--(H, [P.sub.R], [P.sub.C]) [left arrow] DA --Permuting the columns of a
sparse matrix:
DAVIS, University of Florida
Sparse Matrix Collection, available online at http://www.cise.ufl.edu/~davis/sparse/, NA Digest, Vol.
In this paper, the
sparse matrix triple compression storage is used for the Frechet derivative matrix, and only nonzero elements in (10), (11), and (12) and their row and column indexes are stored, solving the storage cost deriving from the Frechet derivative matrix in the framework of the inexact Newton method.
(1) Decompose the matrix of subway passenger flow into a low-rank matrix and a
sparse matrix, filter the
sparse matrix decomposed by the improved RPCA, and then acquire the anomaly matrix.
HU, The University of Florida
sparse matrix collection, ACM Trans.
The above stiffness matrices are sparse matrices and the distributions of the matrix elements in the
sparse matrix can be understood through the above expressions.
According to the definition of Gram matrix, Gram matrix is the product of measurement matrix and
sparse matrix. Therefore, the optimal measurement matrix can be directly derived from the optimal Gram matrix.
Currently, researchers propose many optimized methods for the scale-free networks model by using
sparse matrix vector multiplication to construct scale-free networks [16], using the internal weighted average method to calculate the configuration parameters of scale-free networks [17], and using boosting regression algorithm and Bayesian algorithm to construct prior information and establish the scale-free networks based on prior information [18].
To improve the calculation speed, the nuclear system analysis code must be equipped with a faster unsymmetrical
sparse matrix solver for the system equations, which could cost nearly half the time during the total calculation.