org.apache.mahout.math.als
Class ImplicitFeedbackAlternatingLeastSquaresSolver

java.lang.Object
  extended by org.apache.mahout.math.als.ImplicitFeedbackAlternatingLeastSquaresSolver

public class ImplicitFeedbackAlternatingLeastSquaresSolver
extends Object

see Collaborative Filtering for Implicit Feedback Datasets


Constructor Summary
ImplicitFeedbackAlternatingLeastSquaresSolver(int numFeatures, double lambda, double alpha, org.apache.mahout.math.map.OpenIntObjectHashMap Y)
           
 
Method Summary
protected  double confidence(double rating)
           
 Vector solve(Vector ratings)
           
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

ImplicitFeedbackAlternatingLeastSquaresSolver

public ImplicitFeedbackAlternatingLeastSquaresSolver(int numFeatures,
                                                     double lambda,
                                                     double alpha,
                                                     org.apache.mahout.math.map.OpenIntObjectHashMap Y)
Method Detail

solve

public Vector solve(Vector ratings)

confidence

protected double confidence(double rating)


Copyright © 2008-2012 The Apache Software Foundation. All Rights Reserved.