• Conference Object  

      Action functional stochastic H∞ estimation for nonlinear discrete time systems 

      Charalambous, Charalambos D.; Farhadi, A.; Djouadi, S. M. (2002)
      This paper presents an action functional, sample path optimization technique, for formulating and solving nonlinear discrete-time stochastic H∞ estimation problems. These H∞ problems are formulated as minimax dynamic games ...
    • Conference Object  

      Atherosclerotic carotid plaque segmentation 

      Loizou, Christos P.; Pattichis, Constantinos S.; Istepanian, Robert Sh Habib; Pantzaris, Marios C.; Nicolaïdes, Andrew N. (2004)
      Atherosclerosis is the major cause of heart attack and stroke in the western world. In this paper we present a computerized method for segmenting the athrerosclerotic carotid plaque from ultrasound images. The method uses ...
    • Conference Object  

      Capacity of channels with memory and feedback: Encoder properties and dynamic programming 

      Charalambous, Charalambos D.; Kourtellaris, C. K.; Hadjicostis, Christoforos N. (2010)
      This paper is concerned with capacity formulae for channels with memory and feedback, properties of the capacity achieving encoder, and dynamic programming for designing optimal encoders. The source is general and the ...
    • Conference Object  

      Capacity of channels with memory and feedback: Encoder properties and dynamic programming 

      Charalambous, C. D.; Kourtellaris, C. K.; Hadjicostis, Christoforos N. (2010)
      This paper is concerned with capacity formulae for channels with memory and feedback, properties of the capacity achieving encoder, and dynamic programming for designing optimal encoders. The source is general and the ...
    • Article  

      The complexity of pure equilibria in mix-weighted congestion games on parallel links 

      Mavronicolas, Marios; Monien, Burkhard (2015)
      We revisit the simple class of weighted congestion games on parallel links [10], where each player has a non-negative weight and her cost on the link she chooses is the sum of the weights of all players choosing the link. ...
    • Conference Object  

      COOPERATIVE PATH-PLANNING FOR AUTONOMOUS VEHICLES USING DYNAMIC PROGRAMMING 

      Flint, M.; Polycarpou, Marios M.; Fernández-Gaucherand, E. (2002)
      It is shown how to model a cooperative path planning system for multiple autonomous air vehicles within the framework of a stochastic (dynamic programming) decision process. The proposed approach allows the vehicles to ...
    • Article  

      Dynamic programming subject to total variation distance ambiguity 

      Tzortzis, I.; Charalambous, Charalambos D.; Charalambous, T. (2015)
      The aim of this paper is to address optimality of stochastic control strategies via dynamic programming subject to total variation distance ambiguity on the conditional distribution of the controlled process. We formulate ...
    • Conference Object  

      Dynamic programming with total variational distance uncertainty 

      Charalambous, Charalambos D.; Tzortzis, I.; Charalambous, T. (2012)
      The aim of this paper is to address optimality of stochastic control strategies via dynamic programming subject to total variational distance uncertainty on the conditional distribution of the controlled process. Utilizing ...
    • Article  

      A dynamic stochastic programming model for international portfolio management 

      Topaloglou, Nikolas; Vladimirou, Hercules; Zenios, Stavros A. (2008)
      We develop a multi-stage stochastic programming model for international portfolio management in a dynamic setting. We model uncertainty in asset prices and exchange rates in terms of scenario trees that reflect the empirical ...
    • Article  

      A dynamic stochastic programming model for international portfolio management 

      Topaloglou, Nikolas; Vladimirou, Hercules; Zenios, Stavros A. (2008)
      We develop a multi-stage stochastic programming model for international portfolio management in a dynamic setting. We model uncertainty in asset prices and exchange rates in terms of scenario trees that reflect the empirical ...
    • Conference Object  

      Examples of optimal control for nonlinear stochastic control problems with partial information 

      Charalambous, Charalambos D.; Elliott, Robert J. (IEEE, 1995)
      Partially observable stochastic optimal control problems are considered. It is shown, via an information state approach and dynamic programming, that several classes of nonlinear systems with non-linearities in the dynamics ...
    • Article  

      Extension and application of an algorithm for systematic identification of weak coupling and partitions in dynamic system models 

      Rideout, D. G.; Stein, J. L.; Louca, Loucas S. (2009)
      This paper reviews and extends a technique to detect weak coupling (one-way coupling or complete decoupling) among elements of a dynamic system model, and to partition and reduce models in which weak coupling is found. The ...
    • Doctoral Thesis  Open Access

      Extremum problems of directed information 

      Stavrou, Photios A. (Πανεπιστήμιο Κύπρου, Πολυτεχνική Σχολή / University of Cyprus, Faculty of Engineering, 2016-05)
      Τα κλασσικά μέτρα θεωρίας της πληροφορίας που χρησιμοποιούνται για τον υπολογισμό της χωρητικότητας του καναλιού και της συμπίεσης της πληροφορίας με απώλειες, ορίζονται μέσω της αμοιβαίας πληροφορίας. Για επικοινωνιακά ...
    • Doctoral Thesis  Open Access

      Extremum problems with total variation distance metric on the space of probability measures and applications 

      Τζωρτζής, Ιωάννης Α. (Πανεπιστήμιο Κύπρου, Πολυτεχνική Σχολή / University of Cyprus, Faculty of Engineering, 2015-03)
      Η βελτιστοποίηση προβλήματων με ακρότατα που χρησιμοποιούν ως μετρική απόστασης την ολική κύμανση στο χώρο των μέτρων πιθανοτήτων είναι θεμελιώδους σημασίας στον στοχαστικό έλεγχο, στη θεωρία πληροφορίας και της επικοινωνίας, ...
    • Conference Object  

      First passage risk-sensitive criterion for stochastic evolutions 

      Charalambous, Charalambos D.; Hibey, Joseph L. (1995)
      The purpose of this paper is to investigate in an infinite dimensional space, the first passage problem with a risk-sensitive performance criterion, and to illustrate the asymptotic behavior of the associated value function, ...
    • Conference Object  

      Infinite horizon average cost dynamic programming subject to ambiguity on conditional distribution 

      Tzortzis, I.; Charalambous, Charalambos D.; Charalambous, T. (Institute of Electrical and Electronics Engineers Inc., 2015)
      This paper addresses the optimality of stochastic control strategies based on the infinite horizon average cost criterion, subject to total variation distance ambiguity on the conditional distribution of the controlled ...
    • Article  

      Mapping fortran programs to single assignment semantics for efficient parallelization 

      Evripidou, Paraskevas (1998)
      This paper presents Mustang, a system that automatically parallellizes Fortran programs by mapping them to single assignment semantics. Specifically, sequential Fortran source programs are translated into IF1, a ...
    • Article  

      Modelling and control of a medium-duty hybrid electric truck 

      Lin, C.-C.; Filipi, Z.; Louca, Loucas S.; Peng, H.; Assanis, D.; Stein, J. (2004)
      The main contributions of this paper are the development of a forward-looking hybrid vehicle simulation tool, and its application to the design of a power management control algorithm, The hybrid electric vehicle simulation ...
    • Article  

      Nonconcurrent error correction in the presence of roundoff noise 

      Takos, G.; Hadjicostis, Christoforos N. (2009)
      This paper analyzes the effects of roundoff noise on our ability to nonconcurrently detect and identify transient faults that corrupt state variables during the operation of a fault-tolerant discrete-time linear time-invariant ...
    • Article  

      Optimal control of uncertain stochastic systems subject to total variation distance uncertainty 

      Rezaei, F.; Charalambous, Charalambos D.; Ahmed, N. U. (2012)
      This paper is concerned with optimization of uncertain stochastic systems, in which uncertainty is described by a total variation distance constraint between the measures induced by the uncertain systems and the measure ...