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Results tagged with eigenvalues
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user 109500
For questions involving calculation or interpretation of eigenvalues or eigenvectors.
17
votes
1
answer
7k
views
What is principal subspace in probabilistic PCA?
if $X$ is observed data matrix and $Y$ is latent variable then
$$X=WY+\mu+\epsilon$$
Where $\mu$ is the mean of observed data, and $\epsilon$ is the Gaussian error/noise in data, and $W$ is called …
- 603
1
vote
1
answer
1k
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What is the fastest way to calculate the leading singular value of a very large matrix (10ml...
I only know of the following power iteration. But it needs to create a huge matrix A'*A when both of rows and columns are pretty large. And A is a dense matrix as well. Is there any alternative to pow …
- 603