Terrier IR Platform
2.2.1

Uses of Class
uk.ac.gla.terrier.matching.models.queryexpansion.QueryExpansionModel

Packages that use QueryExpansionModel
uk.ac.gla.terrier.matching.models.queryexpansion Provides the classes that implement various query expansion models. 
uk.ac.gla.terrier.querying Provides the interfaces and classes for the querying API of the Terrier platform, the controls, post processors and filters. 
uk.ac.gla.terrier.structures Provides the classes that implement the data structures used for retrieval with the Terrier platform. 
 

Uses of QueryExpansionModel in uk.ac.gla.terrier.matching.models.queryexpansion
 

Subclasses of QueryExpansionModel in uk.ac.gla.terrier.matching.models.queryexpansion
 class Bo1
          This class implements the Bo1 model for query expansion.
 class Bo2
          This class implements the Bo2 model for query expansion.
 class KL
          This class implements the Kullback-Leibler divergence for query expansion.
 

Uses of QueryExpansionModel in uk.ac.gla.terrier.querying
 

Methods in uk.ac.gla.terrier.querying that return QueryExpansionModel
 QueryExpansionModel QueryExpansion.getQueryExpansionModel(java.lang.String Name)
          Obtain the query expansion model for QE to use.
 

Methods in uk.ac.gla.terrier.querying with parameters of type QueryExpansionModel
 void QueryExpansion.setQueryExpansionModel(QueryExpansionModel QEModel)
          Set the used query expansion model.
 

Uses of QueryExpansionModel in uk.ac.gla.terrier.structures
 

Methods in uk.ac.gla.terrier.structures with parameters of type QueryExpansionModel
 void ExpansionTerms.assignWeights(QueryExpansionModel QEModel)
          Assign weight to terms that are stored in ExpansionTerm[] terms.
 SingleTermQuery[] ExpansionTerms.getExpandedTerms(int numberOfExpandedTerms, QueryExpansionModel QEModel)
          This method implements the functionality of assigning expansion weights to the terms in the top-retrieved documents, and returns the most informative terms among them.
 double ExpansionTerms.getExpansionWeight(int termId, QueryExpansionModel model)
          Returns the weight of a term with the given term identifier, computed by the specified query expansion model.
 double ExpansionTerms.getExpansionWeight(java.lang.String term, QueryExpansionModel model)
          Returns the weight of a given term, computed by the specified query expansion model.
 


Terrier IR Platform
2.2.1

Terrier Information Retrieval Platform 2.2.1. Copyright 2004-2008 University of Glasgow