Package org.terrier.matching

Provides the classes and interfaces used for matching documents to queries.

See: Description

Interface Summary

Interface	Description
FatResultSet	A result set that encapsulates the postings for terms within the query
Matching	Interface for all Matching implementations.
Model	This interface encapsulates all the common functionality between standard IR models (including DFR models, TF/IDF, BM25 etc), and Language Modelling models (Terrier includes PonteCroft Language Modelling model).
PostingListManager.PostingListManagerPlugin	Interface for plugins to further alter the posting lists managed by the PostingListManager
ResultSet	The interface that defines the functionalities of a result set.

Class Summary

Class	Description
AbstractScoringMatching
AccumulatorResultSet	A result set instance that uses maps internally until initialise() is called
BaseMatching	Performs the matching of documents with a query, by first assigning scores to documents for each query term and modifying these scores with the appropriate modifiers.
CollectionResultSet	This class implements the interface ResultSet and models the set of all documents in the collection.
FatFeaturedScoringMatching	Makes a FeaturedResultSet by applying a list of features.
FatQueryResultSet	An implementation of FatResultSet.
FatResultsMatching	Reads a FatResultSet serialized to disk by WritableOutputFormat.
FatScoringMatching	Scores a FatResultSet into a normal ResultSet for a given weighting model
FatUtils	Various utilities for the dealing with FatResultSets.
FeaturedScoringMatching
FilterMatching
JforestsModelMatching	Applies a Jforests regression tree learned model to a FeaturedResultSet.
LearnedModelMatching	An abstract class for applying a learned model onto a FeaturedResultSet.
LinearModelMatching	Applies a linear learned model to a FeaturedResultSet.
MatchingQueryTerms	Models a query used for matching documents.
MatchingQueryTerms.MatchingTerm
MatchingQueryTerms.QueryTermProperties	The weight and the modifiers associated with a query term.
PostingListManager	The PostingListManager is responsible for opening the appropriate posting lists IterablePosting given the MatchingQueryTerms object.
QueryResultSet	A result set for a given query.
ScoringMatching	Matching implementation that uses a parent Matching instance to get the docids to work with.
TRECResultsMatching	A matching implementation that retrieves results from a TREC result file rather than the current index.

Enum Summary

Enum	Description
TRECResultsMatching.InputFormat	The result set input format.

Package org.terrier.matching Description

Provides the classes and interfaces used for matching documents to queries. It includes the classes that perform the matching by reading information from the inverted index etc., and the classes that model the set of retrieved documents.