org.apache.mahout.cf.taste.hadoop.slopeone
Class SlopeOneDiffsToAveragesReducer

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.FloatWritable,EntityEntityWritable,FullRunningAverageAndStdDevWritable>
      extended by org.apache.mahout.cf.taste.hadoop.slopeone.SlopeOneDiffsToAveragesReducer

public final class SlopeOneDiffsToAveragesReducer
extends org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.FloatWritable,EntityEntityWritable,FullRunningAverageAndStdDevWritable>


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer
org.apache.hadoop.mapreduce.Reducer.Context
 
Constructor Summary
SlopeOneDiffsToAveragesReducer()
           
 
Method Summary
protected  void reduce(EntityEntityWritable key, Iterable<org.apache.hadoop.io.FloatWritable> values, org.apache.hadoop.mapreduce.Reducer.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Reducer
cleanup, run, setup
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SlopeOneDiffsToAveragesReducer

public SlopeOneDiffsToAveragesReducer()
Method Detail

reduce

protected void reduce(EntityEntityWritable key,
                      Iterable<org.apache.hadoop.io.FloatWritable> values,
                      org.apache.hadoop.mapreduce.Reducer.Context context)
               throws IOException,
                      InterruptedException
Overrides:
reduce in class org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.FloatWritable,EntityEntityWritable,FullRunningAverageAndStdDevWritable>
Throws:
IOException
InterruptedException


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