7 citations · 8 across the 7 of their papers we have counts for
8 papers
Remote State Estimation with Unreliable Communication: Information Asymmetry and Belief Structure
Ioannis Tzortzis, Themistoklis Charalambous
In this paper, we study remote state estimation under unreliable forward and feedback communication between a smart sensor and a remote estimator. When the sensor cannot perfectly…
Remote Estimation for Markov Jump Linear Systems: A Distributionally Robust Approach
Ioannis Tzortzis, Themistoklis Charalambous, Charalambos D. Charalambous
This paper considers the problem of remote state estimation for Markov jump linear systems in the presence of uncertainty in the posterior mode probabilities. Such uncertainty may…
Remote Estimation over Packet-Dropping Wireless Channels with Partial State Information
Ioannis Tzortzis, Evagoras Makridis, Charalambos D. Charalambous +1
In this paper, we study the design of an optimal transmission policy for remote state estimation over packet-dropping wireless channels with imperfect channel state information. A…
Active Fault Diagnosis for a Class of Nonlinear Uncertain Systems: A Distributionally Robust Approach
Ioannis Tzortzis, Marios M. Polycarpou
This work is devoted to the development of a distributionally robust active fault diagnosis approach for a class of nonlinear systems, which takes into account any ambiguity in dis…
Single Letter Expression of Capacity for a Class of Channels with Memory
Christos K. Kourtellaris, Charalambos D. Charalambous, Ioannis Tzortzis
We study finite alphabet channels with Unit Memory on the previous Channel Outputs called UMCO channels. We identify necessary and sufficient conditions, to test whether the capaci…
Infinite Horizon Average Cost Dynamic Programming Subject to Total Variation Distance Ambiguity
Ioannis Tzortzis, Charalambos D. Charalambous, Themistoklis Charalambous
We analyze the infinite horizon minimax average cost Markov Control Model (MCM), for a class of controlled process conditional distributions, which belong to a ball, with respect t…
Approximation of Markov Processes by Lower Dimensional Processes via Total Variation Metrics
Ioannis Tzortzis, Charalambos D. Charalambous, Themistoklis Charalambous +2
The aim of this paper is to approximate a finite-state Markov process by another process with fewer states, called herein the approximating process. The approximation problem is fo…
Extremum Problems with Total Variation Distance and their Applications
Charalambos D. Charalambous, Ioannis Tzortzis, Sergey Loyka +1
The aim of this paper is to investigate extremum problems with pay-off being the total variational distance metric defined on the space of probability measures, subject to linear f…