Browsing by Author "Stavrou, Photios A."
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Conference Object
Asymptotic Reverse-Waterfilling Characterization of Nonanticipative Rate Distortion Function of Vector-Valued Gauss-Markov Processes with MSE Distortion
Stavrou, Photios A.; Charalambous, Themistoklis; Charalambous, Charalambos D.; Loyka, Sergey; Skoglund, Mikael (IEEE, 2018)In this paper, we revisit the asymptotic reverse-waterfilling characterization of the nonanticipative rate distortion function (NRDF) derived for a time-invariant multidimensional Gauss-Markov processes with mean-squared ...
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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 ...
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Article
Finite-Time Nonanticipative Rate Distortion Function for Time-Varying Scalar-Valued Gauss-Markov Sources
Stavrou, Photios A.; Charalambous, Themistoklis; Charalambous, Charalambos D. (2018)We derive the finite-time horizon nonanticipative rate distortion function (NRDF) of timevarying scalar Gauss-Markov sources under an average mean squared-error (MSE) distortion fidelity. Further, we show that a conditionally ...
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Article
Optimal Estimation via Nonanticipative Rate Distortion Function and Applications to Time-Varying Gauss--Markov Processes
Stavrou, Photios A.; Charalambous, Themistoklis; Charalambous, Charalambos D.; Loyka, Sergey (2018)In this paper, we develop finite-time horizon causal filters for general processes taking values in Polish spaces using the nonanticipative rate distortion function ($NRDF$). Subsequently, we apply the $NRDF$ to design ...
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Article
Zero-Delay Rate Distortion via Filtering for Vector-Valued Gaussian Sources
Stavrou, Photios A.; Østergaard, Jan; Charalambous, Charalambos D. (2018)We deal with zero-delay source coding of a vector-valued Gauss-Markov source subject to a mean-squared error (MSE) fidelity criterion characterized by the operational zero-delay vector-valued Gaussian rate distortion ...