Bayesian M-Ary hypothesis testing: the meta-converse and Verdú-Han bounds are tight

Two alternative exact characterizations of the minimum error probability of Bayesian M-ary hypothesis testing are derived. The first expression corresponds to the error probability of an induced binary hypothesis test and implies the tightness of the meta-converse bound by Polyanskiy et al.; the sec...

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Detalles Bibliográficos
Autores: Vazquez-Vilar, Gonzalo, Tauste Campo, Adrià, 1982-, Guillén i Fábregas, A. (Albert), Martínez, Alfonso, 1973-
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2016
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:10230/36000
Acceso en línea:http://hdl.handle.net/10230/36000
http://dx.doi.org/10.1109/TIT.2016.2542080
Access Level:acceso abierto
Palabra clave:Error probability
Testing
Bayes methods
Random variables
Channel coding
Electronic mail
Descripción
Sumario:Two alternative exact characterizations of the minimum error probability of Bayesian M-ary hypothesis testing are derived. The first expression corresponds to the error probability of an induced binary hypothesis test and implies the tightness of the meta-converse bound by Polyanskiy et al.; the second expression is a function of an information-spectrum measure and implies the tightness of a generalized Verdú-Han lower bound. The formulas characterize the minimum error probability of several problems in information theory and help to identify the steps where existing converse bounds are loose.