I am a post-doctoral researcher at École Polytechnique Fédérale de Lausanne (EPFL) hosted by Volkan Cevher. I received my PhD at National Technical University of Athens (NTUA) under the supervision of Dimitris Fotakis. Prior to that I was a post-doc at Singapore University of Technology and Design (SUTD) hosted by Georgios Piliouras.

Research Interests

My research interests lie at the intersection of Algorithmic Game Theory, Optimization and Machine Learning. A big part of my research concerns the analysis of learning dynamics in games as well as the design of online decision making algorithms. I am also interested in developing efficient methods (or providing lower bounds) for intriguing optimization settings arising in the context of machine learning.

News

• 21 March: I am visiting UC Santa Cruz
• 11 March: I am visiting Oxford University
• 5 March: I am visiting Aarhus University
• 1 paper accepted to ICLR 2024.
• 4 papers accepted to NeurIPS 2023 (2 spotlight).
• One paper accepted to COLT 2023.
• One paper to ICML 2023 (oral)

Selected Publications

• Semi Bandit dynamics in Congestion Games: Convergence to Nash Equilibrium and No-Regret Guarantees Ioannis Panageas, Stratis Skoulakis, Luca Viano, Xiao Wang and Volkan Cevher, ICML 2023 (oral).

• STay-ON-the-Ridge: Guaranteed Convergence to Local Minimax Equilibrium in Nonconvex-Nonconcave Games: Costis Daskalakis, Noah Golowich, Stratis Skoulakis and Manolis Zampetakis, COLT 2023

• Adaptive Stochastic Variance Reduction for Non-convex Finite-Sum Minimization Ali Kavis, Stratis Skoulakis, Kimon Antonakopoulos, Leello Tadesse Dadi and Volkan Cevher, NeurIPS 2022.

• The complexity of constrained min-max optimization. Constantinos Daskalakis, Stratis Skoulakis and Manolis Zampetakis, STOC 2021.

• On the Approximability of Multistage Min-Sum Set Cover. Dimitris Fotakis, Panagiotis Kostopanagiotis, Vasileios Nakos, Georgios Piliouras, Stratis Skoulakis, ICALP 2021.

• Opinion Dynamics with Limited Information. Dimitris Fotakis, Vardis Kandiros, Vasilis Kontonis, and Stratis Skoulakis, WINE 2018