org.apache.ctakes.relationextractor.ae.features

Class PrepositionFeatureExtractor

java.lang.Object

org.apache.ctakes.relationextractor.ae.features.PrepositionFeatureExtractor

All Implemented Interfaces:

RelationFeaturesExtractor<IdentifiedAnnotation,IdentifiedAnnotation>

public class PrepositionFeatureExtractor
extends Object
implements RelationFeaturesExtractor<IdentifiedAnnotation,IdentifiedAnnotation>

Features that indicate whether there is a preposition between the two arguments. Uses a predifined list of prepositions rather than POS tags.

Constructor Summary

Constructors

Constructor and Description
PrepositionFeatureExtractor()

Method Summary

Modifier and Type	Method and Description
List<org.cleartk.ml.Feature>	extract(org.apache.uima.jcas.JCas jCas, IdentifiedAnnotation arg1, IdentifiedAnnotation arg2) Extract features for the pair of named entity mentions.

Methods inherited from class java.lang.Object

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

Constructor Detail

PrepositionFeatureExtractor

public PrepositionFeatureExtractor()

Method Detail

extract

public List<org.cleartk.ml.Feature> extract(org.apache.uima.jcas.JCas jCas,
                                            IdentifiedAnnotation arg1,
                                            IdentifiedAnnotation arg2)
                                     throws org.apache.uima.analysis_engine.AnalysisEngineProcessException

Description copied from interface: RelationFeaturesExtractor

Extract features for the pair of named entity mentions.

Specified by:

extract in interface RelationFeaturesExtractor<IdentifiedAnnotation,IdentifiedAnnotation>

Parameters:

jCas - The JCas containing the two named entity mentions.

arg1 - The first identified annotation in the text.

arg2 - The second identified annotation in the text.

Returns:

A list of features indicative of the relation between the named entities

Throws:

org.apache.uima.analysis_engine.AnalysisEngineProcessException