Dr. Orestis Papadigenopoulos is a Postdoctoral Research Scientist collaborating with Professor Vineet Goyal and Professor Assaf Zeevi. Dr. Papadigenopoulos’ research at the Data Science Institute lies at the intersection of Operations Research, Theoretical Computer Science, and Machine Learning, with special focus on approximation and online algorithms, optimal stopping, and online learning.

Before joining Columbia University in August 2022, Dr. Papadigenopoulos earned his Ph.D. degree in Computer Science from The University of Texas at Austin where he was mentored by Professor Constantine Caramanis. Prior to that, he also completed his bachelor’s degree in Electrical and Computer Engineering at the National Technical University of Athens (NTUA).