org.carrot2.clustering.lingo
Class ClusterBuilder

java.lang.Object
  org.carrot2.clustering.lingo.ClusterBuilder

public class ClusterBuilder
extends Object

Builds cluster labels based on the reduced term-document matrix and assigns documents to the labels.

Field Summary

double	clusterMergingThreshold Cluster merging threshold.
IFeatureScorer	featureScorer Optional feature scorer.
ILabelAssigner	labelAssigner Cluster label assignment method.
double	phraseLabelBoost Phrase label boost.
int	phraseLengthPenaltyStart Phrase length penalty start.
int	phraseLengthPenaltyStop Phrase length penalty stop.

Constructor Summary

ClusterBuilder()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

phraseLabelBoost

public double phraseLabelBoost

Phrase label boost. The weight of multi-word labels relative to one-word labels. Low values will result in more one-word labels being produced, higher values will favor multi-word labels.

Attribute label:

Phrase label boost

Attribute level:

Medium

Attribute group:

Labels

phraseLengthPenaltyStart

public int phraseLengthPenaltyStart

Phrase length penalty start. The phrase length at which the overlong multi-word labels should start to be penalized. Phrases of length smaller than phraseLengthPenaltyStart will not be penalized.

Attribute label:

Phrase length penalty start

Attribute level:

Advanced

Attribute group:

Labels

phraseLengthPenaltyStop

public int phraseLengthPenaltyStop

Phrase length penalty stop. The phrase length at which the overlong multi-word labels should be removed completely. Phrases of length larger than phraseLengthPenaltyStop will be removed.

Attribute label:

Phrase length penalty stop

Attribute level:

Advanced

Attribute group:

Labels

clusterMergingThreshold

public double clusterMergingThreshold

Cluster merging threshold. The percentage overlap between two cluster's documents required for the clusters to be merged into one clusters. Low values will result in more aggressive merging, which may lead to irrelevant documents in clusters. High values will result in fewer clusters being merged, which may lead to very similar or duplicated clusters.

Attribute label:

Cluster merging threshold

Attribute level:

Medium

Attribute group:

Labels

featureScorer

public IFeatureScorer featureScorer

Optional feature scorer. We don't make it an attribute for now as the core Lingo will not have any implementations for this interface.

labelAssigner

public ILabelAssigner labelAssigner

Cluster label assignment method.

Attribute label:

Cluster label assignment method

Attribute level:

Advanced

Attribute group:

Labels

Constructor Detail

ClusterBuilder

public ClusterBuilder()