Results 81 to 90 of about 3,216 (210)

Survey on differential estimators for 3d point clouds

open access: yesComputer Graphics Forum, EarlyView.
Abstract Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of real‐world objects. These methods are widely used in fields such as GIS, robotics, and cultural heritage. However, the point clouds generated by such scans are often noisy and unstructured, posing challenges for ...
Léo Arnal–Anger   +4 more
wiley   +1 more source

Non‐Rigid 3D Shape Correspondences: From Foundations to Open Challenges and Opportunities

open access: yesComputer Graphics Forum, EarlyView.
Abstract Estimating correspondences between deformed shape instances is a long‐standing problem in computer graphics; numerous applications, from texture transfer to statistical modelling, rely on recovering an accurate correspondence map. Many methods have thus been proposed to tackle this challenging problem from varying perspectives, depending on ...
A. Zhuravlev   +14 more
wiley   +1 more source

A guide to neural ordinary differential equations: Machine learning for data-driven digital engineering

open access: yesDigital Engineering
Advances in deep learning have impacted all areas of business, government and academia, and deep learning is expanding into domains that are beyond the scope of the standard Computer Science curriculum.
Joseph M. Worsham, Jugal K. Kalita
doaj   +1 more source

The computation of eigenvalues and eigenvector of a completely continuous self-adjoint operator

open access: yesJournal of Computer and System Sciences, 1967
AbstractIf A is a completely continuous self-adjoint operator on a Hilbert space its eigenvalues are the values of the inner product at stationary points on the unit sphere. Gradient procedures can be used to determine eigenvectors and eigenvalues provided that certain regularity conditions hold at the eigenvectors.
openaire   +2 more sources

A Continuous Adjoint Framework For Vehicle Aerocoustic Optimization

open access: yes, 2018
This paper presents a novel adjoint-based methodology for vehicle aeroacoustic optimization. The adjoint sensitivity map on the side mirror is computed, which indicates how its geometry should change in order to reduce the wind noise transmission into the vehicle interior.
Kapellos, C.,, Hartmann, M.,
openaire   +1 more source

Establishing Shape Correspondences: A Survey

open access: yesComputer Graphics Forum, EarlyView.
Abstract Shape correspondence between surfaces in 3D is a central problem in geometry processing, concerned with establishing meaningful relations between surfaces. While all correspondence problems share this goal, specific formulations can differ significantly: Downstream applications require certain properties that correspondences must satisfy ...
A. Heuschling, H. Meinhold, L. Kobbelt
wiley   +1 more source

Reflexivity, the dual Radon-Nikodym property, and continuity of adjoint semigroups II

open access: yesIndagationes Mathematicae, 1990
The author continues his investigation [see the same journal 1, No. 3, 365-380 (1990; Zbl 0728.46019)] on the relations between the behaviour of a \(C_ 0\)-semigroup \(T(t)\) and the structure of the underlying Banach space \(X\). He proves that if \(X\) fails to have Radon-Nikodym property then \(X^{\odot *}/X\) is nonseparable and if \(X^*\) lacks ...
openaire   +3 more sources

Optimal Portfolio Choice With Cross‐Impact Propagators

open access: yesMathematical Finance, EarlyView.
ABSTRACT We consider a class of optimal portfolio choice problems in continuous time where the agent's transactions create both transient cross‐impact driven by a matrix‐valued Volterra propagator, as well as temporary price impact. We formulate this problem as the maximization of a revenue‐risk functional, where the agent also exploits available ...
Eduardo Abi Jaber   +2 more
wiley   +1 more source

Dependence of eigenvalues of 2mth-order spectral problems

open access: yesBoundary Value Problems, 2017
A regular 2mth-order spectral problem with self-adjoint boundary conditions is considered in this paper. The continuous dependence of eigenvalues and normalized eigenfunctions on the problem is researched.
Zhaowen Zheng, Yujuan Ma
doaj   +1 more source

Frequency‐dependent contraction rates for the Bayesian method to the inverse source problem

open access: yesTransactions of the London Mathematical Society, Volume 13, Issue 1, December 2026.
Abstract This paper addresses an inverse source problem for acoustic waves in a range of frequencies. Our study has two main goals. First, although the problem is severely ill‐posed with a logarithmic stability estimate, we demonstrate, through careful analysis of the forward map's singular values, that increasing the frequency range enhances stability,
Pu‐Zhao Kow, Jenn‐Nan Wang
wiley   +1 more source

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