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Thread: Calgary Corpus Challenge (my result)

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    Member Shockwave's Avatar
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    Calgary Corpus Challenge (my result)

    Good afternoon! For several months I tried to work with the PAQ algorithm.

    From the information on Wikipedia I know that the last public result was from Alexander Rhatushnyak: (580,170 - 07/2010 - Alexander Rhatushnyak), I managed to reduce the original set of files to 571,845 bytes.
    I would like to know how you think this result is suitable for this challenge (it seemed to me that yes, because it was published that you won up to tens of thousands of bytes).

    Thx!
    Last edited by Shockwave; 2nd February 2020 at 22:56. Reason: Spelling

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    Administrator Shelwien's Avatar
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    That contest doesn't have any prizes anymore.

    But http://mattmahoney.net/dc/calgary.html
    Says "Send your submission to Matt Mahoney at mattmahoneyfl at gmail.com. If accepted, I will post it and add your name to the leaderboard."

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    Administrator Shelwien's Avatar
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    > I managed to reduce the original set of files to 571,845 bytes.

    I looked again, and the wording of Matt's version is kinda unclear.
    The original is more like this: "an executable and possibly other files, where the said executable file,
    [...] run once without arguments [...] on a computer with no permanent storage or
    communication devices accessible to the running process(es) produces 14 files of calgary corpus."

    So if that's not a total size with unpacker (possibly compressed with common methods; possibly unpacker source), then you don't win anything.

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