• Conference Object  

      Detectability in stochastic discrete event systems 

      Keroglou, C.; Hadjicostis, Christoforos N. (IFAC Secretariat, 2014)
      In this paper we define and analyze notions of detectability in stochastic discrete event systems (SDES). More specifically, we introduce the notions of A-detectability and AA-detectability which focus on characterizing ...
    • Article  

      Detectability in stochastic discrete event systems 

      Keroglou, C.; Hadjicostis, Christoforos N. (2015)
      A discrete event system possesses the property of detectability if it allows an observer to perfectly estimate the current state of the system after a finite number of observed symbols, i.e., detectability captures the ...
    • Conference Object  

      K-detectability in discrete event systems 

      Hadjicostis, Christoforos N.; Seatzu, C. (Institute of Electrical and Electronics Engineers Inc., 2016)
      This paper studies observability in discrete event systems (DES), and introduces and analyzes the property of K-detectability. In particular, a given DES is strongly K-detectable if eventually (after a finite number of ...
    • Article  

      LQG optimality and separation principle for general discrete time partially observed stochastic systems over finite capacity communication channels 

      Charalambous, Charalambos D.; Farhadi, A. (2008)
      This paper is concerned with control of stochastic systems subject to finite communication channel capacity. Necessary conditions for reconstruction and stability of system outputs are derived using the Information ...
    • Article  

      Verification of detectability in Probabilistic Finite Automata 

      Keroglou, C.; Hadjicostis, Christoforos N. (2017)
      In this paper we analyze state estimation in stochastic discrete event systems (SDES) that can be modeled as probabilistic finite automata (PFAs). For a given PFA, we obtain the necessary and sufficient conditions that ...