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Ioannis Tzortzis is currently a Postdoctoral Researcher at KIOS Research and Innovation Center of Excellence (appointed in March 2018). Ioannis_TzortzisHe received the Diploma degree in Electrical Engineering from the Higher Technical Institute, Cyprus, in 2003 and his BSc degree in Electrical Engineering and Informatics from Budapest University of Technology and Economics, Hungary, in 2007.  He completed his MSc studies and PhD studies in Electrical and Computer Engineering from the University of Cyprus in 2009 and 2015, respectively. Following his PhD, he worked as a research scientist (from Jan 2015-Jan 2016) at the Department of Electrical and Computer Engineering, University of Cyprus. Between February 2016 and February 2018, he worked at the Department of Electrical and Computer Engineering, University of Cyprus, as a Postdoctoral Researcher. His responsibilities involve primarily conducting research, participating in proposal writing, teaching and supervising undergraduate students. (Read more….)

Throughout his academic studies, he had the opportunity to contact research in a broad range of problems and get involved in numerous interdisciplinary projects, mainly in the areas of stochastic control theory and optimization, information theory and communication, population dynamics and in systems biology. In brief, his research interests can be categorized into:

  • Extremum problems with Total Variation distance metrics, with applications to systems under uncertainty and ambiguity.
  • Optimization problems for sequential decision making, with applications to minimax stochastic control via finite and infinite horizon Dynamic Programming.
  • High dimensional Markov processes approximation, with applications to model and graph reduction.
  • Modeling and analysis of dynamical population models, with applications to human population for policy making and planning.
  • Optimal control and information strategies in control-coding capacity of stochastic systems, with applications to communication and information theory.
  • Gene regulatory network reconstruction using experimental time series datasets with increasing complexity, with applications to systems biology via linear and nonlinear system identification.

His current research focuses on active fault diagnosis and control of distributed dynamical systems.  (Read more….)

News

August
2018
Accepted Journal Paper entitled “The average cost of Markov chains subject to total variation distance uncertainty” in Systems & Control Letters.
March
2018
New Position Postdoctoral Researcher at KIOS Research and Innovation Center of Excellence.
February
2018
Accepted Conference Paper entitled “Directed information subject to a fidelity: Applications to conditionally Gaussian processes” in the 2018 European Control Conference (ECC), Limassol, Cyprus.
August
2017
Accepted Conference Paper entitled “Reconstruction of gene regulatory networks using an error filtering learning scheme” at the 55th Annual Allerton Conference on Communication, Control, and Computing, Allerton Park and Retreat Center, Monticello, IL, USA.
July
2017
Accepted Conference Paper entitled “Two-letter capacity formula for channels with memory and feedback” in the 2017 IEEE Information Theory Workshop (ITW), Kaohsiung, Taiwan.
July
2017
Accepted Conference Papers (3) entitled “Signalling of information in networked stochastic dynamical control systems”, “Hierarchical optimality of linear controllers-encoders-decoders operating at control-coding capacity of LQG control systems” and “Hierarchical decomposition of optimal control and information strategies in control-coding capacity of stochastic systems” in the 56th IEEE Conference on Decision and Control (CDC), Melbourne, Australia.
April
2017
Accepted Conference Paper entitled “The capacity of unstable dynamical systems-interaction of control and information transmission” at the 2017 IEEE International Symposium on Information Theory (ISIT).
February
2017
Accepted Journal Paper entitled “Information transfer of control strategies: Dualities of stochastic optimal control theory and feedback capacity of information theory” in the IEEE Transactions of Automatic Control (IEEETAC).
February
2017
Submitted Journal Paper entitled “Hierarchical optimality of linear controllers-encoders-decoders operating at control-coding capacity of LQG control systems” in the IEEE Transactions of Automatic Control (IEEETAC).
November
2016
Submitted Journal Paper entitled “Single Letter expression of capacity for a class of channels with memory” in the IEEE Transactions on Information Theory (IEEEIT).
July
2016
Accepted Conference Papers (3) entitled “Robust linear quadratic regulator for uncertain systems”, “Information transfer in stochastic optimal control with randomized strategies and directed information criterion” and “Infinite horizon discounted dynamic programming subject to total variation ambiguity on conditional distribution” in the 55th IEEE Conference on Decision and Control (CDC), Las Vegas, USA.
July
2016
Submitted Journal Paper entitled “Information structures of maximizing distributions of feedback capacity for general channels with memory and applications” in the IEEE Transactions on Information Theory (IEEEIT).