Gabriel Zayas-Cabán

Associate Professor
University of Wisconsin
zayascaban@wisc.edu

Gabriel is an Associate Professor in the Industrial and Systems Engineering Department at the University of Wisconsin-Madison. He also holds an affiliate appointment with the BerbeeWalsh Department of Emergency Medicine in the School of Medicine and Public Health. His work spans healthcare delivery, stochastic modeling and optimization, and causal inference. His recent focus is on causal inference methods to evaluate the use of predictive models in healthcare. Before coming to Wisconsin, Gabriel was a President's Postdoctoral Fellow at the University of Michigan and completed his Ph.D. at Cornell University's Center for Applied Mathematics, advised by Professor Mark E. Lewis. He received his B.A. in Mathematics from the University of South Florida.

Curriculum Vitae

Submitted Papers

  • Odeh-Covertier, V., G. Zayas-Cabán, B.W. Patterson, and A.L. Cochran. ``Designing a Quasi-experiment to Study the Clinical Impact of Adaptive Risk Prediction Models." (Preprint)
  • Zayas-Cabán G. and A.L. Cochran. ``A Randomized Routing Control for a Non-Stationary Finite Horizon Multi-Class and Multi-Server Queueing System."

Recent Publications

  • Cochran, A.L., S.A. Alvarez-Avendano, F. Acosta-Perez, K.E. Kocher, B.W. Patterson, and G. Zayas-Cabán. ``A Practical Guide to Causal Inference in Healthcare Operations using SWIGs." Production and Operations Management.
  • Cochran, A.L., J.C. David-Gomez, and G. Zayas-Cabán (2026). ``Unveiling Human Bias in Sequential Decision Making: A Causal Inference Approach for Stochastic Service Systems." Stochastic Systems, 16(2), 186-209. (Paper)
  • Nieser, K., B.S. Ortiz-Torres, B.S., G. Zayas-Cabán, A.L. Cochran (2025). ``REMLA: An R Package for Robust Expectation-Maximization Estimation for Latent Variable Models." Software X, 30, 102112. (Paper)
  • Acosta-Perez, F., J.J. Boutilier, G. Zayas-Cabán, S. Adelaine, F. Liao, B.W. Patterson (2025). ``Towards Real Time Discharge Volume Predictions in Multisite Healthcare Systems." Journal of Medical Internet Research, 27, e63765. (Paper)
  • Alvarez-Avendano, S.A. , A.L. Cochran, V.Y. Odeh-Couvertier, B.W. Patterson, M.N. Shah, and G. Zayas-Cabán (2025). ``Revisits, Readmission, and Mortality From Emergency Department Admissions for Older Adults With Vague Presentations: Longitudinal Observational Study." JMIR Aging, 8(1), e55929. (Paper)
  • Alvarez-Avendano, S.A., O. Alagoz, J. Oruongo, and G. Zayas-Cabán (2025). ``Optimizing Patient Transitions to Skilled Nursing Facilities." IISE Transactions, 57(3), 261-274. (Paper)
  • David-Gomez, J.C., A.L. Cochran, B.W. Patterson, and G. Zayas-Cabán (2024). ``Evaluation of a Split Flow Model for the Emergency Department." Manufacturing & Service Operations Management, 26(3), 911-930. (Paper) (Supplementary Material) (Appendix)
  • Pfaff, A., A.L. Cochran, J, Vechinski, T. Molfenter, and G. Zayas-Cabán (2024). ``The Association Between Attitudes and the Provision of Medications for Opioid Use Disorder (MOUD) in United States Jails." Drug and Alcohol Dependence Reports, 10, 100211. (Paper)
  • David-Gomez, J.C., A.L. Cochran, M. Smith, and G. Zayas-Cabán (2023). ``Prediction of Rehospitalization and Mortality Risks for Skilled Nursing Facilities Using a Dimension Reduction Approach." BMC Geriatrics, 23(1), 394. (Paper)

Contact

  • Room: 3246
    Mechanical Engineering
    1513 University Ave,
    Madison, WI 53706
  • +1(608)265-6761

Jairo Alejandro Martínez Correa

Alejandro is a PhD student in the Department of Industrial & Systems Engineering Department at the University of Wisconsin-Madison. He received his bachelor's degree in mathematics from the National University of Colombia at Medellín, Colombia and his master's degree in Mathematics from the University of Antioquia in Medellín, Colombia.

Fernando Acosta Perez

Fernando is an Assistant Professor in the Department of Industrial Engineering at the University of Puerto Rico at Mayagüez. He received his Ph.D. in Industrial & Systems Engineering at the University of Wisconsin-Madison in 2026.

Sebastian Alejandro Alvarez Avendaño

Sebastian is a Senior Associate in Applied Artificial Intelligence and Machine Learning at JP Morgan. He received his Ph.D. in Industrial & Systems Engineering at the University of Wisconsin-Madison in 2023.

Juan Camilo David Gomez

Camilo is a Senior Associate in Applied Artificial Intelligence and Machine Learning at JP Morgan. He received his Ph.D. in Industrial & Systems Engineering at the University of Wisconsin-Madison in 2024.

Valerie Y. Odeh Couvertier

Valerie is a Manager of BIA GPS Cell Therapy Site Analytics with Bristol Myers Squibb. She received her Ph.D. in Industrial & Systems Engineering at the University of Wisconsin-Madison in 2024.