org.conqat.lib.commons.datamining

Class AssociationRule<T>

java.lang.Object

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

All Implemented Interfaces:

java.io.Serializable

public class AssociationRule<T>
extends java.lang.Object
implements java.io.Serializable

An association rule is of the form I -> j, where I is a set of items and j is an item. The rule means that if all items of I appear in a shopping basket, then j is "likely" to appear in that basket as well. Likely is defined by the confidence which is computed as the ratio between the number of baskets containing both I and j and the number of baskets that contain I.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AssociationRule(java.util.Set<T> itemSet, T associatedItem, double confidence)

Method Summary

Modifier and Type	Method and Description
T	getAssociatedItem() Returns the associated item
double	getConfidence() Returns the confidence.
java.util.Set<T>	getItemSet() Returns the item set
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

AssociationRule

public AssociationRule(java.util.Set<T> itemSet,
                       T associatedItem,
                       double confidence)

Method Detail

getItemSet

public java.util.Set<T> getItemSet()

Returns the item set

getAssociatedItem

public T getAssociatedItem()

Returns the associated item

getConfidence

public double getConfidence()

Returns the confidence.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object