Results 1 to 10 of about 4,391 (253)

Transformation Equivalence of Neural Networks [PDF]

open access: yesEntropy
Multilayer perceptrons (MLPs) are considered as a singular model of learning machines. Singularities cause local minima and plateaus in the learning process. I/O-equivalence, where two different MLPs are regarded as the same multivariable function, is an
Masaki Kobayashi
doaj   +2 more sources

A Lie group-based hybrid optimization framework for multi-objective UAV path planning using L-VGWO [PDF]

open access: yesScientific Reports
To address the challenges of high-precision pose alignment, dynamic path smoothness, and efficient multi-objective optimization in three-dimensional UAV path planning under complex environments, this study proposes the Lie Group-based Griffon Vulture ...
Yadong Wang   +4 more
doaj   +2 more sources

The Poincaré Index on Singular Varieties

open access: yesJ, 2022
In this paper, we discuss a few simple methods for computing the local topological index and its various analogs for vector fields and differential forms given on complex varieties with singularities of different types.
Alexander G. Aleksandrov
doaj   +1 more source

The Poincaré Index and Its Applications

open access: yesUniverse, 2022
We discuss an approach to the problem of calculating the local topological index of vector fields given on complex spaces or varieties with singularities developed by the author over the past few years. Our method is based on the study of the homology of
Alexander G. Aleksandrov
doaj   +1 more source

Mapping local singularities using magnetic data to investigate the volcanic rocks of the Qikou depression, Dagang oilfield, eastern China [PDF]

open access: yesNonlinear Processes in Geophysics, 2013
The spatial structural characteristics of geological anomaly, including singularity and self-similarity, can be analysed using fractal or multifractal modelling. Here we apply the multifractal methods to potential fields to demonstrate that singularities
G. Chen, Q. Cheng, T. Liu, Y. Yang
doaj   +1 more source

Proliferation of non-linear excitations in the piecewise-linear perceptron

open access: yesSciPost Physics, 2021
We investigate the properties of local minima of the energy landscape of a continuous non-convex optimization problem, the spherical perceptron with piecewise linear cost function and show that they are critical, marginally stable and displaying a set of
Antonio Sclocchi, Pierfrancesco Urbani
doaj   +1 more source

Celestial insights into the S-matrix bootstrap

open access: yesJournal of High Energy Physics, 2022
We consider 2-2 scattering in four spacetime dimensions in Celestial variables. Using the crossing symmetric dispersion relation (CSDR), we recast the Celestial amplitudes in terms of crossing symmetric partial waves.
Sudip Ghosh   +2 more
doaj   +1 more source

Enhancement of Optical Spin-Orbit Coupling in Anisotropic ENZ Metamaterials

open access: yesIEEE Photonics Journal, 2023
Vector vortex beams which possess complex intensity and polarisation patterns, and phase or polarisation singularities are important in a variety of applications ranging from high resolution imaging and data transmission to nonlinear optics and quantum ...
Vittorio Aita, Anatoly V. Zayats
doaj   +1 more source

Company welfare in modern Argentine railways: characteristics and challenges (1890-1920)

open access: yesRevista Mundos do Trabalho, 2021
This article explores company welfare programs in the railways in modern Argentina from the 1890s to the 1920s. It concentrates on the singularities of these companies' strategies, considering that the local society was shaped by a process of mass ...
Silvana A. Palermo
doaj   +1 more source

Documentation strategies for a non-invasive structural and decay analysis of medieval civil towers: an application on the Clock Tower in Pavia

open access: yesRestauro Archeologico, 2021
The civil towers in Pavia are a distinctive element of the city’s architectural heritage, dating back to the Medieval Age as a statement of the lordship’s power and wealth.
Sandro Parrinello   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy