Results 201 to 210 of about 115,613,181 (224)

Twist Fields in Many-Body Physics. [PDF]

Entropy (Basel)
Doyon B.
europepmc   +1 more source

Stochastic Gradient Descent in High Dimensions for Multi‐Spiked Tensor PCA

Communications on Pure and Applied Mathematics, Volume 79, Issue 10, Page 2291-2369, October 2026.
ABSTRACT We study the high‐dimensional dynamics of online stochastic gradient descent (SGD) for the multi‐spiked tensor model. This multi‐index model arises from the tensor principal component analysis (PCA) problem with multiple spikes, where the goal is to estimate the unknown signal vectors within the N$N$‐dimensional unit sphere through maximum ...
Gérard Ben Arous, Cédric Gerbelot, Vanessa Piccolo   +2 more
wiley   +1 more source

Integrating Distance Correlation and Adaptive Weighting with RBF Kernel Transformations: A Novel Feature Selection Framework with Application to ECG Arrhythmia Detection. [PDF]

Bioengineering (Basel)
Fira M, Fira L.
europepmc   +1 more source

Analysis of Eigenvalue Clustering Leads to Optimal Scaling in Numerical Radiative Transfer

Numerical Linear Algebra with Applications, Volume 33, Issue 5, October 2026.
ABSTRACT We consider a multidimensional polychromatic radiative transfer (RT) problem, accounting for scattering processes in a general form, that is, anisotropic (dipole) scattering with partial frequency redistribution. Given a discrete ordinates (SN$$ {S}_N $$) discretization, we report the corresponding matrix structures, depending on the model and
Pietro Benedusi, Simone Riva, Luca Belluzzi, Stefano Serra‐Capizzano   +3 more
wiley   +1 more source

Modeling wave scattering in impedance-lined duct networks with expansion chambers. [PDF]

PLoS One
Alrashdi A, Alkuhayli N, Safdar M.
europepmc   +1 more source

Exploring novel semi-inner product reproducing Kernels in Banach space for robust Kernel methods. [PDF]

PLoS One
Ding Y, Zhao Y, Pei Y.
europepmc   +1 more source

Dynamics, Noise, Delays and the Gibbs and Conditional Entropy. [PDF]

Entropy (Basel)
Mackey MC, Tyran-Kamińska M.
europepmc   +1 more source

The Group-Algebraic Formalism of Quantum Probability and Its Applications in Quantum Statistical Mechanics. [PDF]

Entropy (Basel)
Gu Y, Wang J.
europepmc   +1 more source

A mathematical analysis of math anxiety dynamics using a classical SAS model: Bridging epidemic theory and pedagogical implications. [PDF]

PLoS One
Islam S, Iqbal D, Saha M, Saha G.
europepmc   +1 more source

A Mathematical Analysis of IPT-DMFT. [PDF]

Commun Math Phys
Cancès E, Kirsch A, Perrin-Roussel S.
europepmc   +1 more source