org.apache.mahout.classifier.naivebayes.training
Class ThetaMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>
      extended by org.apache.mahout.classifier.naivebayes.training.ThetaMapper

public class ThetaMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>


Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper
org.apache.hadoop.mapreduce.Mapper.Context
 
Field Summary
static String ALPHA_I
           
 
Constructor Summary
ThetaMapper()
           
 
Method Summary
protected  void cleanup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
protected  void map(org.apache.hadoop.io.IntWritable key, VectorWritable value, org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
protected  void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
run
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

ALPHA_I

public static final String ALPHA_I
Constructor Detail

ThetaMapper

public ThetaMapper()
Method Detail

setup

protected void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
              throws IOException,
                     InterruptedException
Overrides:
setup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>
Throws:
IOException
InterruptedException

map

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

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
                throws IOException,
                       InterruptedException
Overrides:
cleanup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>
Throws:
IOException
InterruptedException


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