SimHash implementation in Java?

Has anyone come across a simha开发者_运维百科sh function implemented in Java?

I've already searched for it, but couldn't find anything.

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btw. It looks like Google has patented the algorithm. If you are in US, successfully compete with Google, and do not have own parent portfolio, then do not tell them you are using it.

An implementation in C

http://dsrg.mff.cuni.cz/~holub/sw/shash/

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Here you can find the full java source code. It's very simple. A demo also is provided. http://aneurone.blogspot.com/2012/09/simhash.html

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