edu.uci.ics.jung.algorithms.scoring
Class EigenvectorCentrality<V,E>

java.lang.Object
  edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorer<V,E,S>
      edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorerWithPriors<V,E,Double>
          edu.uci.ics.jung.algorithms.scoring.PageRankWithPriors<V,E>
              edu.uci.ics.jung.algorithms.scoring.PageRank<V,E>
                  edu.uci.ics.jung.algorithms.scoring.EigenvectorCentrality<V,E>

All Implemented Interfaces:

VertexScorer<V,Double>, IterativeContext

public class EigenvectorCentrality<V,E>
extends PageRank<V,E>

Calculates eigenvector centrality for each vertex in the graph. The 'eigenvector centrality' for a vertex is defined as the fraction of time that a random walk(er) will spend at that vertex over an infinite time horizon. Assumes that the graph is strongly connected.

Field Summary

Fields inherited from class edu.uci.ics.jung.algorithms.scoring.PageRankWithPriors

disappearing_potential

Fields inherited from class edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorerWithPriors

alpha, vertex_priors

Fields inherited from class edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorer

edge_weights, graph, hyperedges_are_self_loops, max_delta, max_iterations, output_reversed, tolerance, total_iterations

Constructor Summary

EigenvectorCentrality(Hypergraph<V,E> graph)
Creates an instance with the specified graph and default edge weights.

EigenvectorCentrality(Hypergraph<V,E> graph, org.apache.commons.collections15.Transformer<E,? extends Number> edge_weights)
Creates an instance with the specified graph and edge weights.

Method Summary

Methods inherited from class edu.uci.ics.jung.algorithms.scoring.PageRankWithPriors

afterStep, collectDisappearingPotential, update

Methods inherited from class edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorerWithPriors

getAlpha, getVertexPrior, getVertexPriors, initialize

Methods inherited from class edu.uci.ics.jung.algorithms.scoring.AbstractIterativeScorer

acceptDisconnectedGraph, done, evaluate, getAdjustedIncidentCount, getCurrentValue, getEdgeWeight, getEdgeWeights, getIterations, getMaxIterations, getOutputValue, getTolerance, getVertexScore, isDisconnectedGraphOK, setCurrentValue, setEdgeWeights, setHyperedgesAreSelfLoops, setMaxIterations, setOutputValue, setTolerance, step, swapOutputForCurrent, updateMaxDelta

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface edu.uci.ics.jung.algorithms.scoring.VertexScorer

getVertexScore

Constructor Detail

EigenvectorCentrality

public EigenvectorCentrality(Hypergraph<V,E> graph,
                             org.apache.commons.collections15.Transformer<E,? extends Number> edge_weights)

Creates an instance with the specified graph and edge weights. The outgoing edge weights for each edge must sum to 1. (See UniformDegreeWeight for one way to handle this for undirected graphs.)

Parameters:

graph - the graph for which the centrality is to be calculated

edge_weights - the edge weights

EigenvectorCentrality

public EigenvectorCentrality(Hypergraph<V,E> graph)

Creates an instance with the specified graph and default edge weights. (Default edge weights: UniformDegreeWeight.)

Parameters:

graph - the graph for which the centrality is to be calculated.