Package de.uni_trier.wi2.procake.similarity.base.aggregate

Interface SMAggregateKMinimum

All Superinterfaces:

SimilarityMeasure, SMAggregate, SMAggregateWeighted

All Known Implementing Classes:

SMAggregateKMinimumImpl

public interface SMAggregateKMinimum
extends SMAggregateWeighted

The k-minimum aggregation is a generalization of the standard minimum aggregation. The k lowest local similarity value determines the global similarity. Hence, if k out of n attributes indicate a low utility, the overall utility for the whole case is low.

Φ(s₁, …, s_i) = maxⁿ_ik (ω_i · s_ik) with (ω_i · s_ik) ≤ (ω_i · s_ik)

Field Summary

Fields

Modifier and Type	Field	Description
static final int	DEFAULT_K	Default k value is 1.
static final String	NAME	Name of similarity measure is "AggregateKMinimum".

Fields inherited from interface de.uni_trier.wi2.procake.similarity.SimilarityMeasure

LOG_ORDER_NAME_NOT_FOUND

Fields inherited from interface de.uni_trier.wi2.procake.similarity.base.aggregate.SMAggregate

DEFAULT_IGNORE_NULL_ATTRIBUTES_IN_QUERY, LOG_ATTRIBUTE_NAME_NOT_FOUND, LOG_ATTRIBUTE_NOT_FOUND, PROPERTY_USER_WEIGHT

Fields inherited from interface de.uni_trier.wi2.procake.similarity.base.aggregate.SMAggregateWeighted

DEFAULT_WEIGHT

Method Summary

Modifier and Type	Method	Description
int	getK()
void	setK(int k)	To use the k-Maximum Aggregation it is necessary to set the k value.

Methods inherited from interface de.uni_trier.wi2.procake.similarity.SimilarityMeasure

compute, getDataClass, getName, getSystemName, isForceOverride, isReusable, setForceOverride

Methods inherited from interface de.uni_trier.wi2.procake.similarity.base.aggregate.SMAggregate

isIgnoreNullAttributesInQuery, setIgnoreNullAttributesInQuery

Methods inherited from interface de.uni_trier.wi2.procake.similarity.base.aggregate.SMAggregateWeighted

getDefaultWeight, getWeight, setDefaultWeight, setWeight

Field Details

NAME

static final String NAME

Name of similarity measure is "AggregateKMinimum".

See Also:

• Constant Field Values

DEFAULT_K

static final int DEFAULT_K

Default k value is 1.

See Also:

• Constant Field Values

Method Details

getK

int getK()

setK

void setK(int k)

To use the k-Maximum Aggregation it is necessary to set the k value. k