نتایج جستجو برای: divergence measures

تعداد نتایج: 399991  

Journal: :Bioinformatics 2001
Dirk Husmeier Frank Wright

This paper proposes a graphical method for detecting interspecies recombination in multiple alignments of DNA sequences. A fixed-size window is moved along a given DNA sequence alignment. For every position, the marginal posterior probability over tree topologies is determined by means of a Markov chain Monte Carlo simulation. Two probabilistic divergence measures are plotted along the alignmen...

Journal: :Fuzzy Sets and Systems 2006
Joaquín Abellán Manuel Gómez-Olmedo

When there is uncertainty about the values of a variable, it is possible to have different pieces of information about it. This can be due to the fact that they represent the points of view of different agents and these agents have followed different criteria when codify the pieces of information by means of numbers. The aim of this paper is to provide tools for the comparison of these represen...

Journal: :CoRR 2017
Lei Yu Vincent Y. F. Tan

We study a generalized version of Wyner’s common information problem (also coined the distributed sources simulation problem). The original common information problem consists in understanding the minimum rate of the common input to independent processors to generate an approximation of a joint distribution when the distance measure used to quantify the discrepancy between the synthesized and t...

2004
Patrick Flandrin

A study of the phase and amplitude sensitivity of the recently proposed RCnyi time-frequency information measure leads to the introduction of a new “Jensen-like” divergence measure. While this quantity promises to be a useful indicator of the distance between two time-frequency distributions, it is limited to the analysis of positive definite TFDs. In spite of this rather severe limitation, thi...

2006
XuanLong Nguyen Martin J. Wainwright Michael I. Jordan

In this extended abstract, we provide an overview of our recent work on the connection between information divergence measures and convex surrogate loss functions used in statistical machine learning. Further details can be found in the technical report [7] and conference paper [6]. The class of f -divergences, introduced independently by Csiszar [4] and Ali and Silvey [1], arise in many areas ...

2010
S. AMARI A. CICHOCKI

Measures of divergence between two points play a key role in many engineering problems. One such measure is a distance function, but there are many important measures which do not satisfy the properties of the distance. The Bregman divergence, KullbackLeibler divergence and f -divergence are such measures. In the present article, we study the differential-geometrical structure of a manifold ind...

Journal: :Sultan Qaboos University Journal for Science [SQUJS] 2006

Journal: :Communications in Statistics - Theory and Methods 2013

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