Πλοήγηση ανά Συγγραφέα "Stavrou, P. A."
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Conference Object
Applications of information Nonanticipative Rate Distortion Function
Stavrou, P. A.; Kourtellaris, C. K.; Charalambous, Charalambos D. (Institute of Electrical and Electronics Engineers Inc., 2014)The objective of this paper is to further investigate various applications of information Nonanticipative Rate Distortion Function (NRDF) by discussing two working examples, the Binary Symmetric Markov Source with parameter ...
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Book Chapter
Directed information on abstract spaces: Properties and extremum problems
Charalambous, Charalambos D.; Stavrou, P. A.; Kourtellaris, C. K. (Springer Verlag, 2015)
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Conference Object
Directed information on abstract spaces: Properties and extremum problems
Charalambous, Charalambos D.; Stavrou, P. A. (2012)This paper describes a framework in which directed information is defined on abstract spaces. The framework is employed to derive properties of directed information such as convexity, concavity, lower semicontinuity, by ...
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Conference Object
Filtering with fidelity for time-varying Gauss-Markov processes
Stavrou, P. A.; Charalambous, T.; Charalambous, Charalambos D. (Institute of Electrical and Electronics Engineers Inc., 2016)In this paper, we revisit the relation between Nonanticipative Rate Distortion (NRD) theory and real-time realizable filtering theory. Specifically, we give the closed form expression for the optimal nonstationary ...
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Book Chapter
Information nonanticipative rate distortion function and its applications
Stavrou, P. A.; Kourtellaris, C. K.; Charalambous, Charalambos D. (Springer Verlag, 2015)
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Conference Object
Minimax rate distortion for a class of sources
Rezaei, F.; Charalambous, Charalambos D.; Stavrou, P. A.; Kourtellaris, C. (2010)This paper deals with rate distortion or source coding with fidelity criterion, in measure spaces, for a class of source distributions. The class of source distributions is described by a relative entropy constraint set ...
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Article
Nonanticipative duality of sources and channels with memory and feedback
Kourtellaris, C. K.; Charalambous, Charalambos D.; Stavrou, P. A. (2015)
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Article
Nonanticipative rate distortion function and relations to filtering theory
Charalambous, Charalambos D.; Stavrou, P. A.; Ahmed, N. U. (2014)The relation between nonanticipative rate distortion function (RDF) and filtering theory is discussed on abstract spaces. The relation is established by imposing a realizability constraint on the reconstruction conditional ...
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Book Chapter
On Shannon’s duality of a source and a channel and nonanticipative communication and communication for control
Charalambous, Charalambos D.; Kourtellaris, C. K.; Stavrou, P. A. (Springer Verlag, 2014)
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Conference Object
On the relation of nonanticipative rate distortion function and filtering theory
Charalambous, Charalambos D.; Stavrou, P. A. (2013)In this paper the relation between nonanticipative rate distortion function (RDF) and Bayesian filtering theory is investigated using the topology of weak convergence of probability measures on Polish spaces. The relation ...
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Conference Object
Optimization of directed information and relations to filtering theory
Charalambous, Charalambos D.; Stavrou, P. A. (Institute of Electrical and Electronics Engineers Inc., 2014)In this paper we generalize the relation between nonanticipative Rate Distortion Function (RDF) and filtering theory, to processes which are affected by the reproduction process, by utilizing the topology of weak convergence ...
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Conference Object
Rate distortion function with causal decoding
Charalambous, Charalambos D.; Kourtellaris, C. K.; Stavrou, P. A. (2010)This paper considers source coding of general sources with memory, when causal feedback is available at the decoder. The rate distortion function is defined as the infimum of the so-called directed information over causal ...
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Article
Sequential Necessary and Sufficient Conditions for Capacity Achieving Distributions of Channels with Memory and Feedback
Stavrou, P. A.; Charalambous, Charalambos D.; Kourtellaris, C. K. (2017)We derive sequential necessary and sufficient conditions for any channel input conditional distribution P0,n δ {PXt |Xt?1,Yt?1 : T = 0, . . . , n} to maximize the finite-Time horizon directed information defined by CFB ...
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Conference Object
Sequential Necessary and Sufficient Conditions for optimal channel input distributions of channels with memory and feedback
Stavrou, P. A.; Charalambous, Charalambos D.; Kourtellaris, C. K. (Institute of Electrical and Electronics Engineers Inc., 2016)We derive Sequential Necessary and Sufficient Conditions (SNSC) for any channel input distribution equation to maximize directed information for channel distributions of the form equation, where Xn t {X0., Xn} and Yn t ...
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Conference Object
Variational equalities of directed information and applications
Stavrou, P. A.; Charalambous, Charalambos D. (2013)In this paper we introduce two variational equalities of directed information, which are analogous to those of mutual information employed in the Blahut-Arimoto Algorithm (BAA). Subsequently, we introduce nonanticipative ...