On generalized Cramér-Rao inequalities, generalized Fisher informations and characterizations of generalized q-Gaussian distributions

Abstract : This paper deals with Cramér-Rao inequalities in the context of nonextensive statistics and in estimation theory. It gives characterizations of generalized q-Gaussian distributions, and introduces generalized versions of Fisher information. The contributions of this paper are (i) the derivation of new extended Cramér-Rao inequalities for the estimation of a parameter, involving general q-moments of the estimation error, (ii) the derivation of Cramér-Rao inequalities saturated by generalized q-Gaussian distributions, (iii) the definition of generalized Fisher informations, (iv) the identification and interpretation of some prior results, and finally, (v) the suggestion of new estimation methods.
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Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2012, 45, pp.255303. <10.1088/1751-8113/45/25/255303>
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Contributeur : Jean-François Bercher <>
Soumis le : mercredi 19 septembre 2012 - 14:16:24
Dernière modification le : mercredi 19 septembre 2012 - 15:51:44
Document(s) archivé(s) le : jeudi 20 décembre 2012 - 03:46:45

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Jean-François Bercher. On generalized Cramér-Rao inequalities, generalized Fisher informations and characterizations of generalized q-Gaussian distributions. Journal of Physics A: Mathematical and Theoretical, IOP Publishing, 2012, 45, pp.255303. <10.1088/1751-8113/45/25/255303>. <hal-00733750>

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