gov.llnl.ontology.mains
Class ExtendWordNet

java.lang.Object
  gov.llnl.ontology.mains.ExtendWordNet

public class ExtendWordNet
extends Object

Author:

Keith Stevens

Nested Class Summary

class	ExtendWordNet.ClassScores An internal struct class that maintains the of two words having a hypernym relationship and a cousin relationship within the wordnet hierarchy based on word co-occurrence information.
class	ExtendWordNet.Evidence A data struct for recording the co-occurrence information between two words and any class labels for the two words.

Constructor Summary

ExtendWordNet(OntologyReader wordnet, edu.ucla.sspace.dependency.DependencyExtractor extractor, edu.ucla.sspace.dv.DependencyPathBasisMapping basis, edu.ucla.sspace.dependency.DependencyTreeTransform transformer, WordNetBuilder wordnetBuilder, int numSimilarityScores)
Constructs a new ExtendWordNet instance.

Method Summary

void	applySimilarityScores(int sspaceNum, edu.ucla.sspace.common.SemanticSpace sspace) Applies similarity scores for each of the word pairs in the evidence maps.
void	extendWordNet(OntologyReader wordnet)
void	gatherEvidence(BufferedReader document, Set<String> wordList) Iterates through the DependencyPath found in the dependency trees found in document.
void	labelUnknownEvidence() Compute the hypernym and cousin probabilities for each unknown noun pair.
static void	main(String[] args)
boolean	trainModel(int numPasses) Trains the hypernym and cousin predictor models based on the evidence gathered for positive and negative relationships.

Methods inherited from class java.lang.Object

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

Constructor Detail

ExtendWordNet

public ExtendWordNet(OntologyReader wordnet,
                     edu.ucla.sspace.dependency.DependencyExtractor extractor,
                     edu.ucla.sspace.dv.DependencyPathBasisMapping basis,
                     edu.ucla.sspace.dependency.DependencyTreeTransform transformer,
                     WordNetBuilder wordnetBuilder,
                     int numSimilarityScores)

Constructs a new ExtendWordNet instance.

Method Detail

main

public static void main(String[] args)
                 throws Exception

Throws:

Exception

labelUnknownEvidence

public void labelUnknownEvidence()

Compute the hypernym and cousin probabilities for each unknown noun pair.

extendWordNet

public void extendWordNet(OntologyReader wordnet)

applySimilarityScores

public void applySimilarityScores(int sspaceNum,
                                  edu.ucla.sspace.common.SemanticSpace sspace)

Applies similarity scores for each of the word pairs in the evidence maps.

trainModel

public boolean trainModel(int numPasses)

Trains the hypernym and cousin predictor models based on the evidence gathered for positive and negative relationships. Returns true if both models could be trained.

gatherEvidence

public void gatherEvidence(BufferedReader document,
                           Set<String> wordList)

Iterates through the DependencyPath found in the dependency trees found in document. For any two nouns that are connected by some DependencyPath, the shortest path connecting these two nouns will be used as evidence.