Uses of Class
org.terrier.structures.CollectionStatistics

Packages that use CollectionStatistics

org.terrier.matching	Provides the classes and interfaces used for matching documents to queries.
org.terrier.matching.dsms	Provides the interface and the classes for modifying the scores of documents after an score has been assigned to documents, or implementing the combination of evidence.
org.terrier.matching.models	Provides the classes that implement various weighting models.
org.terrier.querying	Provides the interfaces and classes for the querying API of the Terrier platform, the controls, post processors and filters.
org.terrier.structures	Provides the classes that implement the data structures used for retrieval with the Terrier platform.

Uses of CollectionStatistics in org.terrier.matching

Fields in org.terrier.matching declared as CollectionStatistics

protected CollectionStatistics	PostingListManager.collectionStatistics statistics of the collection
protected CollectionStatistics	OldBasicMatching.collectionStatistics The collection statistics
protected CollectionStatistics	BaseMatching.collectionStatistics The collection statistics
protected CollectionStatistics	TRECResultsMatching.collStats The underlying collections statistics.

Methods in org.terrier.matching that return CollectionStatistics

CollectionStatistics

TRECResultsMatching.getCollectionStatistics() Returns collection statistics.

Methods in org.terrier.matching with parameters of type CollectionStatistics

void	TRECResultsMatching.setCollectionStatistics(CollectionStatistics _collStats)
void	OldBasicMatching.setCollectionStatistics(CollectionStatistics cs) Set the collection statistics.
void	Matching.setCollectionStatistics(CollectionStatistics cs) Update the collection statistics being used by this matching instance
void	BaseMatching.setCollectionStatistics(CollectionStatistics cs) Update the collection statistics being used by this matching instance

Constructors in org.terrier.matching with parameters of type CollectionStatistics

PostingListManager(Index _index, CollectionStatistics cs)
Create a posting list manager for the given index and statistics

PostingListManager(Index _index, CollectionStatistics _cs, MatchingQueryTerms mqt)
Create a posting list manager for the given index and statistics, and populated using the specified MatchingQueryTerms.

PostingListManager(Index _index, CollectionStatistics _cs, MatchingQueryTerms mqt, boolean splitSynonyms)
Create a posting list manager for the given index and statistics, and populated using the specified MatchingQueryTerms.

Uses of CollectionStatistics in org.terrier.matching.dsms

Methods in org.terrier.matching.dsms with parameters of type CollectionStatistics

void	MRFDependenceScoreModifier.setCollectionStatistics(CollectionStatistics cs, Index _index) Sets the collection statistics used to score the documents (number of documents in the collection, etc)
void	DependenceScoreModifier.setCollectionStatistics(CollectionStatistics cs, Index _index) Sets the collection statistics used to score the documents (number of documents in the collection, etc)

Uses of CollectionStatistics in org.terrier.matching.models

Fields in org.terrier.matching.models declared as CollectionStatistics

protected CollectionStatistics

WeightingModel.cs

Methods in org.terrier.matching.models with parameters of type CollectionStatistics

void	WeightingModel.setCollectionStatistics(CollectionStatistics _cs) Sets collection statistics
void	PerFieldNormWeightingModel.setCollectionStatistics(CollectionStatistics _cs)
void	ML2.setCollectionStatistics(CollectionStatistics _cs)
void	MDL2.setCollectionStatistics(CollectionStatistics _cs)
void	DFRWeightingModel.setCollectionStatistics(CollectionStatistics _cs)

Uses of CollectionStatistics in org.terrier.querying

Fields in org.terrier.querying declared as CollectionStatistics

protected CollectionStatistics

QueryExpansion.collStats The statistics of the index

Constructors in org.terrier.querying with parameters of type CollectionStatistics

DFRBagExpansionTerms(CollectionStatistics collStats, Lexicon<String> _lexicon, PostingIndex<Pointer> _directIndex, DocumentIndex _documentIndex)
Constructs an instance of ExpansionTerms.

Uses of CollectionStatistics in org.terrier.structures

Subclasses of CollectionStatistics in org.terrier.structures

protected class

Index.UpdatingCollectionStatistics This collection statistics parses the associated index properties for each call.

Methods in org.terrier.structures that return CollectionStatistics

CollectionStatistics

Index.getCollectionStatistics() Get the collection statistics

Methods in org.terrier.structures with parameters of type CollectionStatistics

void	CollectionStatistics.addStatistics(CollectionStatistics cs) Increment the statistics by the specified amount