org.apache.mahout.math.hadoop.similarity.cooccurrence.measures
Class PearsonCorrelationSimilarity

java.lang.Object
  extended by org.apache.mahout.math.hadoop.similarity.cooccurrence.measures.CosineSimilarity
      extended by org.apache.mahout.math.hadoop.similarity.cooccurrence.measures.PearsonCorrelationSimilarity
All Implemented Interfaces:
VectorSimilarityMeasure

public class PearsonCorrelationSimilarity
extends CosineSimilarity


Field Summary
 
Fields inherited from interface org.apache.mahout.math.hadoop.similarity.cooccurrence.measures.VectorSimilarityMeasure
NO_NORM
 
Constructor Summary
PearsonCorrelationSimilarity()
           
 
Method Summary
 Vector normalize(Vector vector)
           
 
Methods inherited from class org.apache.mahout.math.hadoop.similarity.cooccurrence.measures.CosineSimilarity
aggregate, consider, norm, similarity
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

PearsonCorrelationSimilarity

public PearsonCorrelationSimilarity()
Method Detail

normalize

public Vector normalize(Vector vector)
Specified by:
normalize in interface VectorSimilarityMeasure
Overrides:
normalize in class CosineSimilarity


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