MurmurHash 3.0 -------------- Key: MAHOUT-862 URL: https://issues.apache.org/jira/browse/MAHOUT-862 Project: Mahout Issue Type: Improvement Reporter: Grant Ingersoll Assignee: Grant Ingersoll Priority: Minor
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: {quote} (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. {quote} See also http://code.google.com/p/smhasher/ We should add support for it and hook into MinHash -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira