I am a Ph.D. candidate in Operations Research with Data Science specialization at Columbia University. I am advised by Prof. Garud Iyengar and co-advised by Prof. Assaf Zeevi. My primary research interests are in sequential decision making under uncertainty, reinforcement learning, bandit algorithms, interpretable machine learning and their applications.
I have also had the pleasure to work on projects with the Center for Computational and Statistical Learning at IBM T.J. Watson Research Center.

Email m.oh@columbia.edu

Address 500 W. 120th St. Mudd 315, Columbia University
New York, NY 10027

Columbia University.

New York, NY, USA

Ph.D. in Operations Research, 2015 - Present

Ph.D. Specialization in Data Science

CKGSB Doctoral Fellow


Columbia University.

New York, NY, USA

B.A. in Mathematics-Statistics, 2015

  • Summa cum laude
  • Departmental Honors in Statistics
  • Phi Beta Kappa

Sparsity-Agnostic Lasso Bandit

with Garud Iyengar and Assaf Zeevi

Submitted


Multinomial Logit Contextual Bandits: Provable Optimality and Practicality

with Garud Iyengar

Submitted


Counting and Segmenting Sorghum Heads

with Peder A. Olsen and Karthikeyan Natesan Ramamurthy

Submitted

Crowd Counting with Decomposed Uncertainty

with Peder A. Olsen and Karthikeyan Natesan Ramamurthy

AAAI Conference on Artificial Intelligence (AAAI), 2020


Thompson Sampling for Multinomial Logit Contextual Bandits

with Garud Iyengar

Neural Information Processing Systems (NeurIPS), 2019


Sequential Anomaly Detection using Inverse Reinforcement Learning

with Garud Iyengar

ACM SIGKDD International Conference on Knowledge Discovery & Data Mining (KDD), 2019

Oral presentation in research paper track (top 9% of total submissions)


Automatic Event Detection in Basketball using Hidden Markov Models with Energy based Defensive Assignment

with Suraj Keshri, Sheng Zhang and Garud Iyengar

Journal of Quantitative Analysis in Sports. 15.2: 141-153. 2019


Adaptive Pattern Matching with Reinforcement Learning for Dynamic Graphs

with Hiroki Kanezashi, Toyotaro Suzumura, Dario Garcia-Gasulla and Satoshi Matsuoka

IEEE International Conference on High Performance Computing, Data, and Analytics (HiPC), 2018

Best Paper Award Winner


Learning Graph Topological Features via GAN

with Weiyi Liu, Pin-Yu Chen, Hal Cooper, Sailung Yeung and Toyotaro Suzumura

IEEE Access, 7, 21834--21843, 133600, 2019

Preliminary version appeared at Workshop on Implicit Models, International Conference on Machine Learning (ICML), 2017


Efficient "Shotgun" Inference of Neural Connectivity from Highly Sub-sampled
Activity Data

with Daniel Soudry, Suraj Keshri, Patrick Stinson, Garud Iyengar and Liam Paninski

PLoS Computational Biology, 11 (10), 2015


Graphical Model for Basketball Match Simulation

with Suraj Keshri and Garud Iyengar

MIT Sloan Sports Analytics Conference, 2015

Finalist in Research Paper Competition (top 2% of total submissions)

Thompson Sampling for Contextual Reinforcement Learning

with Garud Iyengar


Directed Exploration in PAC Model-free Reinforcement Learning

with Garud Iyengar

Preliminary version appeared at Exploration in RL Workshop, International Conference on Machine Learning (ICML), 2018

2nd Place Winner, 2018 INFORMS Annual Meeting Poster Competition


Unsupervised segmentation of neuroanatomy from multispectral images

with Uygar Sümbül, Jeremy Wohlwend, Douglass Roossien Jr., Fei Chen, Nicholas Barry, Adam H. Marblestone, John P. Cunningham, Dawen Cai, Edward S. Boyden and Liam Paninski