Updating the inverse of a matrix Free testversion privat live sex chat


29-Aug-2016 22:20

For instance my hunch is that someone has to have an algorithm to update his eigenfaces' entries on-line.These guys work with dense matrix representations..I would argue that we should try to make the information provided on this site as self-sustained as possible.Indeed, almost all the information contained here is in some sense duplicating existing textbooks, online resources, or research papers).These methods typically involve iterated training of a classifier after substitutions or modifications of features.Therefore, we derive an efficient incremental update formula for LDA discriminant functions for the substitution of features.Unfortunately I have not come across any R implementations for rank-one updates routines.

1 to both you and @whuber (and I don't think that "duplicating" any information provided on another SE site is to be avoided!

\end Question: I'm wondering whether we have a similar formula when the inverse in the Sherman-Morrison formula is replaced by the Moore-Penrose Pseudoinverse in case that $\mathbf A$ is singular matrix.



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