Dionysis Kalogerias

Assistant Professor of Electrical Engineering
Room / Office: Becton 513
Office Address:
15 Prospect Street
New Haven, CT 06511
Mailing Address:
P.O. Box 208284
New Haven, CT 06520
Email: dionysis.kalogerias@yale.edu
  • PhD, Rutgers, The State University of New Jersey
  • MEng, MSc, University of Patras, Greece


Dionysios' interests are in machine learning, reinforcement learning, optimization, signal processing, sequential decision making, and risk, as well as their applications in autonomous networked systems, wireless communications, security/privacy, and system robustness and trustworthiness.

Selected Awards & Honors:

  • ICASSP Best Paper Award (2020)
  • Rutgers SOE Outstanding Graduate Student Award (2017)
  • Rutgers ECE Graduate Program Academic Achievement Award (2017)
  • ICASSP Best Student Paper of the Special Sessions (2016)

Selected Publications:

  • K. E. Nikolakakis, D. S. Kalogerias, O. Sheffet, and A. D. Sarwate, “Quantile Multi-Armed Bandits: Optimal Best-Arm Identification and a Differentially Private Scheme,” IEEE Journal on Selected Areas in Information Theory (JSAIT), Special Issue on Sequential, Active and Reinforcement Learning, to appear in 2021. 
  • K. E. Nikolakakis, D. S. Kalogerias, and A. D. Sarwate, “Predictive Learning on Hidden Tree-Structured Ising Models,” Journal of Machine Learning Research (JMLR), vol. 22, no. 59, pp. 1-82, 2021.
  • D. S. Kalogerias, M. Eisen, G. J. Pappas, and A. Ribeiro, “Model-Free Learning of Optimal Ergodic Policies in Wireless Systems,” IEEE Transactions on Signal Processing, vol. 68, pp. 6272-6286, 2020.
  • A. Tsiamis, D. S. Kalogerias, L. F. O. Chamon, A. Ribeiro, and G. J. Pappas, “Risk-Constrained Linear-Quadratic Regulators,” 59th IEEE Conference on Decision and Control (CDC 2020), Jeju Island, Republic of Korea, December 2020.
  • D. S. Kalogerias, L. F. O. Chamon, G. J. Pappas, and A. Ribeiro, “Better Safe than Sorry: Risk-Aware Nonlinear Bayesian Estimation,” 45th IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP 2020), Barcelona, Spain, May 2020 (“Best Paper Award”).
  • A. Dimas, D. S. Kalogerias, and A. P. Petropulu, “Cooperative Beamforming with Predictive Relay Selection for Urban mmWave Communications,” IEEE Access, vol. 7, pp. 157057-157071, November 2019 (Patent Pending).
  • K. E. Nikolakakis, D. S. Kalogerias, and A. D. Sarwate, “Learning Tree Structures from Noisy Data,” 22nd International Conference on Artificial Intelligence and Statistics (AISTATS 2019), Naha, Okinawa, Japan, April 2019.