Uses of Package
org.terrier.structures

Packages that use org.terrier.structures

org.terrier.applications	Provides application-level code that use the Terrier platform to perform indexing and retrieval from either standard test collections, interactive querying of a indexed collection, or desktop search.
org.terrier.indexing	Provides classes and interfaces related to the indexing of documents.
org.terrier.indexing.hadoop	Provides classes for Terrier's MapReduce indexer.
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.models	Provides the classes that implement various weighting models.
org.terrier.matching.tsms	Provides the interface and classes that implement the term score modifiers, which modify the scores assigned to documents for a particular term.
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.
org.terrier.structures.collections	Provides data structures various data structures.
org.terrier.structures.indexing	Provides the classes used for creating the data structures of the Terrier platform.
org.terrier.structures.indexing.singlepass	Provides implementation of the structures needed for performing a single pass indexing
org.terrier.structures.indexing.singlepass.hadoop	Provides classes implemeting the Hadoop MapReduce indexing in Terrier.
org.terrier.structures.merging	Provides classes for merging two sets of data structures, created by Terrier, into one set of data structures.
org.terrier.structures.postings	Provides classes representing single postings and atreams of postings in a posting list (e.g.
org.terrier.utility.io	This package includes classes that are used for various IO duties within Terrier.

Classes in org.terrier.structures used by org.terrier.applications

Index
This class encapsulates all the Indexes at retrieval time.

Classes in org.terrier.structures used by org.terrier.indexing

DirectInvertedOutputStream
Writes a block direct or block inverted index, when passed appropriate posting lists.

DocumentIndexEntry
A document index entry.

Index
This class encapsulates all the Indexes at retrieval time.

Classes in org.terrier.structures used by org.terrier.indexing.hadoop

Index
This class encapsulates all the Indexes at retrieval time.

LexiconOutputStream
This class implements an output stream for the lexicon structure.

Classes in org.terrier.structures used by org.terrier.matching

CollectionStatistics
This class provides basic statistics for the indexed collection of documents, such as the average length of documents, or the total number of documents in the collection.

EntryStatistics
An interface for basic statistics about a lexical entry (usually a term)

Index
This class encapsulates all the Indexes at retrieval time.

Lexicon
Abstract Lexicon implementation.

LexiconEntry
Represents the statistics of a term in the Lexicon, and a pointer to the term's location in the InvertedIndex.

Pointer
A base interface for all pointers

PostingIndex
An interface for accessing a posting list.

Classes in org.terrier.structures used by org.terrier.matching.daat

Index
This class encapsulates all the Indexes at retrieval time.

Classes in org.terrier.structures used by org.terrier.matching.dsms

CollectionStatistics
This class provides basic statistics for the indexed collection of documents, such as the average length of documents, or the total number of documents in the collection.

EntryStatistics
An interface for basic statistics about a lexical entry (usually a term)

Index
This class encapsulates all the Indexes at retrieval time.

LexiconEntry
Represents the statistics of a term in the Lexicon, and a pointer to the term's location in the InvertedIndex.

Classes in org.terrier.structures used by org.terrier.matching.models

CollectionStatistics
This class provides basic statistics for the indexed collection of documents, such as the average length of documents, or the total number of documents in the collection.

EntryStatistics
An interface for basic statistics about a lexical entry (usually a term)

Index
This class encapsulates all the Indexes at retrieval time.

Classes in org.terrier.structures used by org.terrier.matching.tsms

Index
This class encapsulates all the Indexes at retrieval time.

IndexConfigurable
Interface defining that an index structure wants access to the Index object it is associated with.

Classes in org.terrier.structures used by org.terrier.querying

CollectionStatistics
This class provides basic statistics for the indexed collection of documents, such as the average length of documents, or the total number of documents in the collection.

DocumentIndex
Interface for a document index.

Index
This class encapsulates all the Indexes at retrieval time.

Lexicon
Abstract Lexicon implementation.

MetaIndex
Interface for document metadata.

Pointer
A base interface for all pointers

PostingIndex
An interface for accessing a posting list.

Classes in org.terrier.structures used by org.terrier.structures

BasicDocumentIndexEntry
A basic document index entry.

BasicDocumentIndexEntry.Factory
Returna a factory for creating document index entries

BasicLexiconEntry
Contains all the information about one entry in the Lexicon.

BasicLexiconEntry.Factory
Factory for creating LexiconEntry objects

BitFilePosition
A bit file position

BitIndexPointer
A pointer implementation for BitPostingIndex structures.

BitPostingIndex
Class for various bit compressed index implementations, including parents to current DirectIndex and InvertedIndex implementations.

BitPostingIndexInputStream
Input stream for a bit posting index.

BlockEntryStatistics
Interface describing the statistics for a block entry.

CollectionStatistics
This class provides basic statistics for the indexed collection of documents, such as the average length of documents, or the total number of documents in the collection.

DirectIndex
A class that implements the direct index and saves information about whether a term appears in one of the specified fields.

DirectIndexInputStream
This class reads the direct index structure, sequentially, as an input stream.

DirectInvertedOutputStream
Writes a block direct or block inverted index, when passed appropriate posting lists.

DocumentIndex
Interface for a document index.

DocumentIndexEntry
A document index entry.

EntryStatistics
An interface for basic statistics about a lexical entry (usually a term)

FieldDirectInvertedOutputStream
Bit out class for writing a posting list with fields

FieldDocumentIndex
Interface for a fields document index

FieldEntryStatistics
The statistics for a field entry

FSADocumentIndex
Document Index saved as a fixed size array

Index
This class encapsulates all the Indexes at retrieval time.

IndexConfigurable
Interface defining that an index structure wants access to the Index object it is associated with.

InvertedIndex
This class implements the inverted index for performing retrieval, with field information optionally.

InvertedIndexInputStream
Reads an InvertedIndex as a stream

Lexicon
Abstract Lexicon implementation.

LexiconEntry
Represents the statistics of a term in the Lexicon, and a pointer to the term's location in the InvertedIndex.

LexiconOutputStream
This class implements an output stream for the lexicon structure.

MapLexicon
Implementation of a lexicon.

MapLexicon.Id2EntryIndexLookup
Interface for getting the lexicon term index for a given term id

MetaIndex
Interface for document metadata.

Pointer
A base interface for all pointers

PostingIndex
An interface for accessing a posting list.

PostingIndexInputStream
Interface for reading postings from an input stream

SimpleBitIndexPointer
An implementation of a BitIndexPointer.

Skipable
Interface denoting implementations which can skip forward in a stream by a number of entries.

TRECQuery
This class is used for reading the queries from TREC topic files.

Classes in org.terrier.structures used by org.terrier.structures.collections

Index
This class encapsulates all the Indexes at retrieval time.

Skipable
Interface denoting implementations which can skip forward in a stream by a number of entries.

Classes in org.terrier.structures used by org.terrier.structures.indexing

DocumentIndexEntry
A document index entry.

Index
This class encapsulates all the Indexes at retrieval time.

LexiconEntry
Represents the statistics of a term in the Lexicon, and a pointer to the term's location in the InvertedIndex.

LexiconOutputStream
This class implements an output stream for the lexicon structure.

Classes in org.terrier.structures used by org.terrier.structures.indexing.singlepass

BitFilePosition
A bit file position

DocumentIndexEntry
A document index entry.

Index
This class encapsulates all the Indexes at retrieval time.

InvertedIndexInputStream
Reads an InvertedIndex as a stream

LexiconEntry
Represents the statistics of a term in the Lexicon, and a pointer to the term's location in the InvertedIndex.

LexiconOutputStream
This class implements an output stream for the lexicon structure.

Classes in org.terrier.structures used by org.terrier.structures.indexing.singlepass.hadoop

DirectInvertedOutputStream
Writes a block direct or block inverted index, when passed appropriate posting lists.

Index
This class encapsulates all the Indexes at retrieval time.

LexiconOutputStream
This class implements an output stream for the lexicon structure.

Classes in org.terrier.structures used by org.terrier.structures.merging

DirectInvertedOutputStream
Writes a block direct or block inverted index, when passed appropriate posting lists.

Index
This class encapsulates all the Indexes at retrieval time.

Classes in org.terrier.structures used by org.terrier.structures.postings

DocumentIndex
Interface for a document index.

Lexicon
Abstract Lexicon implementation.

Pointer
A base interface for all pointers

PostingIndex
An interface for accessing a posting list.

Classes in org.terrier.structures used by org.terrier.utility.io

Index
This class encapsulates all the Indexes at retrieval time.