Results 261 to 270 of about 29,876 (304)

A projection iterative algorithm boundary element method for the Signorini problem

open access: yesEngineering Analysis With Boundary Elements, 2013
International audienceWe propose a projection iterative algorithm based on a fixed point equation for solving a certain class of Signorini problem. The satisfaction of the Signorini boundary conditions is verified in a projection iterative manner, and at
Shougui Zhang, Jialin Zhu
exaly   +3 more sources

Quasi-Newton Iterative Projection Algorithm for Sparse Recovery

Neurocomputing, 2014
Mingli Jing, Xueqin Zhou, Chun Qi
exaly   +2 more sources

Iterative projection algorithms and applications in x-ray crystallography [PDF]

open access: yes, 2011
X-ray crystallography is a technique for determining the structure (positions of atoms in space) of molecules. It is a well developed technique, and is applied routinely to both small inorganic and large organic molecules. However, the determination of the structures of large biological molecules by x-ray crystallography can still be an experimentally ...
Lo, Victor Lai-Xin
openaire   +3 more sources

Fast algorithm for Joseph’s forward projection in iterative computed tomography reconstruction

Journal of Ambient Intelligence and Humanized Computing, 2022
Shunli Zhang, Haibo Zhang
exaly   +2 more sources

Iterative Projection Approximation Algorithms for PCA

2006 IEEE International Conference on Acoustics Speed and Signal Processing Proceedings, 2006
In this paper we introduce a new error measure, integrated reconstruction error (IRE), the minimization of which leads to principal eigenvectors (without rotational ambiguity) of the data covariance matrix. Then we present iterative algorithms for the IRE minimization, through the projection approximation.
Seungjin Choi   +2 more
openaire   +1 more source

Video image super-resolution restoration based on iterative back-projection algorithm

open access: yes, 2009
Image fusion was one of the most important technology of pattern recognition. This paper proposed a fast superresolution image reconstruction algorithm basing on image sequences.
Baikun Wan, Lin Meng, Dong Ming
exaly   +2 more sources

Characteristics of iterative projection algorithms

SPIE Proceedings, 2012
A brief description of various iterative projection algorithms and the relationships between them is given, along with some possible reasons for their ability to solve non-convex problems. An empirical model of their behaviour when applied to non-convex problems is also described.
Victor Lo, Rick P. Millane
openaire   +1 more source

Iterative projection algorithms in protein crystallography. II. Application

Acta Crystallographica Section A Foundations and Advances, 2015
Iterative projection algorithms (IPAs) are a promising tool for protein crystallographic phase determination. Although related to traditional density-modification algorithms, IPAs have better convergence properties, and, as a result, can effectively overcome the phase problem given modest levels of structural redundancy. This is illustrated by applying
Lo, Victor L.   +2 more
openaire   +2 more sources

An iterative algorithm for the projective registration of free form surfaces

Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101), 2002
In this paper we present a novel image registration algorithm combining the iterative closest point algorithm with focus of expansion theory for 3D-2D projective registration of free-form surfaces. A pure translational camera configuration is used, which is a widely adopted constraint to structural estimation.
Yonghuai Liu, Marcos A. Rodrigues 0001
openaire   +1 more source

Iterative Project Quasi-Newton Algorithm for Training RBM

Proceedings of the AAAI Conference on Artificial Intelligence, 2016
The restricted Boltzmann machine (RBM) has been used as building blocks for many successful deep learning models, e.g., deep belief networks (DBN) and deep Boltzmann machine (DBM) etc. The training of RBM can be extremely slow in pathological regions.
Shuai Mi   +5 more
openaire   +1 more source

Home - About - Disclaimer - Privacy