Bregman divergences are generalizations of the well known Kullback-Leibler divergence. They are based on convex functions and have recently received great attention. We present
a class of “squared root metrics” based on Bregman divergences. They can be regarded as natural
generalization of Euclidean distance. We provide necessary and sufficient conditions for a convex
function so that the square root of its associated average Bregman divergence is a metric.
@article{1229619676,
author = {Chen, P. and Chen, Y. and Rao, M.},
title = {Metrics defined by Bregman Divergences},
journal = {Commun. Math. Sci.},
volume = {6},
number = {1},
year = {2008},
pages = { 915-926},
language = {en},
url = {http://dml.mathdoc.fr/item/1229619676}
}
Chen, P.; Chen, Y.; Rao, M. Metrics defined by Bregman Divergences. Commun. Math. Sci., Tome 6 (2008) no. 1, pp. 915-926. http://gdmltest.u-ga.fr/item/1229619676/