keel.Algorithms.UnsupervisedLearning.AssociationRules.IntervalRuleLearning.Apriori

Class AprioriProcess

java.lang.Object

keel.Algorithms.UnsupervisedLearning.AssociationRules.IntervalRuleLearning.Apriori.AprioriProcess

public class AprioriProcess
extends java.lang.Object

It provides the implementation of the Apriori algorithm to be run in a process

Since:

JDK1.6

Version:

1.0

Author:

Written by Nicolò Flugy Papè (Politecnico di Milano) 24/03/2009, Modified by Diana Martín (dmartin@ceis.cujae.edu.cu)

Constructor Summary

Constructors

Constructor and Description
AprioriProcess(myDataset dataset, double minSupport, double minConfidence) It creates a new process for the algorithm by setting up its parameters

Method Summary

Modifier and Type	Method and Description
java.util.ArrayList<AssociationRule>	generateRulesSet() It constructs a rules set once the algorithm has been carried out
void	printReport(java.util.ArrayList<AssociationRule> rules) It prints out on screen relevant information regarding the mined association rules
static double	roundDouble(double number, int decimalPlace) Rounds the number applying the BigDecimal rounding mode given.
void	run() It runs the algorithm for mining association rules
void	saveReport(java.util.ArrayList<AssociationRule> rules, java.io.PrintWriter w) It prints out on the given PrintWriter object. relevant information regarding the mined association rules

Methods inherited from class java.lang.Object

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

Constructor Detail

AprioriProcess

public AprioriProcess(myDataset dataset,
                      double minSupport,
                      double minConfidence)

It creates a new process for the algorithm by setting up its parameters

Parameters:

dataset - The instance of the dataset for dealing with its records

minSupport - The user-specified minimum support for the mined association rules

minConfidence - The user-specified minimum confidence for the mined association rules

Method Detail

run

public void run()

It runs the algorithm for mining association rules

generateRulesSet

public java.util.ArrayList<AssociationRule> generateRulesSet()

It constructs a rules set once the algorithm has been carried out

Returns:

An array of association rules having both minimum confidence and support

printReport

public void printReport(java.util.ArrayList<AssociationRule> rules)

It prints out on screen relevant information regarding the mined association rules

Parameters:

rules - The array of association rules from which gathering relevant information

saveReport

public void saveReport(java.util.ArrayList<AssociationRule> rules,
                       java.io.PrintWriter w)

It prints out on the given PrintWriter object. relevant information regarding the mined association rules

Parameters:

rules - The array of association rules from which gathering relevant information

w - given PrintWriter object to write on.

roundDouble

public static double roundDouble(double number,
                                 int decimalPlace)

Rounds the number applying the BigDecimal rounding mode given.

Parameters:

number - number to be rounded.

decimalPlace - given rounding mode.

Returns:

the rounded number.