Results 31 to 40 of about 7,890 (182)

Hessian geometric structure of chemical thermodynamic systems with stoichiometric constraints

open access: yesPhysical Review Research, 2022
We establish a Hessian geometric structure in chemical thermodynamics, which describes chemical reaction networks (CRNs) with equilibrium states. In our setup, the ideal gas assumption and mass action kinetics are not required.
Yuki Sughiyama   +3 more
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   +9 more sources

Parametric Bayesian Estimation of Differential Entropy and Relative Entropy

open access: yesEntropy, 2010
Given iid samples drawn from a distribution with known parametric form, we propose the minimization of expected Bregman divergence to form Bayesian estimates of differential entropy and relative entropy, and derive such estimators for the uniform ...
Maya Gupta, Santosh Srivastava
doaj   +1 more source

Preconditioner Design via the Bregman Divergence

open access: yesCoRR, 2023
We study a preconditioner for a Hermitian positive definite linear system, which is obtained as the solution of a matrix nearness problem based on the Bregman log determinant divergence. The preconditioner is of the form of a Hermitian positive definite matrix plus a low-rank matrix.
Andreas A. Bock, Martin S. Andersen 0001
openaire   +2 more sources

Generalized Bregman Divergence and Gradient of Mutual Information for Vector Poisson Channels [PDF]

open access: yes, 2013
We investigate connections between information-theoretic and estimation-theoretic quantities in vector Poisson channel models. In particular, we generalize the gradient of mutual information with respect to key system parameters from the scalar to the ...
Carin, L, IEEE, Rodrigues, M, Wang, L
core   +2 more sources

Matrix Nearness Problems with Bregman Divergences [PDF]

open access: yesSIAM Journal on Matrix Analysis and Applications, 2008
This paper discusses a new class of matrix nearness problems that measure approximation error using a directed distance measure called a Bregman divergence. Bregman divergences offer an important generalization of the squared Frobenius norm and relative entropy, and they all share fundamental geometric properties.
Inderjit S. Dhillon, Joel A. Tropp
openaire   +2 more sources

Divergence Family Contribution to Data Evaluation in Blockchain Via Alpha-EM and Log-EM Algorithms

open access: yesIEEE Access, 2021
This study interrelates three adjacent topics in data evaluation. The first is the establishment of a relationship between Bregman divergence and probabilistic alpha-divergence.
Yasuo Matsuyama
doaj   +1 more source

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

Bregman superquantiles. Estimation methods and applications

open access: yesDependence Modeling, 2016
In thiswork,we extend some parameters built on a probability distribution introduced before to the casewhere the proximity between real numbers is measured by using a Bregman divergence.
Labopin-Richard T.   +3 more
doaj   +1 more source

The Burbea-Rao and Bhattacharyya centroids [PDF]

open access: yes, 2011
We study the centroid with respect to the class of information-theoretic Burbea-Rao divergences that generalize the celebrated Jensen-Shannon divergence by measuring the non-negative Jensen difference induced by a strictly convex and differentiable ...
Frank Nielsen   +2 more
core   +2 more sources

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