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

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, numberOfRetrievedDocuments, resultSet, RETRIEVED_SET_SIZE, totalTime

Constructor Summary

Constructors

Constructor and Description
FatFull(Index index)

Method Summary

Modifier and Type	Method and Description
protected void	assignScore(int i, CandidateResult cc) assign the score for this posting to this candidate result.
protected void	initialisePostings(PostingListManager plm)
protected CandidateResult	makeCandidateResult(int currentDocId)
protected CandidateResultSet	makeResultSet(Queue<CandidateResult> candidateResultList)

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

getInfo, match, selectMinimumDocId

Methods inherited from class org.terrier.matching.BaseMatching

finalise, getTotalTime, initialise, setCollectionStatistics, updateEndTime, updateStartTime

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

initialisePostings

protected void initialisePostings(PostingListManager plm)

Overrides:

initialisePostings in class Full

makeCandidateResult

protected CandidateResult makeCandidateResult(int currentDocId)

Overrides:

makeCandidateResult in class Full

makeResultSet

protected CandidateResultSet makeResultSet(Queue<CandidateResult> candidateResultList)

Overrides:

makeResultSet in class Full

assignScore

protected void assignScore(int i,
                           CandidateResult cc)
                    throws IOException

Description copied from class: Full

assign the score for this posting to this candidate result.

Overrides:

assignScore in class Full

Parameters:

i - which query term index this represents

cc - the candidate result object for this document

Throws:

IOException