org.conqat.lib.commons.datamining

Class AssociationRuleMiner<T>

java.lang.Object

org.conqat.lib.commons.datamining.AssociationRuleMiner<T>

Type Parameters:

T - the item type; must support hashing.

public class AssociationRuleMiner<T>
extends java.lang.Object

Mines association rules from a set of shopping baskets. Uses Apriori algorithm. See http://en.wikipedia.org/wiki/Apriori_algorithm.

Constructor Summary

Constructors

Constructor and Description
AssociationRuleMiner(float supportThreshold, float confidenceThreshold) Constructor.

Method Summary

Modifier and Type	Method and Description
java.util.Set<AssociationRule<T>>	mineAssociationRules(java.util.Set<java.util.Set<T>> baskets) Mines frequent item sets from the given shopping baskets.

Methods inherited from class java.lang.Object

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

Constructor Detail

AssociationRuleMiner

public AssociationRuleMiner(float supportThreshold,
                            float confidenceThreshold)

Constructor.

Parameters:

supportThreshold - the support threshold [0..1], i.e. the fraction of the baskets in which a frequent item set must be present in order to be considered.

confidenceThreshold - the minimal confidence of the mined rules [0..1].

Method Detail

mineAssociationRules

public java.util.Set<AssociationRule<T>> mineAssociationRules(java.util.Set<java.util.Set<T>> baskets)

Mines frequent item sets from the given shopping baskets.