org.apache.mahout.math.stats.entropy
Class SpecificConditionalEntropyMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<StringTuple,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>
      extended by org.apache.mahout.math.stats.entropy.SpecificConditionalEntropyMapper

public class SpecificConditionalEntropyMapper
extends org.apache.hadoop.mapreduce.Mapper<StringTuple,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>

Converts the key from StringTuple with values [key, value] to Text with value key.


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Constructor Summary
SpecificConditionalEntropyMapper()
           
 
Method Summary
protected  void map(StringTuple key, VarIntWritable value, org.apache.hadoop.mapreduce.Mapper.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
cleanup, run, setup
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

SpecificConditionalEntropyMapper

public SpecificConditionalEntropyMapper()
Method Detail

map

protected void map(StringTuple key,
                   VarIntWritable value,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<StringTuple,VarIntWritable,org.apache.hadoop.io.Text,VarIntWritable>
Throws:
IOException
InterruptedException


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