org.apache.ctakes.ytex.kernel.pagerank

Interface PageRankService

All Known Implementing Classes:

PageRankServiceImpl

public interface PageRankService

Method Summary

Methods

Modifier and Type	Method and Description
double[]	rank(java.util.Map<java.lang.String,java.lang.Double> dampingVector, ConceptGraph cg) call rank() with default values for iter (30), threshold(1e-4), dampingFactor(0.85)
double[]	rank(java.util.Map<java.lang.String,java.lang.Double> dampingVector, ConceptGraph cg, int iter, double threshold, double dampingFactor) PageRank for conceptGraph.
double[]	rank2(java.util.Map<java.lang.Integer,java.lang.Double> dampingVector, ConceptGraph cg, int iter, double threshold, double dampingFactor)
double	sim(java.lang.String concept1, java.lang.String concept2, ConceptGraph cg, int iter, double threshold, double dampingFactor)

Method Detail

rank

double[] rank(java.util.Map<java.lang.String,java.lang.Double> dampingVector,
            ConceptGraph cg,
            int iter,
            double threshold,
            double dampingFactor)

PageRank for conceptGraph. Page = concept. in-links = parents. out-links = children.

Parameters:

dampingVector - topic vector/personalized pagerank vector. If null will use normal pagerank with a damping vector where every value is 1/N

cg - concept graph

iter - max number of iterations

threshold - convergence threshold

dampingFactor -

Returns:

pageRank 'vector'. key = concept (page), value = rank

rank

double[] rank(java.util.Map<java.lang.String,java.lang.Double> dampingVector,
            ConceptGraph cg)

call rank() with default values for iter (30), threshold(1e-4), dampingFactor(0.85)

Parameters:

dampingVector -

cg -

Returns:

sim

double sim(java.lang.String concept1,
         java.lang.String concept2,
         ConceptGraph cg,
         int iter,
         double threshold,
         double dampingFactor)

rank2

double[] rank2(java.util.Map<java.lang.Integer,java.lang.Double> dampingVector,
             ConceptGraph cg,
             int iter,
             double threshold,
             double dampingFactor)