Results 11 to 20 of about 544,925 (236)

Quasi-monomials with respect to subgroups of the plane affine group

open access: yesМатематичні Студії, 2023
Let $H$ be a subgroup of the plane affine group ${\rm Aff}(2)$ considered with the natural action on the vector space of two-variable polynomials. The polynomial family $\{ B_{m,n}(x,y) \}$ is called quasi-monomial with respect to $H$ if the group ...
N. M. Samaruk
doaj   +1 more source

Bayesian Hierarchical Models With Conjugate Full-Conditional Distributions for Dependent Data From the Natural Exponential Family [PDF]

open access: yes, 2017
We introduce a Bayesian approach for analyzing (possibly) high-dimensional dependent data that are distributed according to a member from the natural exponential family of distributions.
J. Bradley, S. Holan, C. Wikle
semanticscholar   +1 more source

The curved exponential family of a staged tree [PDF]

open access: yesElectronic Journal of Statistics, 2020
: Staged tree models are a discrete generalization of Bayesian networks. We show that these form curved exponential families and derive their natural parameters, sufficient statistic, and cumulant-generating func- tion as functions of their graphical ...
Christiane Gorgen   +2 more
semanticscholar   +1 more source

Size, Cost, and Capacity: A Semantic Technique for Hard Random QBFs [PDF]

open access: yesLogical Methods in Computer Science, 2019
As a natural extension of the SAT problem, an array of proof systems for quantified Boolean formulas (QBF) have been proposed, many of which extend a propositional proof system to handle universal quantification.
Olaf Beyersdorff   +2 more
doaj   +1 more source

Group Invariance of Information Geometry on q-Gaussian Distributions Induced by Beta-Divergence

open access: yesEntropy, 2013
We demonstrate that the q-exponential family particularly admits natural geometrical structures among deformed exponential families. The property is the invariance of structures with respect to a general linear group, which transitively acts on the space
Shinto Eguchi, Atsumi Ohara
doaj   +1 more source

Entropic Dynamics on Gibbs Statistical Manifolds

open access: yesEntropy, 2021
Entropic dynamics is a framework in which the laws of dynamics are derived as an application of entropic methods of inference. Its successes include the derivation of quantum mechanics and quantum field theory from probabilistic principles.
Pedro Pessoa   +2 more
doaj   +1 more source

Semiparametric Smoothing Spline in Joint Mean and Dispersion Models with Responses from the Biparametric Exponential Family: A Bayesian Perspective

open access: yes, 2021
This article extends the fusion among various statistical methods to estimate the mean and variance functions in heteroscedastic semiparametric models when the response variable comes from a two-parameter exponential family distribution.
Héctor Zárate, Edilberto Cepeda
semanticscholar   +1 more source

Superintegrability of matrix Student's distribution

open access: yesPhysics Letters B, 2022
For ordinary matrix models, the eigenvalue probability density decays rapidly as one goes to infinity, in other words, has “short tails”. This ensures that all the multiple trace correlators (multipoint moments) are convergent and well-defined.
A. Mironov, A. Morozov, A. Popolitov
doaj   +1 more source

Deformed Algebras and Generalizations of Independence on Deformed Exponential Families

open access: yesEntropy, 2015
A deformed exponential family is a generalization of exponential families. Since the useful classes of power law tailed distributions are described by the deformed exponential families, they are important objects in the theory of complex systems.
Hiroshi Matsuzoe, Tatsuaki Wada
doaj   +1 more source

Geometric inflation

open access: yesPhysics Letters B, 2020
We argue that the presence of an inflationary epoch is a natural, almost unavoidable, consequence of the existence of a sensible action involving an infinite tower of higher-curvature corrections to the Einstein-Hilbert action.
Gustavo Arciniega   +5 more
doaj   +1 more source

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