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专门针对中文文档的simhash算法库

Introduction

此项目用来对中文文档计算出对于的simhash值。simhash是谷歌用来进行文本去重的算法，现在广泛应用在文本处理中。

详见SimhashBlog

Feature

• use CppJieba as Chinese Word Segmentor and Keyword Extractor.
• use jenkins as hash function.
• written by hpp stype. In other words , all useful codes are in header files. You can use them only by include them. No Linking , No hurts.

Dependency

• g++ (version >= 4.1 recommended), or clang++ .

Usage

mkdir build
cd build
cmake ..
make

Demo

./bin/simhash.demo

you will see:

文本："我是蓝翔技工拖拉机学院手扶拖拉机专业的。不用多久，我就会升职加薪，当上总经理，出任CEO，走上人生巅峰。"
关键词序列是: ["蓝翔:11.7392", "CEO:11.7392", "升职:10.8562", "加薪:10.6426", "手扶拖拉机:10.0089"]
simhash值是: 17831459094038722629
100010110110和110001110011 simhash值的相等判断如下：
海明距离阈值默认设置为3，则isEqual结果为：0
海明距离阈值默认设置为5，则isEqual结果为：1

See details in src/main.cpp.

Contact

[email protected]