org.apache.mahout.cf.taste.hadoop.item
Class UserVectorToCooccurrenceReducer

java.lang.Object
  extended by org.apache.hadoop.mapred.MapReduceBase
      extended by org.apache.mahout.cf.taste.hadoop.item.UserVectorToCooccurrenceReducer
All Implemented Interfaces:
java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,VectorWritable>

public final class UserVectorToCooccurrenceReducer
extends org.apache.hadoop.mapred.MapReduceBase
implements org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,VectorWritable>


Constructor Summary
UserVectorToCooccurrenceReducer()
           
 
Method Summary
 void reduce(org.apache.hadoop.io.IntWritable index1, java.util.Iterator<org.apache.hadoop.io.IntWritable> index2s, org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,VectorWritable> output, org.apache.hadoop.mapred.Reporter reporter)
           
 
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase
close, configure
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface org.apache.hadoop.mapred.JobConfigurable
configure
 
Methods inherited from interface java.io.Closeable
close
 

Constructor Detail

UserVectorToCooccurrenceReducer

public UserVectorToCooccurrenceReducer()
Method Detail

reduce

public void reduce(org.apache.hadoop.io.IntWritable index1,
                   java.util.Iterator<org.apache.hadoop.io.IntWritable> index2s,
                   org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.IntWritable,VectorWritable> output,
                   org.apache.hadoop.mapred.Reporter reporter)
            throws java.io.IOException
Specified by:
reduce in interface org.apache.hadoop.mapred.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.IntWritable,VectorWritable>
Throws:
java.io.IOException


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