Uses of Class
de.lmu.ifi.dbs.elki.algorithm.itemsetmining.Itemset

Packages that use Itemset

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

Uses of Itemset in de.lmu.ifi.dbs.elki.algorithm.itemsetmining

Subclasses of Itemset in de.lmu.ifi.dbs.elki.algorithm.itemsetmining

Modifier and Type	Class and 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 de.lmu.ifi.dbs.elki.algorithm.itemsetmining that return types with arguments of type Itemset

Modifier and Type	Method and 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 de.lmu.ifi.dbs.elki.algorithm.itemsetmining with parameters of type Itemset

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

Method parameters in de.lmu.ifi.dbs.elki.algorithm.itemsetmining with type arguments of type Itemset

Modifier and Type	Method and 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 de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules

Subclasses of Itemset in de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules

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

Fields in de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules declared as Itemset

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

Fields in de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules with type parameters of type Itemset

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

Methods in de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules that return Itemset

Modifier and Type	Method and 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 de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules with parameters of type Itemset

Modifier and Type	Method and 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 de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules with parameters of type Itemset

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

Constructor parameters in de.lmu.ifi.dbs.elki.algorithm.itemsetmining.associationrules with type arguments of type Itemset

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

Uses of Itemset in de.lmu.ifi.dbs.elki.result

Fields in de.lmu.ifi.dbs.elki.result with type parameters of type Itemset

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

Methods in de.lmu.ifi.dbs.elki.result that return types with arguments of type Itemset

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

Constructor parameters in de.lmu.ifi.dbs.elki.result with type arguments of type Itemset

Constructor and Description
FrequentItemsetsResult(java.lang.String name, java.lang.String shortname, java.util.List<Itemset> itemsets, VectorFieldTypeInformation<BitVector> meta, int total) Constructor.