Global Information Lookup Global Information

LOBPCG information


Locally Optimal Block Preconditioned Conjugate Gradient (LOBPCG) is a matrix-free method for finding the largest (or smallest) eigenvalues and the corresponding eigenvectors of a symmetric generalized eigenvalue problem

for a given pair of complex Hermitian or real symmetric matrices, where the matrix is also assumed positive-definite.

and 12 Related for: LOBPCG information

Request time (Page generated in 0.5763 seconds.)

LOBPCG

Last Update:

Locally Optimal Block Preconditioned Conjugate Gradient (LOBPCG) is a matrix-free method for finding the largest (or smallest) eigenvalues and the corresponding...

Word Count : 4427

Spectral clustering

Last Update:

a key technology accelerating the convergence, e.g., in the matrix-free LOBPCG method. Spectral clustering has been successfully applied on large graphs...

Word Count : 2933

Principal component analysis

Last Update:

algorithm or the Locally Optimal Block Preconditioned Conjugate Gradient (LOBPCG) method. Subsequent principal components can be computed one-by-one via...

Word Count : 14214

Power iteration

Last Update:

sacrificing the small cost per iteration; see, e.g., Lanczos iteration and LOBPCG. Some of the more advanced eigenvalue algorithms can be understood as variations...

Word Count : 2497

ARPACK

Last Update:

various groups that rely on ARPACK. Free and open-source software portal LOBPCG, a different matrix-free method for symmetric or Hermitian matrices only...

Word Count : 338

Eigenvalue algorithm

Last Update:

quotient of the previous iteration. Preconditioned inverse iteration or LOBPCG algorithm positive-definite real symmetric eigenpair with value closest...

Word Count : 4863

Graph partition

Last Update:

eigenvectors of the graph Laplacian matrix for the original graph computed by LOBPCG solver with multigrid preconditioning. Given a graph G = ( V , E ) {\displaystyle...

Word Count : 3345

Multigrid method

Last Update:

preconditioned steepest descent and flexible CG methods for SPD linear systems and LOBPCG for symmetric eigenvalue problems are all shown to be robust if the preconditioner...

Word Count : 2824

List of numerical analysis topics

Last Update:

matrices Divide-and-conquer eigenvalue algorithm Folded spectrum method LOBPCG — Locally Optimal Block Preconditioned Conjugate Gradient Method Eigenvalue...

Word Count : 8344

Domain decomposition methods

Last Update:

space iterative methods, such as the conjugate gradient method, GMRES, and LOBPCG. In overlapping domain decomposition methods, the subdomains overlap by...

Word Count : 865

Timeline of algorithms

Last Update:

decentralized peer-to-peer file distribution system is published 2001 – LOBPCG Locally Optimal Block Preconditioned Conjugate Gradient method finding extreme...

Word Count : 2097

SLEPc

Last Update:

Generalized Davidson and Jacobi-Davidson. Conjugate gradient methods such as LOBPCG. A contour integral solver (CISS). Interface to some external eigensolvers...

Word Count : 421

PDF Search Engine © AllGlobal.net