Universality for Eigenvalue Algorithms on Sample Covariance Matrices
Universality for Eigenvalue Algorithms on Sample Covariance Matrices
复制标题
样本协方差矩阵特征值算法的普适性
DOI:
10.1137/17m1110900
复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
T. Trogdon
中科院分区:
文献类型:
--
作者:
P. Deift;T. Trogdon
We prove a universal limit theorem for the halting time, or iteration count, of the power/inverse power methods and the QR eigenvalue algorithm. Specifically, we analyze the required number of iterations to compute extreme eigenvalues of random, positive definite sample covariance matrices to within a prescribed tolerance. The universality theorem provides a complexity estimate for the algorithms which, in this random setting, holds with high probability. The method of proof relies on recent results on the statistics of the eigenvalues and eigenvectors of random sample covariance matrices (i.e., delocalization, rigidity, and edge universality).
影响因子:
3
作者:
Deift, Percy;Trogdon, Thomas
通讯作者:
Trogdon, Thomas