Package de.uni_mannheim.informatik.dws.melt.matching_jena_matchers.util

Enum SetSimilarity

java.lang.Object

java.lang.Enum<SetSimilarity>

de.uni_mannheim.informatik.dws.melt.matching_jena_matchers.util.SetSimilarity

All Implemented Interfaces:

Serializable, Comparable<SetSimilarity>, Constable

public enum SetSimilarity
extends Enum<SetSimilarity>

Different methods for set comparison like Overlap coefficient, Jaccard or Sørensen–Dice_coefficient (DSC).

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
ABSOLUTE	Returns absolute number of the intersection.
BOOLEAN	Returns 1 if intersection is not empty and 0 if it is empty.
DICE	Sørensen-Dice coefficient (DSC): twice the number of intersection set divided by the sum of the number of elements in each set.
JACCARD	Jaccard index: intersection divided by the size of the union.
MAX	The intersection divided by the larger of the size of the two sets.
MIN	The intersection divided by the smaller of the size of the two sets.

Constructor Summary

Constructors

Modifier	Constructor	Description
private	SetSimilarity()

Method Summary

Modifier and Type	Method	Description
double	compute(int sizeIntersection, int sizeX, int sizeY)	Compute the set comparison.
<E> double	compute(Set<E> x, Set<E> y)	Compute the set comparison.
static SetSimilarity	valueOf(String name)	Returns the enum constant of this type with the specified name.
static SetSimilarity[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

BOOLEAN

public static final SetSimilarity BOOLEAN

Returns 1 if intersection is not empty and 0 if it is empty.

ABSOLUTE

public static final SetSimilarity ABSOLUTE

Returns absolute number of the intersection. Not a real comparison.

MIN

public static final SetSimilarity MIN

The intersection divided by the smaller of the size of the two sets. Also known as Overlap coefficient.

MAX

public static final SetSimilarity MAX

The intersection divided by the larger of the size of the two sets.

JACCARD

public static final SetSimilarity JACCARD

Jaccard index: intersection divided by the size of the union.

DICE

public static final SetSimilarity DICE

Sørensen-Dice coefficient (DSC): twice the number of intersection set divided by the sum of the number of elements in each set.

Constructor Details

SetSimilarity

private SetSimilarity()

Method Details

values

public static SetSimilarity[] values()

Returns an array containing the constants of this enum type, in the order they are declared.

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static SetSimilarity valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

compute

public <E> double compute(Set<E> x, Set<E> y)

Compute the set comparison.

Type Parameters:

E - Generic type of the sets

Parameters:

x - set x

y - set y

Returns:

set comparison value

compute

public double compute(int sizeIntersection, int sizeX, int sizeY)

Compute the set comparison.

Parameters:

sizeIntersection - the number of intersection of the two sets

sizeX - size of set x

sizeY - size of set y

Returns:

set comparison value