Results 21 to 30 of about 3,294 (168)

Convergence Rates of Gradient Methods for Convex Optimization in the Space of Measures

open access: yesOpen Journal of Mathematical Optimization, 2023
We study the convergence rate of Bregman gradient methods for convex optimization in the space of measures on a $d$-dimensional manifold. Under basic regularity assumptions, we show that the suboptimality gap at iteration $k$ is in $O(\log (k)k^{-1 ...
Chizat, Lénaïc
doaj   +1 more source

Burkholder inequality by Bregman divergence

open access: yesBulletin of the Polish Academy of Sciences Mathematics, 2022
We updated a reference, corrected constants c_p and C_p, and made small editorial changes.
Bogdan, Krzysztof, Więcek, Mateusz
openaire   +2 more sources

Generalizing the Alpha-Divergences and the Oriented Kullback–Leibler Divergences with Quasi-Arithmetic Means

open access: yesAlgorithms, 2022
The family of α-divergences including the oriented forward and reverse Kullback–Leibler divergences is often used in signal processing, pattern recognition, and machine learning, among others.
Frank Nielsen
doaj   +1 more source

Bregman Voronoi Diagrams: Properties, Algorithms and Applications [PDF]

open access: yes, 2007
The Voronoi diagram of a finite set of objects is a fundamental geometric structure that subdivides the embedding space into regions, each region consisting of the points that are closer to a given object than to the others.
A. Banerjee   +33 more
core   +11 more sources

Maps on positive definite matrices preserving Bregman and Jensen divergences [PDF]

open access: yes, 2015
In this paper we determine those bijective maps of the set of all positive definite $n\times n$ complex matrices which preserve a given Bregman divergence corresponding to a differentiable convex function that satisfies certain conditions.
Molnár, Lajos   +2 more
core   +2 more sources

Worst-case and smoothed analysis of k-means clustering with Bregman divergences

open access: yesJournal of Computational Geometry, 2013
The k-means method is the method of choice for clustering large-scale data sets and it performs exceedingly well in practice despite its exponential worst-case running-time.
Bodo Manthey, Heiko Roeglin
doaj   +1 more source

Non-flat clustering whith alpha-divergences [PDF]

open access: yes, 2011
International audienceThe scope of the well-known $k$-means algorithm has been broadly extended with some recent results: first, the k-means++ initialization method gives some approximation guarantees; second, the Bregman k-means algorithm generalizes ...
Nielsen, Frank, Schwander, Olivier
core   +3 more sources

Log-Determinant Divergences Revisited: Alpha-Beta and Gamma Log-Det Divergences

open access: yesEntropy, 2015
This work reviews and extends a family of log-determinant (log-det) divergences for symmetric positive definite (SPD) matrices and discusses their fundamental properties.
Andrzej Cichocki   +2 more
doaj   +1 more source

Discounted dynamic optimization and Bregman divergence

open access: yesJournal of Mathematical Economics, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Metrics defined by Bregman Divergences [PDF]

open access: yesCommunications in Mathematical Sciences, 2008
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.
Chen, P., Chen, Y., Rao, M.
openaire   +2 more sources

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