Package org.terrier.matching.models.queryexpansion

Provides the classes that implement various query expansion models.

See:
          Description

Class Summary
Bo1 This class implements the Bo1 model for query expansion.
Bo2 This class implements the Bo2 model for query expansion.
CS This class implements the chi-square divergence for query expansion.
CSCorrect This class implements the unsimplified chi-square divergence for query expansion.
Information This class implements the Kullback-Leibler divergence for query expansion.
KL This class implements the Kullback-Leibler divergence for query expansion.
KLComplete This class implements the complete Kullback-Leibler divergence for query expansion.
KLCorrect This class implements the correct Kullback-Leibler divergence for query expansion, which takes the contribution into consideration.
QueryExpansionModel This class should be extended by the classes used for weighting terms and documents.
QueryExpansionModelFactory A factory method for handling the initialisation of expansion models.
 

Package org.terrier.matching.models.queryexpansion Description

Provides the classes that implement various query expansion models.



Terrier 3.5. Copyright © 2004-2011 University of Glasgow