IEOR-DRO Seminar: Diwakar Gupta (UT Austin)

December 19, 2017 | 1:10pm - 2:00pm

IEOR-DRO Seminar: Diwakar Gupta (UT Austin)

Mudd Hall, 500 W. 120 St., New York, NY 10027 303
Title: Operating Room Staffing and Scheduling

Abstract: This talk will focus on two problems faced by an Operating-Room (OR) manager: (1) how many baseline or core staff to hire for OR suites, and (2) how to schedule surgery requests that arrive one by one. Baseline staffing level is chosen periodically, e.g. quarterly or annually and it determines the total cost of regular staff plus overtime. Surgical cases are scheduled continuously as they arise. Scheduling decisions are made in two phases. First, as booking requests arrive, surgeries are placed in virtual ORs. Requests from surgeons holding blocks are honored so long as the planned surgery time fits in their remaining block time. Later, one or two days before each surgery day, surgeries are scheduled after taking into account surgeons’ preferences such as back-to-back and same-OR scheduling of cases. In this phase, delays experienced by surgeons on account of a previous block of cases not finishing on time are explicitly modeled.  The talk will describe a robust-optimization-based methodology for the two problems described above, and tests involving real and synthetic data. 
 
Bio: Diwakar Gupta is a Professor of Operations Management in the IROM Department at the McCombs School of Business. Prior to joining UT in fall 2017, Diwakar held an appointment as professor of Industrial and Systems Engineering at the University of Minnesota. Diwakar earned a Ph.D. in Management Sciences from the University of Waterloo. His research focuses on healthcare delivery systems, supply chain management and finance, and state transportation agencies’ operations. Diwakar has also served as program director for the Service, Manufacturing and Operations Research program of the National Science Foundation (2014-16), as the chair of the HOM SIG (2011-15), and as the President of HAS (2014-15).


500 W. 120th St., Mudd 315, New York, NY 10027    212-854-2942                 
©2014 Columbia University