Uses of Class
elki.itemsetmining.Itemset

Packages that use Itemset

Package	Description
elki.itemsetmining	Algorithms for frequent itemset mining such as APRIORI.
elki.itemsetmining.associationrules	Association rule mining.
elki.result	Result types, representation and handling.

Uses of Itemset in elki.itemsetmining

Subclasses of Itemset in elki.itemsetmining

Modifier and Type	Class	Description
class	DenseItemset	APRIORI itemset, dense representation.
class	OneItemset	Frequent itemset with one element.
class	SmallDenseItemset	Frequent itemset, dense representation for up to 64 items.
class	SparseItemset	Frequent itemset, sparse representation.

Methods in elki.itemsetmining that return types with arguments of type Itemset

Modifier and Type	Method	Description
protected java.util.List<Itemset>	APRIORI.aprioriGenerate(java.util.List<? extends Itemset> supported, int length, int dim)	Prunes a given set of candidates to keep only those BitSets where all subsets of bits flipping one bit are frequent already.
protected java.util.List<? extends Itemset>	APRIORI.frequentItemsets(java.util.List<? extends Itemset> candidates, Relation<BitVector> relation, int needed, DBIDs ids, ArrayModifiableDBIDs survivors, int length)	Returns the frequent BitSets out of the given BitSets with respect to the given database.

Methods in elki.itemsetmining with parameters of type Itemset

Modifier and Type	Method	Description
protected static int	Itemset.compareLexicographical(Itemset a, Itemset o)	Robust compare using the iterators, lexicographical only!
int	DenseItemset.compareTo(Itemset o)
int	Itemset.compareTo(Itemset o)
int	OneItemset.compareTo(Itemset o)
int	SmallDenseItemset.compareTo(Itemset o)
int	SparseItemset.compareTo(Itemset o)
static long[]	Itemset.toBitset(Itemset i, long[] bits)	Get the items.

Method parameters in elki.itemsetmining with type arguments of type Itemset

Modifier and Type	Method	Description
protected java.util.List<Itemset>	APRIORI.aprioriGenerate(java.util.List<? extends Itemset> supported, int length, int dim)	Prunes a given set of candidates to keep only those BitSets where all subsets of bits flipping one bit are frequent already.
private java.lang.StringBuilder	APRIORI.debugDumpCandidates(java.lang.StringBuilder msg, java.util.List<? extends Itemset> candidates, VectorFieldTypeInformation<BitVector> meta)	Debug method: output all itemsets.
private void	Eclat.extractItemsets(DBIDs[] idx, int start, int minsupp, java.util.List<Itemset> solution)
private void	Eclat.extractItemsets(DBIDs iset, DBIDs[] idx, int[] buf, int depth, int start, int minsupp, java.util.List<Itemset> solution)
protected java.util.List<? extends Itemset>	APRIORI.frequentItemsets(java.util.List<? extends Itemset> candidates, Relation<BitVector> relation, int needed, DBIDs ids, ArrayModifiableDBIDs survivors, int length)	Returns the frequent BitSets out of the given BitSets with respect to the given database.

Uses of Itemset in elki.itemsetmining.associationrules

Subclasses of Itemset in elki.itemsetmining.associationrules

Modifier and Type	Class	Description
protected static class	AssociationRuleGeneration.PartialItemset	Mutable scatch itemset for finding itemsets, based on SparseItemset.

Fields in elki.itemsetmining.associationrules declared as Itemset

Modifier and Type	Field	Description
private Itemset	AssociationRule.antecedent	Consequent itemset
private Itemset	AssociationRule.consequent	Consequent itemset
private Itemset	AssociationRule.union	Union of consequent and consequent

Fields in elki.itemsetmining.associationrules with type parameters of type Itemset

Modifier and Type	Field	Description
(package private) java.util.List<Itemset>	AssociationRuleGeneration.ItemsetSearcher.itemsets	Itemsets to search.

Methods in elki.itemsetmining.associationrules that return Itemset

Modifier and Type	Method	Description
Itemset	AssociationRule.getAntecedent()	Get the antecedent of the rule.
Itemset	AssociationRule.getConsequent()	Get the consequent of the rule.
Itemset	AssociationRule.getUnion()	Get the union of consequent and consequent of the rule.
Itemset	AssociationRuleGeneration.ItemsetSearcher.search(Itemset c)	Find an itemset, using binary search.

Methods in elki.itemsetmining.associationrules with parameters of type Itemset

Modifier and Type	Method	Description
private void	AssociationRuleGeneration.Instance.processSubsets(Itemset itemset, int len, int cur)
Itemset	AssociationRuleGeneration.ItemsetSearcher.search(Itemset c)	Find an itemset, using binary search.

Constructors in elki.itemsetmining.associationrules with parameters of type Itemset

Constructor	Description
AssociationRule(Itemset union, Itemset consequent, Itemset antecedent, double measure)	Constructor.

Constructor parameters in elki.itemsetmining.associationrules with type arguments of type Itemset

Constructor	Description
ItemsetSearcher(java.util.List<Itemset> itemsets)	Constructor.

Uses of Itemset in elki.result

Fields in elki.result with type parameters of type Itemset

Modifier and Type	Field	Description
private java.util.List<Itemset>	FrequentItemsetsResult.itemsets	The supports of all frequent itemsets.

Methods in elki.result that return types with arguments of type Itemset

Modifier and Type	Method	Description
java.util.List<Itemset>	FrequentItemsetsResult.getItemsets()	Returns the frequent item sets.

Constructor parameters in elki.result with type arguments of type Itemset

Constructor	Description
FrequentItemsetsResult(java.util.List<Itemset> itemsets, VectorFieldTypeInformation<BitVector> meta, int total)	Constructor.