se.lth.cs.srl.features

Class SingleFeature

java.lang.Object

se.lth.cs.srl.features.Feature

se.lth.cs.srl.features.SingleFeature

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

AttrFeature, DepSubCatFeature, PathFeature, PositionFeature, QSingleSingleFeature

public abstract class SingleFeature
extends Feature

See Also:

Serialized Form

Field Summary

Fields inherited from class se.lth.cs.srl.features.Feature

includeArgs, indexcounter, indices, name, POSPrefix, predMaxIndex

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	SingleFeature(FeatureName name, boolean includeArgs, boolean usedForPredicateIdentification, String POSPrefix)

Method Summary

Modifier and Type	Method and Description
void	addFeatures(Collection<Integer> indices, Predicate pred, Word arg, Integer offset, boolean allWords)
void	addFeatures(Sentence s, Collection<Integer> indices, int predIndex, int argIndex, Integer offset, boolean allWords)
abstract String	getFeatureString(Predicate pred, Word arg)
abstract String	getFeatureString(Sentence s, int predIndex, int argIndex)
protected void	performFeatureExtraction(Sentence s, boolean allWords) This method works with features that have includeArgs==false.

Methods inherited from class se.lth.cs.srl.features.Feature

addMap, addPOSPrefix, doExtractFeatures, extractFeatures, getMap, getName, indexOf, setDoneWithPredFeatureExtraction, size, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SingleFeature

protected SingleFeature(FeatureName name,
                        boolean includeArgs,
                        boolean usedForPredicateIdentification,
                        String POSPrefix)

Method Detail

addFeatures

public void addFeatures(Sentence s,
                        Collection<Integer> indices,
                        int predIndex,
                        int argIndex,
                        Integer offset,
                        boolean allWords)

Specified by:

addFeatures in class Feature

addFeatures

public void addFeatures(Collection<Integer> indices,
                        Predicate pred,
                        Word arg,
                        Integer offset,
                        boolean allWords)

Specified by:

addFeatures in class Feature

performFeatureExtraction

protected void performFeatureExtraction(Sentence s,
                                        boolean allWords)

This method works with features that have includeArgs==false. It extracts either from all words (if boolean allWords is true), or from the predicates only (if false)

Specified by:

performFeatureExtraction in class Feature

getFeatureString

public abstract String getFeatureString(Sentence s,
                                        int predIndex,
                                        int argIndex)

getFeatureString

public abstract String getFeatureString(Predicate pred,
                                        Word arg)