com.hankcs.hanlp.model.crf.crfpp

Class Encoder

java.lang.Object

com.hankcs.hanlp.model.crf.crfpp.Encoder

public class Encoder
extends Object

训练入口

Author:

zhifac

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Encoder.Algorithm

Field Summary

Fields

Modifier and Type	Field and Description
static int	MODEL_VERSION

Constructor Summary

Constructors

Constructor and Description
Encoder()

Method Summary

Modifier and Type	Method and Description
boolean	learn(String templFile, String trainFile, String modelFile, boolean textModelFile, int maxitr, int freq, double eta, double C, int threadNum, int shrinkingSize, Encoder.Algorithm algorithm) 训练
static void	main(String[] args)
boolean	runMIRA(List<TaggerImpl> x, EncoderFeatureIndex featureIndex, double[] alpha, int maxItr, double C, double eta, int shrinkingSize, int threadNum)

Methods inherited from class java.lang.Object

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

Field Detail

MODEL_VERSION

public static int MODEL_VERSION

Constructor Detail

Encoder

public Encoder()

Method Detail

learn

public boolean learn(String templFile,
                     String trainFile,
                     String modelFile,
                     boolean textModelFile,
                     int maxitr,
                     int freq,
                     double eta,
                     double C,
                     int threadNum,
                     int shrinkingSize,
                     Encoder.Algorithm algorithm)

训练

Parameters:

templFile - 模板文件

trainFile - 训练文件

modelFile - 模型文件

textModelFile - 是否输出文本形式的模型文件

maxitr - 最大迭代次数

freq - 特征最低频次

eta - 收敛阈值

C - cost-factor

threadNum - 线程数

shrinkingSize -

algorithm - 训练算法

Returns:

runMIRA

public boolean runMIRA(List<TaggerImpl> x,
                       EncoderFeatureIndex featureIndex,
                       double[] alpha,
                       int maxItr,
                       double C,
                       double eta,
                       int shrinkingSize,
                       int threadNum)

main

public static void main(String[] args)