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.