de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules

Class AssociationRuleGeneration.Instance

java.lang.Object

de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules.AssociationRuleGeneration.Instance

Enclosing class:

AssociationRuleGeneration

public class AssociationRuleGeneration.Instance
extends java.lang.Object

Class to run

Author:

Erich Schubert

Field Summary

Fields

Modifier and Type	Field and Description
private VectorFieldTypeInformation<BitVector>	meta Metadata for printing.
private java.util.ArrayList<AssociationRule>	rules List of generated rules.
private AssociationRuleGeneration.PartialItemset	scratch1 Scratch itemset: antecedent.
private AssociationRuleGeneration.PartialItemset	scratch2 Scratch itemset: consequent.
private AssociationRuleGeneration.ItemsetSearcher	searcher Class to search for itemsets via binary search.
private int	totalTransactions Total number of transactions, needed by some measures.

Constructor Summary

Constructors

Constructor and Description
Instance()

Method Summary

Modifier and Type	Method and Description
private void	processSubsets(Itemset itemset, int len, int cur)
AssociationRuleResult	run(FrequentItemsetsResult frequentResult) Process a set of frequent itemsets.

Methods inherited from class java.lang.Object

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

Field Detail

totalTransactions

private int totalTransactions

Total number of transactions, needed by some measures.

scratch1

private AssociationRuleGeneration.PartialItemset scratch1

Scratch itemset: antecedent.

scratch2

private AssociationRuleGeneration.PartialItemset scratch2

Scratch itemset: consequent.

rules

private java.util.ArrayList<AssociationRule> rules

List of generated rules.

searcher

private AssociationRuleGeneration.ItemsetSearcher searcher

Class to search for itemsets via binary search.

meta

private VectorFieldTypeInformation<BitVector> meta

Metadata for printing.

Constructor Detail

Instance

public Instance()

Method Detail

run

public AssociationRuleResult run(FrequentItemsetsResult frequentResult)

Process a set of frequent itemsets.

Parameters:

frequentResult - Frequent itemsets.

Returns:

Association rules

processSubsets

private void processSubsets(Itemset itemset,
                            int len,
                            int cur)