com.hankcs.hanlp.summary

Class BM25

java.lang.Object

com.hankcs.hanlp.summary.BM25

public class BM25
extends Object

搜索相关性评分算法

Author:

hankcs

Constructor Summary

Constructors

Constructor and Description
BM25(List<List<String>> docs)

Method Summary

Modifier and Type	Method and Description
double	sim(List<String> sentence, int index) 计算一个句子与一个文档的BM25相似度
double[]	simAll(List<String> sentence)

Methods inherited from class java.lang.Object

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

Constructor Detail

BM25

public BM25(List<List<String>> docs)

Method Detail

sim

public double sim(List<String> sentence,
                  int index)

计算一个句子与一个文档的BM25相似度

Parameters:

sentence - 句子（查询语句）

index - 文档（用语料库中的下标表示）

Returns:

BM25 score

simAll

public double[] simAll(List<String> sentence)