Event Category: Operations Research Seminar Series

2/22/18 | 4:15pm | E51-345 Reception to follow.         Mor Armony Professor of Operations Management NYU, Stern School of Business  Abstract: Patient no-shows is a serious issue that significantly complicates capacity management in outpatient care. In this talk we examine various aspects of this challenge and propose ways to alleviate the negative…

11/30/2017 | 4:15pm | E51-335 Reception to follow.         Jónas Jónasson Assistant Professor Sloan School of Management, MIT Abstract: Community health workers (CHWs) are increasingly important to healthcare delivery in many African countries. Leveraging an extensive dataset featuring time, clinical findings, and GPS information for CHW visits in sub-Saharan Africa, we develop…

11/16/2017 | 4:15pm | E51-335 Reception to follow.         David Sontag Assistant Professor EECS, MIT Abstract: There is intense interest in applying machine learning to problems of causal inference in fields such as healthcare, economics and education. In this talk, I introduce two new approaches for estimating individual treatment effect (ITE) from…

11/9/2017 | 4:15pm | E51-335 Reception to follow.         Nicolas Stier Research Scientist Manager Facebook Abstract: Budgets play a significant role in real-world sequential auction markets such as those implemented by Internet companies. To maximize the value provided to auction participants, spending is smoothed across auctions so budgets are used for the…

10/19/2017 | 4:15pm | E51-335 Reception to follow.         Mohit Tawarmalani Professor Krannert School of Management, Purdue University Abstract: We develop a new relaxation that exploits function structure while convexifying a product of n functions. The function structure is encapsulated using at most d over and underestimators. We convexify the function product…

10/12/2017 | 4:15pm | E51-335 Reception to follow.         Sheldon Jacobson GEBI Founder Professor in Engineering University of Illinois Abstract: Every ten years, United States Congressional Districts must be redesigned in response to a national census. While the size of practical political districting problems is typically too large for exact optimization approaches,…

10/5/2017 | 4:15pm | E51-335 Reception to follow.         Sam Pimentel Assistant Professor University of California Abstract: How do health outcomes for newly-trained surgeons’ patients compare with those for patients of experienced surgeons? To answer this question using data from Medicare, we introduce a new form of matching that pairs patients of…

9/28/2017 | 4:15pm | E51-335 Reception to follow.         Madeleine Udell Assistant Professor Cornell University Abstract: In this talk, we consider a fundamental class of convex matrix optimization problems with low-rank solutions. We show it is possible to solve these problem using far less memory than the natural size of the decision…

9/21/2017 | 4:15pm | E51-335 Reception to follow.         Andrew Li PhD Student Operations Research Center, MIT Abstract: Product and content personalization is now ubiquitous in e-commerce. There is typically too little available transactional data for this task. As such, companies today seek to use a variety of information on the interactions…

9/14/2017 | 4:15pm | E51-335 Reception to follow.         Wilfred Amaldoss Thomas A. Finch Jr. Professor Duke University’s Fuqua School of Business  Abstract: Technology is making it easier for firms to track consumers’ purchase history and leverage the information in setting prices. The extant literature on behavior-based pricing (BBP), however, casts doubt…