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Monthly Archives: May 2009

quick MacOS VNC and Subversion fixes

Thursday, May 21, 2009

Just a quick couple of notes in this post. Two problems sucked a few hours of time this week, so it seems reasonable that they get pushed somewhere more visible for those with the best of Google-fu… connecting to a Mac VNC server from Linux and a weird “authorization failed” bug/oddity in subversion. Connecting to [...]

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matrix multiplication in mySQL

Friday, May 1, 2009

Background For a while now, there has been a need in a project of mine to perform a large-scale matrix multiplication. Here, large-scale involves the multiplication of a 2000×2000 square matrix with another matrix containing labels.  A simpler example is projecting a matrix containing a set of class features into a 2-d Cartesian space for [...]

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