, P., Topaloglu, H., Ziya, S, “Can Testing Ease Social Distancing Measures? Future Evolution of COVID-19 in NYC”
  2. El Housni, O., Sumida, M., Rusmevichientong, P., Topaloglu, H., Ziya, S, “Future Evolution of COVID-19 Pandemic in North Carolina: Can We Flatten the Curve?”

Invited and Refereed Book Chapters

  1. Argon, N. T., J. Winslow, S. Ziya, “Triage in the Aftermath of Mass-Casualty Incidents,” Wiley Encyclopedia of Operations Research and Management Science, J. J. Cochran, L. A. Cox, Jr., P. Keskinocak, J. P. Kharoufeh, and J. C. Smith (Editors), Wiley, 2011.
  2. Ziya, S., “Markov Renewal Processes,” Wiley Encyclopedia of Operations Research and Management Science, J. J. Cochran, L. A. Cox, Jr., P. Keskinocak, J. P. Kharoufeh, and J. C. Smith (Editors), Wiley, 2011.
  3. Ziya, S., “Markov Renewal Function and Markov Renewal-Type Equations,” Wiley Encyclopedia of Operations Research and Management Science, J. J. Cochran, L. A. Cox, Jr., P. Keskinocak, J. P. Kharoufeh, and J. C. Smith (Editors), Wiley, 2011.
  4. Ziya, S., “Limit Theorems for Markov Renewal Processes,” Wiley Encyclopedia of Operations Research and Management Science, J. J. Cochran, L. A. Cox, Jr., P. Keskinocak, J. P. Kharoufeh, and J. C. Smith (Editors), Wiley, 2011.

Other Work

  1. Ziya, S., H. Ayhan, R. D. Foley, “Optimal pricing for a service facility”, Technical Report UNC/STOR/04/03, Department of Statistics and Operations Research, University of North Carolina, Chapel Hill, NC, U.S.A.
  2. Ziya, S., “Choosing the customer signal for personalized dynamic pricing of limited inventories.”