Monthly Archives: July 2011

Nystrom extension Matlab code

In many problems of clustering and applied mathematics one often needs to find the top eigenvectors of a square matrix. This is not a problem if the matrix W is not too big, say few thousands or tens of thousands … Continue reading

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Reading between the lines

  To read between lines at least two lines are necessary. // Vlad  

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How to reset Master Password under Mac (knowing admin password!)

What can happen … happens. You set up all possible locks in the beginning and then successfully forget about some of them. This happened to me with Master Password. I set it up once and then one day realized that … Continue reading

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Get some info about a video file in a command-line

Yet another nugget from *nix world : how to get some basic information about a video file under Linux? My first try was to : file video.mp4 but it returned some stats like : video.mp4: ISO Media, MPEG v4 system, … Continue reading

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