de.uni_mannheim.informatik.dws.winter.matching.blockers

Interface Blocker<RecordType extends Matchable,SchemaElementType extends Matchable,BlockedType extends Matchable,CorrespondenceType extends Matchable>

Type Parameters:

RecordType - The type of Records in the input dataset(s)

SchemaElementType - The type of Schema Elements in the input dataset(s)

BlockedType - The type of Records in the Correspondences (Pairs) that are the result of the blocking

CorrespondenceType - The type of Records in the causes of the Correspondences (Pairs) that are the result of the blocking

All Known Implementing Classes:

BlockingKeyIndexer, CorrespondenceCombiningBlocker, GoldStandardBlocker, InstanceBasedBlockingKeyIndexer, InstanceBasedSchemaBlocker, NoBlocker, NoSchemaBlocker, SortedNeighbourhoodBlocker, StandardBlocker, StandardBlockerWithBlockFiltering, StandardRecordBlocker, StandardRecordBlockerWithBlockFiltering, StandardSchemaBlocker, ValueBasedBlocker

public interface Blocker<RecordType extends Matchable,SchemaElementType extends Matchable,BlockedType extends Matchable,CorrespondenceType extends Matchable>

Interface for a blocker that generates pairs of records from two data sets

Author:

Oliver Lehmberg (oli@dwslab.de)

Method Summary

Modifier and Type	Method and Description
double	getReductionRatio()
boolean	isMeasureBlockSizes()
Processable<Correspondence<BlockedType,CorrespondenceType>>	runBlocking(DataSet<RecordType,SchemaElementType> dataset1, DataSet<RecordType,SchemaElementType> dataset2, Processable<Correspondence<CorrespondenceType,Matchable>> schemaCorrespondences) Gives the possible candidates for the correspondences between the first and second data sets.
void	writeDebugBlockingResultsToFile()

Method Detail

runBlocking

Processable<Correspondence<BlockedType,CorrespondenceType>> runBlocking(DataSet<RecordType,SchemaElementType> dataset1,
                                                                        DataSet<RecordType,SchemaElementType> dataset2,
                                                                        Processable<Correspondence<CorrespondenceType,Matchable>> schemaCorrespondences)

Gives the possible candidates for the correspondences between the first and second data sets.

Parameters:

dataset1 - the first data set (must not be null)

dataset2 - the second data set (must not be null)

schemaCorrespondences - schema correspondences between the first and second data sets (must not be null)

Returns:

the blocked pairs between the first and second data sets.

getReductionRatio

double getReductionRatio()

isMeasureBlockSizes

boolean isMeasureBlockSizes()

writeDebugBlockingResultsToFile

void writeDebugBlockingResultsToFile()