ca.pfv.spmf.algorithms.associationrules.IGB

Class AlgoIGB

java.lang.Object

ca.pfv.spmf.algorithms.associationrules.IGB.AlgoIGB

public class AlgoIGB
extends java.lang.Object

This is an implementation of the GEN-IGB-FERMES algorithm for mining the IGB basis of association rules.

This algorithm is described in the article (in French) : "IGB : une nouvelle base g�n�rique informative des r�gles d�association" dans Information-Interaction-Intelligence (Revue I3), vol. 6, n� 1, C�padu�s-�ditions, pp. 31-67, octobre 2006

This algorithm generates the IGB basis of association rules from the set of frequent closed itemsets, their support and their associated minimal generators.

This algorithm can save the result to a file or keep it into memory if the user provides a null output file path to the runAlgorithm() method.

Constructor Summary

Constructors

Constructor and Description
AlgoIGB()

Method Summary

Modifier and Type	Method and Description
void	printStatistics() Print statistics about the algorithm execution to System.out.
Rules	runAlgorithm(TZTableClosed closedPatternsAndGenerators, int databaseSize, double minconf, java.lang.String outputFilePath) Run the algorithm.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlgoIGB

public AlgoIGB()

Method Detail

runAlgorithm

public Rules runAlgorithm(TZTableClosed closedPatternsAndGenerators,
                          int databaseSize,
                          double minconf,
                          java.lang.String outputFilePath)
                   throws java.io.IOException

Run the algorithm.

Parameters:

closedPatternsAndGenerators - Closed itemsets and their associated generators.

databaseSize - the number of transactions in the transaction database.

outputFilePath - the output file path, if the results should be saved to a file. if null, the result are saved in memory and returned by this method.

Returns:

if the user chose to save to memory, this methods return the set of IGB association rules, otherwise, the result is saved to the output file chosen by the user.

Throws:

java.io.IOException

printStatistics

public void printStatistics()

Print statistics about the algorithm execution to System.out.