10 search results - page 1 / 2 » Some Gradient Based Joint Diagonalization Methods for ICA |
ICA
2004
Springer
13 years 10 months ago
2004
Springer
Abstract. We present a set of gradient based orthogonal and nonorthogonal matrix joint diagonalization algorithms. Our approach is to use the geometry of matrix Lie groups to devel...
ICA
2007
Springer
13 years 11 months ago
2007
Springer
This paper introduces an extension of an earlier method of the author for separating stationary sources, based on the joint approximated diagonalization of interspectral matrices, ...
ICA
2004
Springer
13 years 10 months ago
2004
Springer
We present a new algorithm for non-unitary approximate joint diagonalization (AJD), based on a “natural gradient”-type multiplicative update of the diagonalizing matrix, comple...
IDA
2009
Springer
13 years 11 months ago
2009
Springer
Abstract. Joint diagonalization for ICA is often performed on the orthogonal group after a pre-whitening step. Here we assume that we only want to extract a few sources after pre-w...
ICA
2004
Springer
13 years 10 months ago
2004
Springer
We address the blind source separation (BSS) problem for the convolutive mixing case. Second-order statistical methods are employed assuming the source signals are non-stationary a...