Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.6
    • Component/s: None
    • Labels:
      None

      Description

      Yonik has ported an implementation of MurmurHash 3.0 and put it in the public domain: http://www.lucidimagination.com/blog/2011/09/15/murmurhash3-for-java/

      It's a port of https://sites.google.com/site/murmurhash/ which says:

      (I reserve the right to tweak the constants after people have had a chance to bang on it). Murmur3 has better performance than MurmurHash2, no repetition flaw, comes in 32/64/128-bit versions for both x86 and x64 platforms, and the 128-bit x64 version is blazing fast - over 5 gigabytes per second on my 3 gigahertz Core 2.

      In addition, the library of test code that I use to test MurmurHash (called SMHasher) has been released - it's still rough (and will only compile under VC++ at the moment), but it contains everything needed to verify hash functions of arbitrary output bit-lengths.

      Murmur3 and all future versions will be hosted on Google Code here - http://code.google.com/p/smhasher/ - you can access the codebase via the 'Source' tab at the top.

      See also http://code.google.com/p/smhasher/

      We should add support for it and hook into MinHash

        Attachments

        1. MAHOUT-862.patch
          5 kB
          Grant Ingersoll

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            • Assignee:
              gsingers Grant Ingersoll
              Reporter:
              gsingers Grant Ingersoll
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              • Created:
                Updated:
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