Invited Speakers

Invited Speakers

 

Picture of Dr. Gonzalo Muñoz facing camera in glasses

Dr. Gonzalo Muñoz
Assistant Professor, Department of Industrial Engineering
Universidad de Chile

When: Wednesday, October 16, 2024; 4:00–5:00pm ET (click to RSVP)
When: Weil 401E

In-person only unless virtual option is requested

Title: Decision-focused predictions via pessimistic bilevel optimization: a computational study

Abstract: Dealing with uncertainty in optimization parameters is an important and longstanding challenge. Typically, uncertain parameters are predicted accurately, and then a deterministic optimization problem is solved. However, the decisions produced by this so-called predict-then-optimize procedure can be highly sensitive to uncertain parameters. In this work, we contribute to recent efforts in producing decision-focused predictions, i.e., to build predictive models that are constructed with the goal of minimizing a regret measure on the decisions taken with them. Specifically, we formulate the expected regret minimization as a pessimistic bilevel optimization model, refine known NP-hardness results of this problem, and present a single-level reformulation. Leveraging the single-level reformulation, we show various computational techniques to achieve empirical tractability and report extensive computational results on shortest-path and bipartite matching instances with uncertain cost vectors. Joint work with Victor Bucarey, Sophia Calderón and Frédéric Semet.
Sparse Estimation: Closing the Gap Between L0 and L1 Models

Dr. Alper Atamtürk
Professor, Department of Industrial Engineering & Operations Research
University of California, Berkeley

Friday, September 8, 2023; 10:40 AM – 11:40 AM ET
Weil 406

Zoom Meeting ID: Click Here
 

  

Dr. Alejandro Toriello
Professor at Department of Industrial and Systems Engineering
Georgia Tech

Friday, August 21, 2023; 10:40 AM – 11:40 AM ET
Weil 406

Zoom Meeting ID: 94548030552
 

  

Dr. Artem Prokhorov
Professor of Business Analytics
University of Sydney

Thursday, June 22, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Mark P. Van Oyen
Professor at Department of Industrial and Operations Engineering
University of Michigan

Friday, April 21, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Serhan Ziya
Professor at Department of Statistics and Operations Research
University at North Carolina at Chapel Hill

Friday, April 14, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. John Vande Vate
Professor at Department of Industrial and Systems Engineering
Georgia Institute of Technology

Friday, April 7, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Michele Samorani
Associate Professor, Information Sciences & Analytics
Santa Clara University

Friday, March 31, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Varun Gupta
Associate Professor of Operations Management
University of Chicago

Friday, March 24, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Pinar Keskinocak
William W. George Chair & Professor and Director of the Center of Health and Humanitarian Systems
Georgia Tech

Friday, March 10, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Ebru Bish
Professor of Operations Management , Department of Information Systems, Statistics and Management Science
University of Alabama

Friday, March 4, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
 

  

Dr. Alan Andrew Scheller-Wolf
Richard M. Cyert Professor of Operations Management
Carnegie Mellon University

Friday, February 17, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 97583979403
Dynamic Scheduling with Bayesian Learning

Dr. Xiaoshan Peng
Assistant Professor, Department of Operations and Decision Technologies, Kelley School of Business
Indiana University

Thursday, February 16, 2023; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 933 5588 9230
Semialgebraic parametric analysis by metaprogramming (SPAM) and its applications in optimization

Dr. Yuan Zhou
Assistant Professor, Department of Mathematics, University of Kentucky

Thursday, January 26, 2023; 3:00 PM – 4:00 PM ET
A Dynamic Model for Airline Fleeting and Scheduling

Dr. Chiwei Yan
Assistant Professor, Department of Industrial and Systems Engineering
University of Washington

Wednesday, November 2, 2022; 10:40 AM – 11:40 AM ET

Zoom Meeting ID: 920 0511 3772
Password: 792838
Quantum Approaches for Combinatorial Optimization Problems
Dr. Chunjing Jia
Assistant Professor, Department of Physics
University of FloridaTuesday, October 25, 2022; 3:00 PM – 4:00 PM ET
WEIL HALL 401Zoom Meeting ID: 334 691 7322
Optimization and Economic Equilibrium

Dr. Tyrrell Rockafellar
Professor, Department of Mathematics
University of Washington

Wednesday, October 12, 2022; 4:05 PM – 4:55 PM
LITTLE HALL 225

Zoom Meeting ID: 3346917322
A Review on Discrete Diversity of Optimization from an Operations Research Perspective

Dr. Rafa Martí
Professor, Department of Statistics and Operations Research
The University of Valencia

Tuesday, April 19, 2022; 4:05 PM – 4:55 PM
Weil Hall 406

Zoom Meeting ID: 93332255218
Dynamic-Data-Driven Simulation Modeling for Resilient Microgrid Systems

Dr. Nurcin Celik
Jones Career Development Associate Professor
Department of Industrial and Systems Engineering
University of Miami

Friday, April 15, 2022; 11:45 AM – 12: 35 PM

Zoom Meeting ID: 975 8764 4164
Password: 671640
Approximation algorithms for a class of stochastic selection problems with reward and cost considerations

Dr. Edwin Romeijn
H. Milton and Carolyn J. Stewart School Chair of the Stewart School of Industrial and Systems Engineering
Georgia Tech

Friday, April 08, 2022; 11:45 AM – 12: 35 PM
Weil Hall 406

Zoom Meeting ID: 975 8764 4164
Password: 671640
Convexification for Non-Convex Mixed-Integer Quadratic Programming

Dr. Sam Burer
Tipple-Rollins Professor, Business Analytics
University of Iowa

Friday, March 25, 2022; 11:45 AM – 12: 35 PM

Zoom Meeting ID: 975 8764 4164
Password: 671640
Advances in Operations Research for Public Safety

Dr. Laura Albert
Chair, Industrial & Systems Engineering
University of Wisconsin-Madison

Friday, March 18, 2022; 11:45 AM – 12: 35 PM

Zoom Meeting ID: 975 8764 4164
Password: 671640
Interpretability, Robustness, and Fairness in Predictive and Prescriptive Analytics for Social Impact

Dr. Phebe Vayanos
Assistant Professor
University of Southern California

Friday, March 04, 2022; 11:45 AM – 12: 35 PM

Zoom Meeting ID: 975 8764 4164
Password: 671640
Match, Batch, and Dispatch: Analysis of Order Fulfilment Policies

Dr. Natarajan Gautam
Professor
Syracuse University

Friday, February 18, 2022; 11:45 AM – 12: 35 PM
Weil Hall 406

Zoom Meeting ID: 975 8764 4164
Password: 671640
Improving Patient Safety, Patient Flow and Physician Well-being in Emergency Departments

Dr. Kevin Taaffe
Harriet and Jerry Dempsey Professor & Department Chair in Industrial Engineering
Clemson University

Friday, January 28, 2022; 11:45 AM – 12: 35 PM
Weil Hall 406

Zoom Meeting ID: 975 8764 4164
Password: 671640
Modeling the Operations of Domestic Sex Trafficking Networks: Transdisciplinary Research Meets Network Interdiction

Dr. Thomas Sharkey
Professor, Industrial Engineering
Clemson University

Friday, January 14, 2022; 11:45 AM – 12: 35 PM
Weil Hall 406

Zoom Meeting ID: 975 8764 4164
Password: 671640
Asymmetric Stochastic Shortest-Path Interdiction Favoring the Evader

Dr. Cole Smith
Dean, College of Engineering and Computer Science
Syracuse University

Friday, January 7, 2022; 11:45 AM -12: 45 PM
Weil Hall 406

Zoom Meeting ID: 964 8888 3177
Password: 908020