Uses of Class
org.terrier.structures.CollectionStatistics

Packages that use CollectionStatistics

Package	Description
org.terrier.matching	Provides the classes and interfaces used for matching documents to queries.
org.terrier.matching.daat	Provides classes that implement a document-at-a-time (DAAT) matching strategy.
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.matchops	This package contains matching Operators.
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.realtime.memory	Provides MemoryIndex structures.
org.terrier.realtime.multi	Provides MultiIndex structures.
org.terrier.services.websitesearch	Provides UI access services for the website search demo.
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

Modifier and Type	Field and Description
protected CollectionStatistics	PostingListManager.collectionStatistics statistics of the collection
protected CollectionStatistics	BaseMatching.collectionStatistics The collection statistics
protected CollectionStatistics	TRECResultsMatching.collStats The underlying collections statistics.

Methods in org.terrier.matching that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	FatResultSet.getCollectionStatistics() Get the collection statistics that should be applied when (re)scoring any documents in this query
CollectionStatistics	FatQueryResultSet.getCollectionStatistics() Get the collection statistics that should be applied when (re)scoring any documents in this query
CollectionStatistics	TRECResultsMatching.getCollectionStatistics() Returns collection statistics.

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

Modifier and Type	Method and Description
void	ScoringMatching.setCollectionStatistics(CollectionStatistics cs)
void	LearnedModelMatching.setCollectionStatistics(CollectionStatistics cs)
void	FeaturedScoringMatching.setCollectionStatistics(CollectionStatistics cs)
void	FatScoringMatching.setCollectionStatistics(CollectionStatistics cs)
void	FatResultsMatching.setCollectionStatistics(CollectionStatistics cs)
void	FatResultSet.setCollectionStatistics(CollectionStatistics cs)
void	FatQueryResultSet.setCollectionStatistics(CollectionStatistics cs)
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
void	TRECResultsMatching.setCollectionStatistics(CollectionStatistics _collStats)

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

Constructor and Description
FatQueryResultSet(int numberOfDocuments, CollectionStatistics cs, String[] qs, EntryStatistics[] es, double[] ks, Set<String>[] ts)
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, String scoringTag, String additionalTag) Create a posting list manager for the given index and statistics, and populated using the specified MatchingQueryTerms.

Uses of CollectionStatistics in org.terrier.matching.daat

Methods in org.terrier.matching.daat that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	FatCandidateResultSet.getCollectionStatistics()

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

Modifier and Type	Method and Description
void	FatCandidateResultSet.setCollectionStatistics(CollectionStatistics cs)

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

Constructor and Description
FatCandidateResultSet(Collection<CandidateResult> q, CollectionStatistics cs, String[] queryTerms, EntryStatistics[] entryStats, double[] keyFrequency, Set<String>[] tags)
FatCandidateResultSet(List<CandidateResult> q, CollectionStatistics cs, String[] queryTerms, EntryStatistics[] entryStats, double[] keyFrequency) Deprecated.

Uses of CollectionStatistics in org.terrier.matching.dsms

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

Modifier and Type	Method and Description
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.matchops

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

Modifier and Type	Method and Description
MatchingEntry	SingleTermOp.getMatcher(MatchingQueryTerms.QueryTermProperties qtp, Index index, Lexicon<String> lexicon, PostingIndex<Pointer> invertedIndex, CollectionStatistics collectionStatistics)
abstract MatchingEntry	Operator.getMatcher(MatchingQueryTerms.QueryTermProperties qtp, Index index, Lexicon<String> lex, PostingIndex<Pointer> inv, CollectionStatistics collStats) get an entry for matching for this query op.
MatchingEntry	MultiTermOp.getMatcher(MatchingQueryTerms.QueryTermProperties qtp, Index index, Lexicon<String> lexicon, PostingIndex<Pointer> invertedIndex, CollectionStatistics collectionStatistics)
MatchingEntry	DateRangeOp.getMatcher(MatchingQueryTerms.QueryTermProperties qtp, Index index, Lexicon<String> lexTerm, PostingIndex<Pointer> invTerm, CollectionStatistics collectionStats)
protected EntryStatistics	UnorderedWindowOp.mergeStatistics(EntryStatistics[] entryStats, CollectionStatistics collStats)
protected EntryStatistics	SynonymOp.mergeStatistics(EntryStatistics[] entryStats, CollectionStatistics collStats) Adjust the statistics for the #syn operator: 1.
protected EntryStatistics	PhraseOp.mergeStatistics(EntryStatistics[] entryStats, CollectionStatistics collStats)
protected EntryStatistics	MultiTermOp.mergeStatistics(EntryStatistics[] entryStats, CollectionStatistics collStats)
protected EntryStatistics	ANDQueryOp.mergeStatistics(EntryStatistics[] entryStats, CollectionStatistics collStats) Adjust the statistics for this operator: 1.

Uses of CollectionStatistics in org.terrier.matching.models

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

Modifier and Type	Field and Description
protected CollectionStatistics	WeightingModel.cs

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

Modifier and Type	Method and Description
void	WeightingModel.setCollectionStatistics(CollectionStatistics _cs) Sets collection statistics
void	SingleFieldModel.setCollectionStatistics(CollectionStatistics _cs)
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

Modifier and Type	Field and Description
protected CollectionStatistics	QueryExpansion.collStats The statistics of the index

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

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

Uses of CollectionStatistics in org.terrier.realtime.memory

Subclasses of CollectionStatistics in org.terrier.realtime.memory

Modifier and Type	Class and Description
class	MemoryCollectionStatistics This class provides basic statistics in memory for a collection of documents, such as the average length of documents, or the total number of documents in the collection.

Methods in org.terrier.realtime.memory that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	MemoryIndex.getCollectionStatistics() Get the collection statistics

Uses of CollectionStatistics in org.terrier.realtime.multi

Subclasses of CollectionStatistics in org.terrier.realtime.multi

Modifier and Type	Class and Description
class	MultiStats A collection statistics class for use with a MultiIndex.

Methods in org.terrier.realtime.multi that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	MultiIndex.getCollectionStatistics() Get the collection statistics

Methods in org.terrier.realtime.multi with parameters of type CollectionStatistics

Modifier and Type	Method and Description
static MultiStats	MultiStats.factory(CollectionStatistics[] stats) Constructor.

Uses of CollectionStatistics in org.terrier.services.websitesearch

Methods in org.terrier.services.websitesearch that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	WebsiteSearch.getCollectionStatistics()

Uses of CollectionStatistics in org.terrier.structures

Subclasses of CollectionStatistics in org.terrier.structures

Modifier and Type	Class and Description
protected class	Index.UpdatingCollectionStatistics This collection statistics parses the associated index properties for each call.

Methods in org.terrier.structures that return CollectionStatistics

Modifier and Type	Method and Description
CollectionStatistics	IndexOnDisk.getCollectionStatistics()
abstract CollectionStatistics	Index.getCollectionStatistics() Get the collection statistics

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

Modifier and Type	Method and Description
void	CollectionStatistics.addStatistics(CollectionStatistics cs) Increment the statistics by the specified amount