FeatureIndex (HanLP portable-1.8.1 API)

java.lang.Object
- com.hankcs.hanlp.model.crf.crfpp.FeatureIndex

Direct Known Subclasses:

DecoderFeatureIndex, EncoderFeatureIndex
```
public abstract class FeatureIndex
extends Object
```
Author:

zhifac

Field Summary

Fields
Modifier and Type	Field and Description
`protected double[]`	`alpha_`
`protected float[]`	`alphaFloat_`
`protected List<String>`	`bigramTempls_`
`static String[]`	`BOS`
`protected boolean`	`checkMaxXsize_`
`protected double`	`costFactor_`
`static String[]`	`EOS`
`protected int`	`max_xsize_`
`protected int`	`maxid_`
`protected List<List<Node>>`	`nodeList_`
`protected List<List<Path>>`	`pathList_`
`protected String`	`templs_`
`protected int`	`threadNum_`
`protected List<String>`	`unigramTempls_`
`protected int`	`xsize_`
`protected List<String>`	`y_`

Constructor Summary

Constructors
Constructor and Description

FeatureIndex()

Constructors
Constructor and Description
`FeatureIndex()`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`String`	`applyRule(String str, int cur, TaggerImpl tagger)`
`boolean`	`buildFeatures(TaggerImpl tagger)`
`void`	`calcCost(Node node)` 计算状态特征函数的代价
`void`	`calcCost(Path path)` 计算转移特征函数的代价
`void`	`clear()`
`double[]`	`getAlpha_()`
`float[]`	`getAlphaFloat_()`
`List<String>`	`getBigramTempls_()`
`double`	`getCostFactor_()`
`protected abstract int`	`getID(String s)`
`String`	`getIndex(String[] idxStr, int cur, TaggerImpl tagger)`
`int`	`getMax_xsize_()`
`int`	`getMaxid_()`
`List<List<Node>>`	`getNodeList_()`
`List<List<Path>>`	`getPathList_()`
`String`	`getTemplate()`
`int`	`getThreadNum_()`
`List<String>`	`getUnigramTempls_()`
`int`	`getXsize_()`
`List<String>`	`getY_()`
`String`	`makeTempls(List<String> unigramTempls, List<String> bigramTempls)`
`boolean`	`open(InputStream stream)`
`boolean`	`open(String file)`
`void`	`rebuildFeatures(TaggerImpl tagger)`
`void`	`setAlpha_(double[] alpha_)`
`void`	`setAlphaFloat_(float[] alphaFloat_)`
`void`	`setBigramTempls_(List<String> bigramTempls_)`
`void`	`setCostFactor_(double costFactor_)`
`void`	`setMax_xsize_(int max_xsize_)`
`void`	`setMaxid_(int maxid_)`
`void`	`setNodeList_(List<List<Node>> nodeList_)`
`void`	`setPathList_(List<List<Path>> pathList_)`
`void`	`setThreadNum_(int threadNum_)`
`void`	`setUnigramTempls_(List<String> unigramTempls_)`
`void`	`setXsize_(int xsize_)`
`void`	`setY_(List<String> y_)`
`int`	`size()`
`int`	`ysize()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

BOS
```
public static String[] BOS
```

EOS
```
public static String[] EOS
```

maxid_
```
protected int maxid_
```

alpha_
```
protected double[] alpha_
```

alphaFloat_
```
protected float[] alphaFloat_
```

costFactor_
```
protected double costFactor_
```

xsize_
```
protected int xsize_
```

checkMaxXsize_
```
protected boolean checkMaxXsize_
```

max_xsize_
```
protected int max_xsize_
```

threadNum_
```
protected int threadNum_
```

unigramTempls_
```
protected List<String> unigramTempls_
```

bigramTempls_
```
protected List<String> bigramTempls_
```

templs_
```
protected String templs_
```

y_
```
protected List<String> y_
```

pathList_
```
protected List<List<Path>> pathList_
```

nodeList_
```
protected List<List<Node>> nodeList_
```

Constructor Detail
- FeatureIndex
```
public FeatureIndex()
```

Method Detail

getID

protected abstract int getID(String s)

calcCost
```
public void calcCost(Node node)
```
计算状态特征函数的代价

Parameters:

node -

calcCost
```
public void calcCost(Path path)
```
计算转移特征函数的代价

Parameters:

path - 边

makeTempls

public String makeTempls(List<String> unigramTempls,
                         List<String> bigramTempls)

getTemplate
```
public String getTemplate()
```

getIndex

public String getIndex(String[] idxStr,
                       int cur,
                       TaggerImpl tagger)

applyRule

public String applyRule(String str,
                        int cur,
                        TaggerImpl tagger)

buildFeatures

public boolean buildFeatures(TaggerImpl tagger)

rebuildFeatures

public void rebuildFeatures(TaggerImpl tagger)

open
```
public boolean open(String file)
```

open

public boolean open(InputStream stream)

clear
```
public void clear()
```

size
```
public int size()
```

ysize
```
public int ysize()
```

getMaxid_
```
public int getMaxid_()
```

setMaxid_
```
public void setMaxid_(int maxid_)
```

getAlpha_
```
public double[] getAlpha_()
```

setAlpha_

public void setAlpha_(double[] alpha_)

getAlphaFloat_
```
public float[] getAlphaFloat_()
```

setAlphaFloat_

public void setAlphaFloat_(float[] alphaFloat_)

getCostFactor_
```
public double getCostFactor_()
```

setCostFactor_

public void setCostFactor_(double costFactor_)

getXsize_
```
public int getXsize_()
```

setXsize_
```
public void setXsize_(int xsize_)
```

getMax_xsize_
```
public int getMax_xsize_()
```

setMax_xsize_

public void setMax_xsize_(int max_xsize_)

getThreadNum_
```
public int getThreadNum_()
```

setThreadNum_

public void setThreadNum_(int threadNum_)

getUnigramTempls_

public List<String> getUnigramTempls_()

setUnigramTempls_

public void setUnigramTempls_(List<String> unigramTempls_)

getBigramTempls_

public List<String> getBigramTempls_()

setBigramTempls_

public void setBigramTempls_(List<String> bigramTempls_)

getY_
```
public List<String> getY_()
```

setY_
```
public void setY_(List<String> y_)
```

getPathList_

public List<List<Path>> getPathList_()

setPathList_

public void setPathList_(List<List<Path>> pathList_)

getNodeList_

public List<List<Node>> getNodeList_()

setNodeList_

public void setNodeList_(List<List<Node>> nodeList_)

Class FeatureIndex

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

BOS

EOS

maxid_

alpha_

alphaFloat_

costFactor_

xsize_

checkMaxXsize_

max_xsize_

threadNum_

unigramTempls_

bigramTempls_

templs_

y_

pathList_

nodeList_

Constructor Detail

FeatureIndex

Method Detail

getID

calcCost

calcCost

makeTempls

getTemplate

getIndex

applyRule

buildFeatures

rebuildFeatures

open

open

clear

size

ysize

getMaxid_

setMaxid_

getAlpha_

setAlpha_

getAlphaFloat_

setAlphaFloat_

getCostFactor_

setCostFactor_

getXsize_

setXsize_

getMax_xsize_

setMax_xsize_

getThreadNum_

setThreadNum_

getUnigramTempls_

setUnigramTempls_

getBigramTempls_

setBigramTempls_

getY_

setY_

getPathList_

setPathList_

getNodeList_

setNodeList_