org.apache.mahout.cf.taste.hadoop.similarity.item

Class ItemSimilarityJob.MostSimilarItemPairsReducer

java.lang.Object

org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.DoubleWritable,EntityEntityWritable,org.apache.hadoop.io.DoubleWritable>

org.apache.mahout.cf.taste.hadoop.similarity.item.ItemSimilarityJob.MostSimilarItemPairsReducer

Enclosing class:

ItemSimilarityJob

public static class ItemSimilarityJob.MostSimilarItemPairsReducer
extends org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.DoubleWritable,EntityEntityWritable,org.apache.hadoop.io.DoubleWritable>

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer

org.apache.hadoop.mapreduce.Reducer.Context

Constructor Summary

Constructors

Constructor and Description
ItemSimilarityJob.MostSimilarItemPairsReducer()

Method Summary

Methods

Modifier and Type	Method and Description
protected void	reduce(EntityEntityWritable pair, Iterable<org.apache.hadoop.io.DoubleWritable> 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

ItemSimilarityJob.MostSimilarItemPairsReducer

public ItemSimilarityJob.MostSimilarItemPairsReducer()

Method Detail

reduce

protected void reduce(EntityEntityWritable pair,
          Iterable<org.apache.hadoop.io.DoubleWritable> values,
          org.apache.hadoop.mapreduce.Reducer.Context ctx)
               throws IOException,
                      InterruptedException

Overrides:

reduce in class org.apache.hadoop.mapreduce.Reducer<EntityEntityWritable,org.apache.hadoop.io.DoubleWritable,EntityEntityWritable,org.apache.hadoop.io.DoubleWritable>

Throws:

IOException

InterruptedException