Displaying similar documents to “Semantic analysis of topic and focus”

Tree and local computations in a cross–entropy minimization problem with marginal constraints

Francesco M. Malvestuto (2010)

Kybernetika

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In probability theory, Bayesian statistics, artificial intelligence and database theory the minimum cross-entropy principle is often used to estimate a distribution with a given set P of marginal distributions under the proportionality assumption with respect to a given “prior” distribution q . Such an estimation problem admits a solution if and only if there exists an extension of P that is dominated by q . In this paper we consider the case that q is not given explicitly, but is specified...