Results 11 to 20 of about 424,964 (284)

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

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

Small area estimation with spatially varying natural exponential families [PDF]

open access: yesJournal of Statistical Computation and Simulation, 2020
Two-stage hierarchical models have been widely used in small area estimation to produce indirect estimates of areal means. When the areas are treated exchangeably and the model parameters are assumed to be the same over all areas, we might lose the efficiency in the presence of spatial heterogeneity.
Shonosuke Sugasawa   +2 more
openaire   +2 more sources

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

Bayesian approach to cubic natural exponential families [PDF]

open access: yesStatistics & Probability Letters, 2013
For a natural exponential family (NEF), one can associate in a natural way two standard families of conjugate priors, one on the natural parameter and the other on the mean parameter. These families of conjugate priors have been used to establish some remarkable properties and characterization results of the quadratic NEF's.
Hamza, Marwa, Hassairi, Abdelhamid
openaire   +3 more sources

Investigation of factors in improving Agrobacterium-mediated gene transfer in Ruellia tuberosa L. and evaluation of α-glucosidase inhibitory activity in established hairy roots

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca, 2022
Ruellia tuberosa (family Acanthaceae) is widely known in traditional medicine in Asian countries for the treatment of diabetes and other diseases. Its roots were demonstrated to possess a hypoglycemic ability in diabetic animal models. In this study, an
Dai M. CAO   +2 more
doaj   +1 more source

Exponential rate of convergence in current reservoirs [PDF]

open access: yes, 2015
In this paper we consider a family of interacting particle systems on [−N, N] that arises as a natural model for current reservoirs and Fick’s law. We study the exponential rate of convergence to the stationary measure, which we prove to be of the order ...
De Masi, Anna   +3 more
core   +2 more sources

Model Checking in Bits and Pieces [PDF]

open access: yesElectronic Proceedings in Theoretical Computer Science, 2013
Fully automated verification of concurrent programs is a difficult problem, primarily because of state explosion: the exponential growth of a program state space with the number of its concurrently active components.
Kedar S. Namjoshi
doaj   +1 more source

A Non-Linear Filtering Algorithm Based on Alpha-Divergence Minimization

open access: yesSensors, 2018
A non-linear filtering algorithm based on the alpha-divergence is proposed, which uses the exponential family distribution to approximate the actual state distribution and the alpha-divergence to measure the approximation degree between the two ...
Yarong Luo   +3 more
doaj   +1 more source

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