Results 51 to 60 of about 3,133 (170)

A proof of convergence of multi-class logistic regression network [PDF]

open access: yes, 1941
This paper revisits the special type of a neural network known under two names. In the statistics and machine learning community it is known as a multi-class logistic regression neural network.
Rychlik, Marek
core   +3 more sources

Harmonic mean density fusion in distributed tracking: Performance and comparison

open access: yesIET Radar, Sonar &Navigation, EarlyView.
In distributed tracking, the harmonic mean density (HMD) fusion can deal with issues, such as non‐independent estimates, inflated covariance and fusion of Gaussian mixtures. This article provides some important results on HMD and shares its resemblance with the state‐of‐the‐art inverse covariance intersection (ICI). Abstract A distributed sensor fusion
Nikhil Sharma   +2 more
wiley   +1 more source

Expanding the Applicability of Stirling’s Method under Weaker Conditions and Restricted Convergence Regions

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2018
In this paper we have provided sufficient conditions to study semilocal and local convergence of the Stirling’s method. The method is used to find fixed points of nonlinear operator equation.
Argyros Ioannis K., Parida P.K.
doaj   +1 more source

Stability of equilibrium under constraints: Role of second-order constrained derivatives

open access: yes, 2010
In the stability analysis of an equilibrium, given by a stationary point of a functional F[n] (free energy functional, e.g.), the second derivative of F[n] plays the essential role.
Gal, Tamas
core   +1 more source

Phase and absorbance retrieval in X‐ray holographic microscopy under weak illumination using physics‐driven neural networks

open access: yesJournal of Synchrotron Radiation, EarlyView.
A physics‐driven deep learning model enables single‐shot retrieval of 3D phase and absorbance from shot‐noise‐limited hard X‐ray holograms. Validated on both synthetic and experimental data, it provides robust reconstruction under weak illumination.X‐ray holographic microscopy is a three‐dimensional (3D) imaging technique for nanoscale‐resolution ...
Jihwan Kim   +4 more
wiley   +1 more source

On bifurcation points of strongly condensing operators

open access: yesНаучный вестник МГТУ ГА, 2016
Two conditions equivalent to complete continuity of Frechet derivative at a point and the asymptotic derivative in the case of their existence are given. Theorem of M.A. Krasnosel’skii on asymptotic bifurcation points for completely con-tinuous fields to
N. A. Erzakova
doaj  

On the existence of steady periodic capillary-gravity stratified water waves [PDF]

open access: yes, 2013
We prove the existence of small steady periodic capillary-gravity water waves for general stratified flows, where we allow for stagnation points in the flow.
Henry, David, Matioc, Bogdan-Vasile
core   +1 more source

Real‐Time Conformal Maps and Parameterizations

open access: yesComputer Graphics Forum, EarlyView.
Abstract We present a simple algorithm to conformally map between two simple and bounded planar domains based on the concept of harmonic measure, which is a conformal invariant. With suitable preprocessing, the algorithm is fast enough to compute all possible conformal maps (having three real degrees of freedom) between the two domains in real time in
Q. Chang, C. Gotsman, K. Hormann
wiley   +1 more source

The Continuous Classical Boundary Optimal Control of a Couple Linear Of Parabolic Partial Differential Equations

open access: yesAl-Mustansiriyah Journal of Science, 2018
In this paper the continuous classical boundary optimal problem of a couple linear partial differential equations of parabolic type is studied, The Galerkin method is used to prove the existence and uniqueness theorem of the state vector solution of a ...
Jamil Amir Al-hawasy
doaj   +1 more source

Existence, Uniqueness, and Mittag–Leffler–Ulam Stability Results for Cauchy Problem Involving ψ-Caputo Derivative in Banach and Fréchet Spaces

open access: yesInternational Journal of Differential Equations, 2020
Our aim in this paper is to investigate the existence, uniqueness, and Mittag–Leffler–Ulam stability results for a Cauchy problem involving ψ-Caputo fractional derivative with positive constant coefficient in Banach and Fréchet Spaces.
Choukri Derbazi   +3 more
doaj   +1 more source

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