org.terrier.matching.taat
Class Full

java.lang.Object
  org.terrier.matching.BaseMatching
      org.terrier.matching.taat.Full

All Implemented Interfaces:

Matching

public class Full
extends BaseMatching

An exhaustive TAAT approach for matching documents to a query. This Matching strategy uses the PostingListManager for opening and scoring postings.

Since:

3.0

Author:

Nicola Tonellotto, Craig Macdonald

See Also:

PostingListManager

Field Summary

Fields inherited from class org.terrier.matching.BaseMatching

collectionStatistics, documentModifiers, dsmNamespace, IGNORE_LOW_IDF_TERMS, index, invertedIndex, lexicon, logger, MATCH_EMPTY_QUERY, numberOfRetrievedDocuments, queryTermsToMatchList, resultSet, RETRIEVED_SET_SIZE, totalTime, wm

Constructor Summary

Full(Index index)
Create a new Matching instance based on the specified index

Method Summary

protected void	assignScores(int i, AccumulatorResultSet rs, IterablePosting postings)
java.lang.String	getInfo() Return a human readable description of this Matching class
protected void	initialisePostings(MatchingQueryTerms queryTerms)
ResultSet	match(java.lang.String queryNumber, MatchingQueryTerms queryTerms) Get a ResultSet for the given query terms.

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

Full

public Full(Index index)

Create a new Matching instance based on the specified index

Method Detail

getInfo

public java.lang.String getInfo()

Return a human readable description of this Matching class

Specified by:

getInfo in interface Matching

Specified by:

getInfo in class BaseMatching

match

public ResultSet match(java.lang.String queryNumber,
                       MatchingQueryTerms queryTerms)
                throws java.io.IOException

Get a ResultSet for the given query terms.

Specified by:

match in interface Matching

Specified by:

match in class BaseMatching

Parameters:

queryNumber - - some ID of the query

queryTerms - - query terms to match

Returns:

ResultSet - the matched results

Throws:

java.io.IOException - if a problem occurs during matching

assignScores

protected void assignScores(int i,
                            AccumulatorResultSet rs,
                            IterablePosting postings)
                     throws java.io.IOException

Throws:

java.io.IOException

initialisePostings

protected void initialisePostings(MatchingQueryTerms queryTerms)

Overrides:

initialisePostings in class BaseMatching