de.julielab.jnet.tagger

Class FeatureConfiguration

java.lang.Object

de.julielab.jnet.tagger.FeatureConfiguration

public class FeatureConfiguration
extends Object

Constructor Summary

Constructors

Constructor and Description
FeatureConfiguration()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	featureActive(Properties propDef, String propName) check whether a boolean feature exists and is set to "true"
int[]	getIntArray(Properties propDef, String propName)
ArrayList<String>	getLexiconKeys(Properties propDef)
String[]	getStringArray(Properties propDef, String propName) Gets the value of a property, splitting it into Strings
String[]	getTrueMetas(Properties featureConfig) The Properties Object featureConfig contains key-value pairs.
int[][]	offsetConjFromConfig(String offset_conjunctions) extracts the offset conjunction information (feature creation horizon) from a String of the form (-1) (0) (1), (-1) (0) (1,2) or (-1) (0) (1 2)

Methods inherited from class java.lang.Object

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

Constructor Detail

FeatureConfiguration

public FeatureConfiguration()

Method Detail

featureActive

public boolean featureActive(Properties propDef,
                    String propName)

check whether a boolean feature exists and is set to "true"

Parameters:

propDef -

propName -

Returns:

getIntArray

public int[] getIntArray(Properties propDef,
                String propName)

offsetConjFromConfig

public int[][] offsetConjFromConfig(String offset_conjunctions)

extracts the offset conjunction information (feature creation horizon) from a String of the form (-1) (0) (1), (-1) (0) (1,2) or (-1) (0) (1 2)

getLexiconKeys

public ArrayList<String> getLexiconKeys(Properties propDef)

getTrueMetas

public String[] getTrueMetas(Properties featureConfig)

The Properties Object featureConfig contains key-value pairs. Some of these pairs correspond to information about meta datas. This method returns a list of the used meta datas by searching for pairs of the form "xxx_feat_enabled = true". It then adds the "xxx" to the list. For "pos_feat_enabled = true" it will add pos to the list. For "chunk_feat_enabled = false" it will do nothing.

getStringArray

public String[] getStringArray(Properties propDef,
                      String propName)

Gets the value of a property, splitting it into Strings

Parameters:

propDef - Property file to parse

propName - Property key to extract values for

Returns:

String[], containing the value split at "," or null, if not found