org.apache.ctakes.temporal.ae.feature

Class RelationSyntacticEmbeddingFeatureExtractor

java.lang.Object

org.apache.ctakes.temporal.ae.feature.RelationSyntacticEmbeddingFeatureExtractor

All Implemented Interfaces:

RelationFeaturesExtractor<IdentifiedAnnotation,IdentifiedAnnotation>

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

Word embedding based features.

Constructor Summary

Constructors

Constructor and Description
RelationSyntacticEmbeddingFeatureExtractor(String vecFile)

Method Summary

Modifier and Type	Method and Description
List<Double>	addVectors(List<Double> vector1, WordVector vector2) Add two vectors.
double	computeCosineSimilarity(List<Double> vector1, List<Double> vector2)
double	computeCosineSimilarity(WordVector vector1, WordVector vector2) Compute cosine similarity between two vectors.
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

RelationSyntacticEmbeddingFeatureExtractor

public RelationSyntacticEmbeddingFeatureExtractor(String vecFile)
                                           throws org.cleartk.ml.feature.extractor.CleartkExtractorException

Throws:

org.cleartk.ml.feature.extractor.CleartkExtractorException

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

computeCosineSimilarity

public double computeCosineSimilarity(WordVector vector1,
                                      WordVector vector2)

Compute cosine similarity between two vectors.

computeCosineSimilarity

public double computeCosineSimilarity(List<Double> vector1,
                                      List<Double> vector2)

addVectors

public List<Double> addVectors(List<Double> vector1,
                               WordVector vector2)

Add two vectors. Return the sum vector.