Gabriel Zayas-Cabán

Assistant Professor
University of Wisconsin
zayascaban@wisc.edu

Gabriel is the Jane R. and Jack G. Mandula Assistant 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 research is in operations research with an emphasis on healthcare delivery, stochastic modeling and optimization, and causal inference. His recent focus is on emergency department admission decisions and care transitions. He also has some recent work on evaluating the impact of diverting non-violent offenders to substance use disorder treatment. 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

  • Alvarez-Avendano, S.A., V.Y. Odeh-Couvertier, B.W. Patterson, M.N. Shah, and G. Zayas-Cabán ``Outcomes from admission rather than discharge for older adults in the emergency department with vague presentations."
  • David-Gomez, J. C., A.L. Cochran, M. Smith, and G. Zayas-Cabán. ``Prediction of Rehospitalization Risk for Skilled Nursing Facilities Using a Dimension Reduction Approach."
  • Alvarez-Avendano, S. A., A.L. Cochran, K.E. Kocher, B.W. Patterson, and G. Zayas-Cabán . ``The Impact of Extending Treatment Time in the Emergency Department." (Preprint)
  • Alagoz, O., S.A. Alvarez-Avendano, J. Oruongo, and G. Zayas-Cabán. ``Optimizing Patient Transitions to Skilled Nursing Facilities." (Preprint)
  • David-Gomez, J. C., A.L. Cochran, B.W. Patterson, and G. Zayas-Cabán. ``Evaluation of a Split Flow Model for the Emergency Department." (Preprint)

Recent Publications

  • Zayas-Cabán G., A.L. Cochran (2022). ``Scheduling servers in a two-stage queue with abandonments and costs." Probability in the Engineering and Informational Sciences. (Paper)
  • Odeh-Couvertier, V.Y., B.W. Patterson, and G. Zayas-Cabán (2022). ``Association Between Advanced Image Ordered in the Emergency Department on Subsequent Imaging for Abdominal Pain Patients." Academic Emergency Medicine. (Paper)
  • White, V.M., Alvarez-Avendano, S. A., L.A. Albert, A.E. Zgierska, J. Balles, J., G. Zayas-Cabán (2021). ``Impact of a community-policing initiative promoting substance use disorder treatment over criminal charges on arrest recidivism." Drug and Alcohol Dependence, 227(0376-8716), 108915-108921. (Paper)
  • Sagaroc Gruichich, T., J.C. David-Gomez, G. Zayas-Cabán, M.G. McInnis, A.L. Cochran (2021). ``A Digital Self-Report Survey of Mood for Bipolar Disorder." Bipolar Disorders, 23(8), 810-820. (Paper)
  • Alvarez-Avendano, S.A., A.L. Cochran, B.W. Patterson, M.N. Shah, M. Smith, and G. Zayas-Cabán (2020). ``The average effect of ED admission on readmission and mortality for older adults with chest pain." Medical Care, 58(10), 881-888. (Paper)
  • Zayas-Cabán, G., E.J. Lodree, and D.L. Kaufman (2020). ``Optimal Control of Parallel Queues for Managing Volunteer Convergence." Production and Operations Management, 29(10), 2268-2288. (Paper)
  • Cochran, A.L., P.J. Rathouz, K.E. Kocher, and G. Zayas-Cabán (2019). ``A Latent Variable Approach to Potential Outcomes for Emergency Department Admission Decisions." Statistics in Medicine, 38(20), 3911-3935. (Paper)
  • Zayas-Cabán, G., S. Jasin, and G. Wang (2019). ``An Asymptotially Optimal Heuristic for a Non-stationary Finite-Horizon Restless Multi-Armed Multi-Action Bandit." Advances in Applied Probability, 51(3), 745-772. (Paper) (Supplementary Material)

Contact

  • Room: 3011
    Mechanical Engineering
    1513 University Ave,
    Madison, WI 53706
  • +1(608)265-6761

Sebastian Alejandro Alvarez Avendaño

Sebastian is a PhD student student in the Department of Industrial & Systems Engineering at the University of Wisconsin-Madison. He received his Bachelor's degree in Mathematics from the University of Antioquia in Medellin, Colombia. His interests are in causal inference, with a focus on identifying and estimating peer effects in complex service systems.

Juan Camilo David Gomez

Camilo 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 University of Antioquia in Medellín, Colombia. Camilo has worked on understanding the impact of split flow models in emergency departments. He has also been working on evaluating spillover effects from sequentially administered interventions.

Valerie Y. Odeh Couvertier

Valerie is a PhD student in the Department of Industrial & Systems Engineering Department at the University of Wisconsin-Madison. She received her Bachelors and Masters degree in Industrial Engineering from the University of Puerto Rico at Mayagüez and is interested in Operations Research. Her current work is on evaluating the impact of advanced imaging in the emergency department on outpatient image utilization and other outcomes.

Veronica White

Veronica is a PhD student in the Industrial and Systems Engineering Department at the University of Wisconsin-Madison. She received her Bachelor's degree in Industrial Engineering from Iowa State University. She has worked on using causal inference approaches to evaluating the impact of community policing initiatives on recidivism related to opioid use.