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- W2015586056 abstract "We discuss the interest of escort distributions and R'enyi entropy in the context of source coding. We first recall a source coding theorem by Campbell relating a generalized measure of length to the R'enyi-Tsallis entropy. We show that the associated optimal codes can be obtained using considerations on escort-distributions. We propose a new family of measure of length involving escort-distributions and we show that these generalized lengths are also bounded below by the R'enyi entropy. Furthermore, we obtain that the standard Shannon codes lengths are optimum for the new generalized lengths measures, whatever the entropic index. Finally, we show that there exists in this setting an interplay between standard and escort distributions." @default.
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- W2015586056 date "2009-08-01" @default.
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- W2015586056 title "Source coding with escort distributions and Rényi entropy bounds" @default.
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- W2015586056 doi "https://doi.org/10.1016/j.physleta.2009.07.015" @default.
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