Package cn.net.pap.common.datastructure.simHash

Class SimHash

java.lang.Object

cn.net.pap.common.datastructure.simHash.SimHash

public class SimHash
extends Object

Constructor Summary

Constructors

Constructor	Description
SimHash()

Method Summary

Modifier and Type	Method	Description
static BigInteger	computeSimHash(String input)	计算SimHash值
static int	hammingDistance(BigInteger hash1, BigInteger hash2)	计算汉明距离（Hamming Distance），用于比较两个SimHash签名的相似度

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SimHash

public SimHash()

Method Details

computeSimHash

public static BigInteger computeSimHash(String input)

计算SimHash值

Parameters:

input - 输入文本

Returns:

SimHash签名

hammingDistance

public static int hammingDistance(BigInteger hash1,
 BigInteger hash2)

计算汉明距离（Hamming Distance），用于比较两个SimHash签名的相似度

Parameters:

hash1 - SimHash签名1

hash2 - SimHash签名2

Returns:

汉明距离