org.nlpcn.commons.lang.util

Class WordWeight

java.lang.Object

org.nlpcn.commons.lang.util.WordWeight

public class WordWeight
extends Object

计算词语的权重,词频统计等

Author:

ansj

Constructor Summary

Constructors

Constructor and Description
WordWeight()
WordWeight(Integer maxCount, Integer recyclingCount) 新的个数 = maxCount - recyclingCount; recyclingCount< maxCount

Method Summary

Modifier and Type	Method and Description
void	add(String word)
void	add(String word, double weight)
void	add(String word, String target)
void	add(String word, String target, double weight)
Map<String,Double>	export() 导出词频统计结果
HashMap<String,MapCount<String>>	exportChiSquare()
Map<String,Double>	exportIDF() 导出IDF统计结果

Methods inherited from class java.lang.Object

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

Constructor Detail

WordWeight

public WordWeight()

WordWeight

public WordWeight(Integer maxCount,
                  Integer recyclingCount)

新的个数 = maxCount - recyclingCount; recyclingCount< maxCount

Parameters:

maxCount - 最大值,当超过这个值后进行回收

recyclingCount - 回收个数

Method Detail

add

public void add(String word)

add

public void add(String word,
                double weight)

add

public void add(String word,
                String target)

add

public void add(String word,
                String target,
                double weight)

export

public Map<String,Double> export()

导出词频统计结果

Returns:

exportIDF

public Map<String,Double> exportIDF()

导出IDF统计结果

Returns:

exportChiSquare

public HashMap<String,MapCount<String>> exportChiSquare()