Past Talks
November 18, 2022:
Joseph Paat (University of British Columbia), The column-number of a Delta-modular matrix
Christopher Hojny (Eindhoven University of Technology), The role of rationality in integer programming relaxations
October 28, 2022:
Anirudh Subramanyam (Penn State), Branch-price-and-cut algorithms for robust vehicle routing under uncertainty
Sophie Huiberts (Columbia University), Integer programming column generation: Accelerating branch-and-price for set covering, packing, and partitioning problems
September 23, 2022:
Laura Sanità (Bocconi University), On the Simplex method for 0/1 polytopes
Elina Rönnberg (Linköping University), Integer programming column generation: Accelerating branch-and-price for set covering, packing, and partitioning problems
April 29, 2022:
Swati Gupta (Georgia Tech), Reusing Combinatorial Structure for Projections over Submodular Polytopes
Emma Frejinger (Université de Montréal), Fast Heuristic L-Shaped Method Through Machine Learning
March 25, 2022:
Jorge Sefair (Arizona State University), Continuous location models in the presence of obstacles: an application to wireless sensor networks
Alexandra Newman (Colorado School of Mines), Optimizing Design and Operations of Concentrated Solar Power Plants
February 25, 2022:
Danial Davarnia (Iowa State University), Rectangular decomposition of mixed integer programs via decision diagrams with application to unit commitment
Michaël Poss (LIRMM), Optimization problems in graphs with locational uncertainty
January 28, 2022:
Marc Pfetsch (TU Darmstadt), Presolving for Mixed-Integer Semidefinite Optimization
Victor Zavala (University of Wisconsin-Madison), Solution of Large-Scale Supply Chain Models using Graph Sampling & Coarsening
December 10, 2021:
Ivana Ljubic (ESSEC Business School of Paris), Lower Bounds for Ramsey Numbers on Circulant Graphs: A Bilevel Optimization Approach
November 19, 2021:
Carla Michini (University of Wisconsin-Madison), The Price of Anarchy in Series-Parallel Network Congestion Games
Christian Tjandraatmadja (Google), Constrained Discrete Black-Box Optimization using Mixed-Integer Programming
October 15, 2021:
Yuri Faenza (Columbia), Stable matchings, lattices, and polytopes
Margarida Carvalho (Université de Montréal), Sequential matching markets
April 30, 2021:
Robert Hildebrand (Virginia Tech), Compact mixed-integer programming relaxations in quadratic optimization
Ruth Misener (Imperial), Partial Lasserre Relaxation for Sparse Max Cut
March 26, 2021:
Yiling Zhang (University of Minnesota), Building Load Control using Distributionally Robust Binary Chance-Constrained Programs with Right-Hand Side Uncertainty and the Adjustable Variants
Andrew Trapp (Worcester Polytechnic Institute), A Comparative Study of Stability Representations for Solving Many-to-One Matching Problems with Ties and Incomplete Lists via Integer Optimization
February 26, 2021:
Thibaut Vidal (Polytechnique Montréal), Born-Again Tree Ensembles: Seeing the Forest for the Trees
Marianna De Santis (Sapienza Università di Roma), Exact approaches for multiobjective mixed integer nonlinear programming problems
January 29, 2021:
Merve Bodur (University of Toronto), Inverse Mixed Integer Optimization: Polyhedral Insights and Trust Region Methods
Ward Romeijnders (University of Groningen), A Converging Benders’ Decomposition Algorithm for Two-Stage Mixed-Integer Recourse Models
December 4, 2020:
Alfredo Torrico (Polytechnique Montréal), The Greedy Algorithm: An Effective and Flexible Tool in Submodular Optimization
Cheng Guo (University of Toronto), Copositive Duality for Discrete Markets and Games
David Bernal (Carnegie Mellon University), Modern Computational Approaches to Nonlinear Discrete Optimization and their Application to Process Systems Engineering
October 23, 2020:
Felipe Serrano (Zuse Institute Berlin), Monoidal Strengthening
Santanu Dey (Georgia Tech), Sparse PSD Approximation of the PSD Cone
October 2, 2020:
Tuomas Sandholm (Carnegie Mellon University), Configuring Algorithms Automatically: From Practice to Theory
Andrea Lodi (Polytechnique Montréal), Fair COVID-19 Test Allocation at Roche
July 14, 2020:
Jannis Kurtz (University of Siegen), Discrete Optimization Methods for Group Model Selection in Compressed Sensing
July 7, 2020:
Amitabh Basu (Johns Hopkins University), Provable complexity bounds for integer programming algorithms
Aida Khajavirad (Rutgers University), The ratio-cut polytope and K-means clustering
June 30, 2020:
Timo Berthold (FICO), Learning to Scale
Jean Pauphilet (London Business School), A Unified Approach to Mixed-Integer Optimization: Nonlinear Formulations and Scalable Algorithms
June 23, 2020:
Ricardo Fukasawa (University of Waterloo), Enforcing non-anticipativity in a two-stage stochastic program for scheduling with endogenous uncertainties
Austin Buchanan (Oklahoma State University), Imposing contiguity constraints in political districting models
June 16, 2020:
Axel Parmentier (Ecole des Ponts ParisTech), Learning to approximate industrial problems by operations research classic problems
Dolores Romero Morales (Copenhagen Business School), On Enhancing the Interpretability of Data Science Models via Dimensionality Reduction
June 2, 2020:
Weijun Xie (Virginia Tech), Best Submatrix Selection: Strong Formulations and Approximation Algorithms
Andrés Gómez (USC), Outlier detection in time series via mixed-integer conic quadratic optimization
May 5, 2020:
April 28, 2020:
Sriram Sankaranarayanan (Polytechnique Montreal), When Nash Meets Stackelberg
Siqian Shen (University of Michigan), New Results and Applications of Facility Location involving Competition, Prioritization, or Decision-dependent Demand
April 21, 2020:
Hamed Rahimian (Northwestern University), A Model of Supply-Chain Decisions for Resource Sharing with an Application to Ventilator Allocation to Combat COVID-19
Pierre Le Bodic (Monash University), Estimating the Size of the Branch and Bound Tree