com.hankcs.hanlp.model.perceptron.instance

Class NERInstance

java.lang.Object

com.hankcs.hanlp.model.perceptron.instance.Instance

com.hankcs.hanlp.model.perceptron.instance.NERInstance

public class NERInstance
extends Instance

Author:

hankcs

Field Summary

Fields inherited from class com.hankcs.hanlp.model.perceptron.instance.Instance

featureMatrix, tagArray

Constructor Summary

Constructors

Constructor and Description
NERInstance(Sentence sentence, FeatureMap featureMap)
NERInstance(String[][] tuples, NERTagSet tagSet, FeatureMap featureMap)
NERInstance(String[] wordArray, String[] posArray, FeatureMap featureMap)
NERInstance(String[] wordArray, String[] posArray, String[] nerArray, NERTagSet tagSet, FeatureMap featureMap)
NERInstance(String segmentedTaggedNERSentence, FeatureMap featureMap)

Method Summary

Modifier and Type	Method and Description
protected int[]	extractFeature(String[] wordArray, String[] posArray, FeatureMap featureMap, int position) 提取特征，override此方法来拓展自己的特征模板

Methods inherited from class com.hankcs.hanlp.model.perceptron.instance.Instance

addFeature, addFeatureThenClear, getFeatureAt, length, size, tags, toFeatureArray

Methods inherited from class java.lang.Object

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

Constructor Detail

NERInstance

public NERInstance(String[] wordArray,
                   String[] posArray,
                   String[] nerArray,
                   NERTagSet tagSet,
                   FeatureMap featureMap)

NERInstance

public NERInstance(String[][] tuples,
                   NERTagSet tagSet,
                   FeatureMap featureMap)

NERInstance

public NERInstance(String[] wordArray,
                   String[] posArray,
                   FeatureMap featureMap)

NERInstance

public NERInstance(String segmentedTaggedNERSentence,
                   FeatureMap featureMap)

NERInstance

public NERInstance(Sentence sentence,
                   FeatureMap featureMap)

Method Detail

extractFeature

protected int[] extractFeature(String[] wordArray,
                               String[] posArray,
                               FeatureMap featureMap,
                               int position)

提取特征，override此方法来拓展自己的特征模板

Parameters:

wordArray - 词语

posArray - 词性

featureMap - 储存特征的结构

position - 当前提取的词语所在的位置

Returns:

特征向量