Doug's MATLAB Video Tutorials

January 29th, 2010

Advanced: Speeding up an enumerated string search in a data mining application

 This week, I am going to cover a technique that I used to speed up a data mining application that had a search through enumerated strings looking for all the matches. Using this technique of substituting numeric values for the strings, I was able to see a twenty fold speed increase.
Also, my colleague Scott thought that people interested in this video should check out categorical arrays in the statistics toolbox.

By Doug Hull

20:12 UTC | Posted in Format: Video, Level: Advanced, Topic: Practical example | Permalink | 3 Comments »

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3 Responses to “Advanced: Speeding up an enumerated string search in a data mining application”

  1. sja replied on February 1st, 2010 at 03:17 UTC :

    Thanks, would be great with more of this type of tricks.

  2. Claus replied on February 1st, 2010 at 15:57 UTC :

    LOVE the tricks. Even stuff that you think is mundane may be a revelation to us

    Thanks,

    Claus
    Cambridge, Mass
    Stats, Optim, Finance tool boxes

  3. dhull replied on February 1st, 2010 at 16:02 UTC :

    @Claus,

    Glad to hear the kind words. I was doing this data mining project for a totally different reason and thought this would be a good example.

    So I know exactly what you are enjoying, what did you take away from this video?

    Doug

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