General

These last three years I am teaching classes at the National Technical University of Athens (NTUA, where I also work as a postDoc) and the Athens University of Economics and Business. Before that, I spent three wonderful years as a PostDoc at the Cockrell School of Electrical and Computer Engineering of the University of Texas at Austin (supervised by prof. Evdokia Nikolova). I got my PhD from the School of Electrical and Computer Engineering of NTUA, under the supervision of prof. Dimitris Fotakis and prof. Stathis Zachos. Prior to that, I had completed the Graduate Program in Logic, Algorithms and Computation, after taking a diploma from the School of Applied Mathematics and Physics of NTUA. My pre-academic years were spent in my birth place, Sparta. A CV of mine can be found here.

Publications

• No-regret Learning and Mixed Nash Equilibria: They Do Not Mix.
  (joint work with Lampros Flokas, Emmanouil V. Vlatakis-Gkaragkounis, Panayotis Metikopoulos and Georgios Piliouras. NeurIPS '20 (spotlight))
• Efficient Online Learning of Optimal Rankings: Dimensionality Reduction via Gradient Descent.
  (joint work with Dimitris Fotakis, Georgios Piliouras, and Stratis Skoulakis. NeurIPS '20)
• Node Max-Cut and Computing Equilibria in Linear Weighted Congestion Games.
  (joint work with Dimitris Fotakis, Vardis Kandiros, Nikos Mouzakis, Panagiotis Patsilinakos, and Stratis Skoulakis. ICALP '20)
• Improving Selfish Routing for Risk-Averse Players.
  (joint work with Dimitris Fotakis and Dimitris Kalimeris. ToCS'20. Preliminary version here, WINE '15)
• Risk-averse Selfish Routing.
  (joint work with Evdokia Nikolova and Nicolas E. Stier-Moses. Math of OR '18)
• Network Pricing: How to Induce Optimal Flows Under Strategic Link Operators.
  (joint work with José Correa, Cristóbal Guzmán, Evdokia Nikolova and Marc Schröder. EC '18)
• When Does Diversity of User Preferences Improve Outcomes in Selfish Routing?
  (joint work with Richard Cole and Evdokia Nikolova. IJCAI '18)
• A Submodular Approach for Electricity Distribution Network Reconfiguration.
  (joint work with Ali Khodabakhsh, Ger Yang, Soumya Basu, Evdokia Nikolova, Michael C. Caramanis, Thanasis Lianeas and Emmanouil Pountourakis). HICSS '18)
• Resolving Braess's Paradox in Random Networks.
  (joint work with Dimitris Fotakis, Alexis Kaporis and Paul Spirakis. Algorithmica '17. Preliminary version here, WINE '13)
• Reconciling Selfish Routing with Social Good.
  (joint work with Soumya Basu, Yitao Chen, Evdokia Nikolova and Ger Yang. SAGT '17)
• Asymptotically Tight Bounds for Inefficiency in Risk-Averse Selfish Routing.
  (joint work with Evdokia Nikolova and Nicolas E. Stier-Moses. IJCAI '16)
• New Complexity Results and Algorithms for the Minimum Tollbooth Problem.
  (joint work with Soumya Basu and Evdokia Nikolova. WINE '15)
• On the Hardness of Network Design for Bottleneck Routing Games.
  (joint work with Dimitris Fotakis, Alexis Kaporis and Paul Spirakis. TCS '14. Preliminary version here, SAGT '12)
• Stochastic Congestion Games with Risk-Averse Players.
  (joint work with Haris Angelidakis and Dimitris Fotakis. SAGT '13)

Theses

• Phd Thesis (Some greek pages at the beginning. Supervisors: prof. Dimitris Fotakis and prof. Stathis Zachos.)
• Graduate Diploma Thesis (In greek. Supervisor: prof. Stathis Zachos.)
• Undergraduate Diploma Thesis (In greek. Supervisor: prof. Stathis Zachos.)

Contact

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Last update: 01/21.