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simhash-java's Introduction

simhash-java

A simple implementation of simhash algorithm by java.

Features:

  1. compute the simhash of a string
  2. compute the similarity between all the strings by building smart index, so we can deal with big data.

How to use:

  • run Main with inputfile and outputfile.

  • The format of inputfile(see src/test_in): one doc eachline with the utf8 charset.

  • The format of outputfile(see src/test_out):

  • start //start flag

  • first line // doc

  • sencode lien // doc1\tdist where dist is the hamming distance between doc and doc1

  • end //end flag

Future:

  1. Build the project to a runnable jar.
  2. Improve the performace under big data.

Note:

  1. Before run Main.java, you should choose a better analyzer instead of BinaryWordSeg!

simhash-java's People

Contributors

alexwongdl avatar mgiorgio avatar sarrocks1 avatar sing1ee avatar zmy111111zmy avatar

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simhash-java's Issues

效果太差了!

用得不放心啊,相同的词语,只是变个顺序,simhash的距离居然能到10。

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