Omar Mouchtaki
I am a final-year PhD candidate in the Decision, Risk and Operations Division of the Graduate School of Business at Columbia University. I am advised by Professor Omar Besbes and Professor Will Ma. Prior to joining Columbia, I earned a BS and MS in Applied Mathematics and Computer Science from Ecole Polytechnique (Paris).
The goal of my research is to bridge the gap between the theory and the practice of data-driven decision-making by developing methodological tools tailored to the problem at hand and by deriving fine-grained and problem-specific guarantees for algorithms. My current research draws on tools from Optimization, Probability and Statistical Learning and is applied to central operational decision-making processes such as those for inventory, pricing and assortment optimization.
I am on the 2023-2024 academic job market.
Upcoming Talks
- Cornell Young Researchers Workshop, October 2023.
- INFORMS Annual Meeting, October 2023.
TB04: Data-Driven Algorithms: New Paradigms (10/17/23 at 10:45 AM, Center-North 121A)
Research
Published or Forthcoming Journal Articles
How Big Should Your Data Really Be? Data-Driven Newsvendor: Learning One Sample at a Time with Omar Besbes
Management Science, Articles In Advance
- First Place, RMP Jeff McGill Student Paper Award, 2021
- Finalist, INFORMS George Nicholson Student Paper Competition, 2021
- Finalist, APS Best Student Paper Award, 2021
Under-revision Journal Papers
Beyond IID: Data-Driven Decision-Making in Heterogeneous Environments with Omar Besbes and Will Ma
Major Revision in Management Science
- Preliminary version appeared in the Proceedings of the 36th Conference on Neural Information Processing Systems (NeurIPS), 2022
Joint Assortment and Inventory Planning under the Markov chain Choice Model with Omar El Housni, Guillermo Gallego, Vineet Goyal, Salal Humair, Ali Sadighian, Sangjo Kim and Jingchen Wu
Major Revision in Management Science
From Contextual Data to Newsvendor Decisions: On the Actual Performance of Data-Driven Algorithms with Omar Besbes and Will Ma
Under Review in Management Science
Work in Progress
Pricing with Binary Feedback: the Value of Information Bit by Bit with Omar Besbes and Will Ma
Ongoing work
Fast Revenue Maximization with Few Experiments with Achraf Bahamou and Omar Besbes
Ongoing work
Teaching
Teaching Assistant (Columbia Business School)
- EMBA Core: Operations Management. Spring 2022
- MBA Core: Business Analytics. Fall 2021, Fall 2022
- MBA Elective: Business Analytics II. Summer 2020, Summer 2021