net.sf.tweety.machinelearning.assoc

Class AprioriMiner<T>

java.lang.Object

net.sf.tweety.machinelearning.assoc.AbstractAssociationRuleMiner<T>

net.sf.tweety.machinelearning.assoc.AprioriMiner<T>

Type Parameters:

T - the type of items

All Implemented Interfaces:

AssociationRuleMiner<T>

public class AprioriMiner<T>
extends AbstractAssociationRuleMiner<T>

Implements the classical Apriori algorithm for association rule mining, cf. [R. Agrawal, R. Srikant. Fast algorithms for mining association rules in large databases. VLDB 1994.]

Author:

Matthias Thimm

Constructor Summary

Constructors

Constructor and Description
AprioriMiner(double minsupport, double minconf) Creates a new Apriori miner with the given minimum support and minimum confidence values.

Method Summary

Modifier and Type	Method and Description
Collection<AssociationRule<T>>	mineRules(Collection<Collection<T>> database, int conclusion_limit, int total_limit) Mines a set of association rules from the given database.

Methods inherited from class net.sf.tweety.machinelearning.assoc.AbstractAssociationRuleMiner

mineRules, mineRules

Methods inherited from class java.lang.Object

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

Constructor Detail

AprioriMiner

public AprioriMiner(double minsupport,
                    double minconf)

Creates a new Apriori miner with the given minimum support and minimum confidence values.

Parameters:

minsupport - the minimum confidence for mined rules.

minconf - the minimum support for mined rules.

Method Detail

mineRules

public Collection<AssociationRule<T>> mineRules(Collection<Collection<T>> database,
                                                int conclusion_limit,
                                                int total_limit)

Description copied from interface: AssociationRuleMiner

Mines a set of association rules from the given database. Only those rules are mined where the conclusion and in total has the maximal given number of elements, respectively.

Parameters:

database - some database

Returns:

a set of association rules.