Results 11 to 20 of about 640,277 (338)

Double calculus [PDF]

open access: yesSurveys in Mathematics and its Applications, 2023
We present a streamlined, slightly modified version, in the two-variable situation, of a beautiful, but not so well known, theory by Bögel, already from the 1930s, on an alternative higher dimensional calculus of real functions, a double calculus, which ...
Patrik Lundström
doaj  

Chaotic intermittency with non-differentiable M(x) function

open access: yesRevista Facultad de Ingeniería Universidad de Antioquia, 2023
One-dimensional maps showing chaotic intermittency with discontinuous reinjection probability density functions are studied. For these maps, the reinjection mechanism possesses two different processes.
Sergio Elaskar   +2 more
doaj   +1 more source

An Improved Technique for Pneumonia Infected Patients Image Recognition Based on Combination Algorithm of Smooth Generalized Pinball SVM and Variational Autoencoders

open access: yesIEEE Access, 2022
We present a method based on combining a smooth generalized pinball support vector machine (SVM) and variational autoencoders (VAEs) in chest X-ray (CXR) images.
Wachiraphong Ratiphaphongthon   +2 more
doaj   +1 more source

Implications of Non-Differentiable Entropy on a Space-Time Manifold

open access: yesEntropy, 2015
Assuming that the motions of a complex system structural units take place on continuous, but non-differentiable curves of a space-time manifold, the scale relativity model with arbitrary constant fractal dimension (the hydrodynamic and wave function ...
Maricel Agop   +3 more
doaj   +1 more source

Implementation Aspects in Regularized Structural Equation Models

open access: yesAlgorithms, 2023
This article reviews several implementation aspects in estimating regularized single-group and multiple-group structural equation models (SEM). It is demonstrated that approximate estimation approaches that rely on a differentiable approximation of non ...
Alexander Robitzsch
doaj   +1 more source

Differentiable Earth mover’s distance for data compression at the high-luminosity LHC

open access: yesMachine Learning: Science and Technology, 2023
The Earth mover’s distance (EMD) is a useful metric for image recognition and classification, but its usual implementations are not differentiable or too slow to be used as a loss function for training other algorithms via gradient descent. In this paper,
Rohan Shenoy   +7 more
doaj   +1 more source

On Differentiable Functionals [PDF]

open access: yesThe Annals of Statistics, 1991
Given a sample of size $n$ from a distribution $P_\lambda$, one wants to estimate a functional $\psi(\lambda)$ of the (typically infinite-dimensional) parameter $\lambda$. Lower bounds on the performance of estimators can be based on the concept of a differentiable functional $P_\lambda \rightarrow \psi(\lambda)$.
openaire   +2 more sources

On a conjecture of Král concerning the subharmonic extension of continuously differentiable functions [PDF]

open access: yesMathematica Bohemica, 2020
This note verifies a conjecture of Král, that a continuously differentiable function, which is subharmonic outside its critical set, is subharmonic everywhere.
Stephen J. Gardiner, Tomas Sjödin
doaj   +1 more source

Generalized (p,q)-analogues of Dragomir-Agarwal's inequalities involving Raina's function and applications

open access: yesAIMS Mathematics, 2022
In this paper, we introduce the class of generalized strongly convex functions using Raina's function. We derive two new general auxiliary results involving first and second order (p,q)-differentiable functions and Raina's function.
Miguel Vivas-Cortez   +4 more
doaj   +1 more source

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