Results 11 to 20 of about 235,085 (295)

SOFIM: Stochastic Optimization Using Regularized Fisher Information Matrix [PDF]

open access: green2024 International Joint Conference on Neural Networks (IJCNN)
This paper introduces a new stochastic optimization method based on the regularized Fisher information matrix (FIM), named SOFIM, which can efficiently utilize the FIM to approximate the Hessian matrix for finding Newton's gradient update in large-scale stochastic optimization of machine learning models.
C. Gayathri   +5 more
openalex   +3 more sources

Fisher Information and Logarithmic Sobolev Inequality for Matrix Valued Functions [PDF]

open access: greenAnnales Henri Poincaré, 2018
We prove a version of Talagrand's concentration inequality for subordinated sub-Laplacian on a compact Riemannian manifold using tools from noncommutative geometry. As an application, motivated by quantum information theory, we show that on a finite dimensional matrix algebra the set of self-adjoint generators satisfying a tensor stable modified ...
Li Gao, Marius Junge, Nicolas LaRacuente
openalex   +4 more sources

On weighted Fisher information matrix properties [PDF]

open access: green, 2016
In this paper, we review Fisher information matrices properties in weighted version and discuss inequalities/bounds on it by using reduced weight functions. In particular, an extended form of the Fisher information inequality previously established in [6] is given.
Mark Kelbert   +2 more
openalex   +3 more sources

Comparing the Fisher information matrix in record values and random observations for the general class of exponentiated distributions [PDF]

open access: goldJournal of Statistical Theory and Applications (JSTA), 2017
In this paper, the Fisher information matrix (FIM) contained in n record values is considered for the two parameter distributions belong to the exponentiated and inverse exponentiated class of distributions. The problem of existence and uniqueness of the
Fatih Kızılaslan
doaj   +3 more sources

Weak convexity of Fisher information matrix and superresolved localization of blinking sources of light

open access: goldPhysical Review Research
A group of techniques known by the general name of single-molecule localization microscopy reaches a nanometer-scale spatial resolution of point light emitters, well below the diffraction limit of traditional microscopy.
Dmitri B. Horoshko   +3 more
doaj   +2 more sources

Asymptotic Fisher information matrix of Markov switching VARMA models

open access: greenJournal of Multivariate Analysis, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Maddalena Cavicchioli
openalex   +4 more sources

Quantifying entanglement dimensionality from the quantum Fisher information matrix [PDF]

open access: green
Entanglement is known to be an essential resource for a number of tasks, including quantum-enhanced metrology, and can thus be quantified by figures of merit related to those tasks. In quantum metrology this is emphasized by the connections between the quantum Fisher information (QFI), providing the ultimate bounds of precision, and multipartite ...
Shuya Du   +4 more
openalex   +3 more sources

An Algorithm for the Fisher Information Matrix of a VARMAX Process

open access: yesAlgorithms, 2023
In this paper, an algorithm for Mathematica is proposed for the computation of the asymptotic Fisher information matrix for a multivariate time series, more precisely for a controlled vector autoregressive moving average stationary process, or VARMAX ...
André Klein, Guy Mélard
doaj   +1 more source

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