Package org.terrier.matching.daat

Class FatFull

java.lang.Object

org.terrier.matching.BaseMatching

org.terrier.matching.daat.Full

org.terrier.matching.daat.FatFull

All Implemented Interfaces:

Matching

public class FatFull
extends Full

A subclass of Full that creates a FatResultSet. This class is a key component of the Fat framework, as described by Macdonald et al., TOIS 2013.

See also: About Learning Models with Multiple Query Dependent Features. Craig Macdonald, Rodrygo L.T. Santos, Iadh Ounis and Ben He. Transactions on Information Systems. 31(3). 2013. [PDF]"

Since:

4.0

Author:

Eric Sutherland, Craig Macdonald

Nested Class Summary

Nested classes/interfaces inherited from class org.terrier.matching.BaseMatching

BaseMatching.MatchingState

Field Summary

Fields inherited from class org.terrier.matching.BaseMatching

BASE_MATCHING_TAG, collectionStatistics, documentModifiers, dsmNamespace, IGNORE_LOW_IDF_TERMS, index, invertedIndex, lexicon, logger, MATCH_EMPTY_QUERY, NONMATCHING_TAG

Constructor Summary

Constructors

Constructor	Description
FatFull(Index index)

Method Summary

Modifier and Type	Method	Description
protected void	assignNotScore(org.terrier.matching.daat.Full.DAATFullMatchingState _state, int i, CandidateResult cc)
protected void	assignScore(org.terrier.matching.daat.Full.DAATFullMatchingState state, int i, CandidateResult cc)	assign the score for this posting to this candidate result.
protected void	initialisePostings(BaseMatching.MatchingState _state)
protected BaseMatching.MatchingState	initialiseState()
protected CandidateResult	makeCandidateResult(org.terrier.matching.daat.Full.DAATFullMatchingState state, int currentDocId)
protected CandidateResultSet	makeResultSet(org.terrier.matching.daat.Full.DAATFullMatchingState state, java.util.Queue<CandidateResult> candidateResultList)

Methods inherited from class org.terrier.matching.daat.Full

getInfo, match, selectMinimumDocId

Methods inherited from class org.terrier.matching.BaseMatching

finalise, initialise, setCollectionStatistics

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FatFull

public FatFull(Index index)

Method Detail

initialiseState

protected BaseMatching.MatchingState initialiseState()

Overrides:

initialiseState in class Full

initialisePostings

protected void initialisePostings(BaseMatching.MatchingState _state)

Overrides:

initialisePostings in class Full

makeCandidateResult

protected CandidateResult makeCandidateResult(org.terrier.matching.daat.Full.DAATFullMatchingState state,
                                              int currentDocId)

Overrides:

makeCandidateResult in class Full

makeResultSet

protected CandidateResultSet makeResultSet(org.terrier.matching.daat.Full.DAATFullMatchingState state,
                                           java.util.Queue<CandidateResult> candidateResultList)

Overrides:

makeResultSet in class Full

assignScore

protected void assignScore(org.terrier.matching.daat.Full.DAATFullMatchingState state,
                           int i,
                           CandidateResult cc)
                    throws java.io.IOException

Description copied from class: Full

assign the score for this posting to this candidate result.

Overrides:

assignScore in class Full

i - which query term index this represents

cc - the candidate result object for this document

Throws:

java.io.IOException

assignNotScore

protected void assignNotScore(org.terrier.matching.daat.Full.DAATFullMatchingState _state,
                              int i,
                              CandidateResult cc)
                       throws java.io.IOException

Overrides:

assignNotScore in class Full

Throws:

java.io.IOException