org.apache.mahout.clustering.dirichlet
Class DirichletMapper

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>
      extended by org.apache.mahout.clustering.dirichlet.DirichletMapper

public class DirichletMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,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
 
Constructor Summary
DirichletMapper()
           
 
Method Summary
static DirichletState getDirichletState(org.apache.hadoop.conf.Configuration conf)
           
protected static DirichletState loadState(org.apache.hadoop.conf.Configuration conf, String statePath, DistributionDescription description, double alpha, int k)
           
protected  void map(org.apache.hadoop.io.WritableComparable<?> key, VectorWritable v, org.apache.hadoop.mapreduce.Mapper.Context context)
           
 void setup(DirichletState state)
           
protected  void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
           
 
Methods inherited from class org.apache.hadoop.mapreduce.Mapper
cleanup, run
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DirichletMapper

public DirichletMapper()
Method Detail

map

protected void map(org.apache.hadoop.io.WritableComparable<?> key,
                   VectorWritable v,
                   org.apache.hadoop.mapreduce.Mapper.Context context)
            throws IOException,
                   InterruptedException
Overrides:
map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.WritableComparable<?>,VectorWritable,org.apache.hadoop.io.Text,VectorWritable>
Throws:
IOException
InterruptedException

setup

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

setup

public void setup(DirichletState state)

getDirichletState

public static DirichletState getDirichletState(org.apache.hadoop.conf.Configuration conf)

loadState

protected static DirichletState loadState(org.apache.hadoop.conf.Configuration conf,
                                          String statePath,
                                          DistributionDescription description,
                                          double alpha,
                                          int k)


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