Results 221 to 230 of about 320,618 (278)

Riemannian Score-Based Generative Modeling

Neural Information Processing Systems, 2022
Score-based generative models (SGMs) are a powerful class of generative models that exhibit remarkable empirical performance. Score-based generative modelling (SGM) consists of a ``noising'' stage, whereby a diffusion is used to gradually add Gaussian ...
Valentin De Bortoli, Emile Mathieu, M. Hutchinson, James Thornton, Y. Teh, A. Doucet   +5 more
semanticscholar   +1 more source

Flowing on Riemannian Manifold: Domain Adaptation by Shifting Covariance

IEEE Transactions on Cybernetics, 2014
Domain adaptation has shown promising results in computer vision applications. In this paper, we propose a new unsupervised domain adaptation method called domain adaptation by shifting covariance (DASC) for object recognition without requiring any ...
Zhen Cui, Wen Li, Dong Xu, S. Shan, Xilin Chen, Xuelong Li   +5 more
semanticscholar   +1 more source

Riemannian Metrics and Riemannian Manifolds

2020
Fortunately, the rich theory of vector spaces endowed with a Euclidean inner product can, to a great extent, be lifted to the tangent bundle of a manifold. The idea is to equip the tangent space TpM at p to the manifold M with an inner product 〈−, −〉p, in such a way that these inner products vary smoothly as p varies on M. It is then possible to define
Jean Gallier, Jocelyn Quaintance
openaire   +1 more source

A Symplectic Integrator for Riemannian Manifolds

Journal of Nonlinear Science, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Leimkuhler, B., Patrick, G. W.
openaire   +1 more source

On the Stochastic Strichartz Estimates and the Stochastic Nonlinear Schrödinger Equation on a Compact Riemannian Manifold

Potential Analysis, 2012
We prove the existence and the uniqueness of a solution to the stochastic NSLEs on a two-dimensional compact riemannian manifold. Thus we generalize (and improve) a recent work by Burq et al.
Z. Brzeźniak, A. Millet
semanticscholar   +1 more source

Biharmonic hypersurfaces in a Riemannian manifold with non-positive Ricci curvature

Geometry of Biharmonic Mappings, 2011
In this article, we show that, for a biharmonic hypersurface (M, g) of a Riemannian manifold (N, h) of non-positive Ricci curvature, if $${\int_M\vert H\vert^2 ...
Nobumitsu Nakauchi, H. Urakawa
semanticscholar   +1 more source

The Manifolds Covered by a Riemannian Homogeneous Manifold

American Journal of Mathematics, 1960
Introduction. The sphere is known to be the universal covering for complete connected Riemannian manifolds of constant positive curvature. More precisely, if M is an n-dimensional complete connected Riemannian manifold of constant sectional curvature k2 > 0 with k > 0, and if Sn is the sphere of radius k-1 in Euclidean space RI'+', with the induced ...
openaire   +2 more sources

On the Curvatura Integra in a Riemannian Manifold

The Annals of Mathematics, 1945
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Inferring imagined speech using EEG signals: a new approach using Riemannian manifold features

Journal of Neural Engineering, 2018
Chuong H. Nguyen, George K. Karavas, P. Artemiadis   +2 more
semanticscholar   +1 more source

Riemannian Manifold Hamiltonian Monte Carlo based subset simulation for reliability analysis in non-Gaussian space

Structural Safety, 2022
Ziqi Wang, Marco Broccardo, Junho Song   +2 more
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