no code implementations • 2 Feb 2024 • Dimitris Bertsimas, Arthur Delarue, Jean Pauphilet
When training predictive models on data with missing entries, the most widely used and versatile approach is a pipeline technique where we first impute missing entries and then compute predictions.
no code implementations • 2 Oct 2023 • Puneet S. Bagga, Arthur Delarue
The Quadratic Assignment Problem (QAP) is an NP-hard problem which has proven particularly challenging to solve: unlike other combinatorial problems like the traveling salesman problem (TSP), which can be solved to optimality for instances with hundreds or even thousands of locations using advanced integer programming techniques, no methods are known to exactly solve QAP instances of size greater than 30.
no code implementations • 7 Apr 2021 • Dimitris Bertsimas, Arthur Delarue, Jean Pauphilet
Missing data is a common issue in real-world datasets.
1 code implementation • NeurIPS 2020 • Arthur Delarue, Ross Anderson, Christian Tjandraatmadja
We develop a framework for value-function-based deep reinforcement learning with a combinatorial action space, in which the action selection problem is explicitly formulated as a mixed-integer optimization problem.
no code implementations • 30 Jun 2020 • Dimitris Bertsimas, Léonard Boussioux, Ryan Cory Wright, Arthur Delarue, Vassilis Digalakis Jr., Alexandre Jacquillat, Driss Lahlou Kitane, Galit Lukin, Michael Lingzhi Li, Luca Mingardi, Omid Nohadani, Agni Orfanoudaki, Theodore Papalexopoulos, Ivan Paskov, Jean Pauphilet, Omar Skali Lami, Bartolomeo Stellato, Hamza Tazi Bouardi, Kimberly Villalobos Carballo, Holly Wiberg, Cynthia Zeng
Specifically, we propose a comprehensive data-driven approach to understand the clinical characteristics of COVID-19, predict its mortality, forecast its evolution, and ultimately alleviate its impact.
no code implementations • 8 Jul 2019 • Dimitris Bertsimas, Arthur Delarue, Patrick Jaillet, Sebastien Martin
When quantitative models are used to support decision-making on complex and important topics, understanding a model's ``reasoning'' can increase trust in its predictions, expose hidden biases, or reduce vulnerability to adversarial attacks.
no code implementations • 8 Jul 2019 • Dimitris Bertsimas, Arthur Delarue, Patrick Jaillet, Sebastien Martin
We propose a general optimization framework to create explanations for linear models.