org.apache.mahout.cf.taste.hadoop.als
Class PredictionJob.PredictRatingReducer

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Reducer<TaggedVarIntWritable,VectorWithIndexWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
      extended by org.apache.mahout.cf.taste.hadoop.als.PredictionJob.PredictRatingReducer
Enclosing class:
PredictionJob

public static class PredictionJob.PredictRatingReducer
extends org.apache.hadoop.mapreduce.Reducer<TaggedVarIntWritable,VectorWithIndexWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer
org.apache.hadoop.mapreduce.Reducer.Context
 
Constructor Summary
PredictionJob.PredictRatingReducer()
           
 
Method Summary
protected  void reduce(TaggedVarIntWritable key, Iterable<VectorWithIndexWritable> values, org.apache.hadoop.mapreduce.Reducer.Context ctx)
           
 
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

PredictionJob.PredictRatingReducer

public PredictionJob.PredictRatingReducer()
Method Detail

reduce

protected void reduce(TaggedVarIntWritable key,
                      Iterable<VectorWithIndexWritable> values,
                      org.apache.hadoop.mapreduce.Reducer.Context ctx)
               throws IOException,
                      InterruptedException
Overrides:
reduce in class org.apache.hadoop.mapreduce.Reducer<TaggedVarIntWritable,VectorWithIndexWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.NullWritable>
Throws:
IOException
InterruptedException


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