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seen Apr 17 '11 at 19:55

let it be!


Apr
16
comment For a covariance matrix, what would be the properties associated with the eigenvectors space of this matrix?
How to set things up? and what would be the U*transpose(U)
Apr
10
comment What is the meaning of the multiplication of matrix which is composed of eigenvectors and the transpose of it?
Yes, matrix A is symmetric, positive, semidefinite
Apr
10
comment What is the meaning of the multiplication of matrix which is composed of eigenvectors and the transpose of it?
@user8268: it is definitely inner product, but I'd like to know the properties of this matrix, I guess it is the projection matrix , it is orthogonal, and if I want to project a new sample vector to this matrix, so to do dimensionality reduction, correct me.
Apr
10
comment What is the meaning of the multiplication of matrix which is composed of eigenvectors and the transpose of it?
Hope I am clear enough now.