Package it.unimi.dsi.webgraph.algo

Enum TopKGeometricCentrality.Centrality

java.lang.Object

java.lang.Enum<TopKGeometricCentrality.Centrality>

it.unimi.dsi.webgraph.algo.TopKGeometricCentrality.Centrality

All Implemented Interfaces:

Serializable, Comparable<TopKGeometricCentrality.Centrality>, java.lang.constant.Constable

Enclosing class:

TopKGeometricCentrality

public static enum TopKGeometricCentrality.Centrality
extends Enum<TopKGeometricCentrality.Centrality>

The centralities with respect to which it is possible to find the top k nodes.

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
EXPONENTIAL	Exponential Centrality: eα(x) = ∑y αd(x,y) for some real number α ∈ (0..1).
HARMONIC	Harmonic Centrality: h(x) = ∑y ≠ x 1 ⁄ d(x,y).
LIN	Lin's Centrality: ℓ(x) = |R(x)|2 ⁄ ∑y∈R(x) d(x,y), where R(x) is the set of nodes reachable from x.

Method Summary

Modifier and Type	Method	Description
static TopKGeometricCentrality.Centrality	valueOf(String name)	Returns the enum constant of this type with the specified name.
static TopKGeometricCentrality.Centrality[]	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

LIN

public static final TopKGeometricCentrality.Centrality LIN

Lin's Centrality: ℓ(x) = |R(x)|² ⁄ ∑_y∈R(x) d(x,y), where R(x) is the set of nodes reachable from x. Note that for a strongly connected graph Lin's centrality is exactly Bavelas's closeness centrality, that is, 1 ⁄ ∑_yd(x, y), multiplied by the square of the number of nodes.

HARMONIC

public static final TopKGeometricCentrality.Centrality HARMONIC

Harmonic Centrality: h(x) = ∑_{y ≠ x} 1 ⁄ d(x,y).

EXPONENTIAL

public static final TopKGeometricCentrality.Centrality EXPONENTIAL

Exponential Centrality: e_α(x) = ∑_y α^d(x,y) for some real number α ∈ (0..1).

Method Details

values

public static TopKGeometricCentrality.Centrality[] 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 TopKGeometricCentrality.Centrality 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