weka.distributed.hadoop

Class WekaFoldBasedClassifierHadoopMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text,org.apache.hadoop.io.BytesWritable>

weka.distributed.hadoop.WekaClassifierHadoopMapper

weka.distributed.hadoop.WekaFoldBasedClassifierHadoopMapper

public class WekaFoldBasedClassifierHadoopMapper
extends WekaClassifierHadoopMapper

Mapper implementation for the model-building phase of the evaluation job. Subclasses WekaClassifierHadoopMapper in order to build multiple models - one for each fold.

Version:

$Revision: 12439 $

Author:

Mark Hall (mhall{[at]}pentaho{[dot]}com)

Nested Class Summary

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

org.apache.hadoop.mapreduce.Mapper.Context

Field Summary

Fields inherited from class weka.distributed.hadoop.WekaClassifierHadoopMapper

CLASSIFIER_MAP_TASK_OPTIONS

Constructor Summary

Constructors

Constructor and Description
WekaFoldBasedClassifierHadoopMapper()

Method Summary

Modifier and Type	Method and Description
void	cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

Methods inherited from class weka.distributed.hadoop.WekaClassifierHadoopMapper

map, setClassIndex, setClassIndex

Methods inherited from class org.apache.hadoop.mapreduce.Mapper

run

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

WekaFoldBasedClassifierHadoopMapper

public WekaFoldBasedClassifierHadoopMapper()

Method Detail

setup

public void setup(org.apache.hadoop.mapreduce.Mapper.Context context)
           throws java.io.IOException

Overrides:

setup in class WekaClassifierHadoopMapper

Throws:

java.io.IOException

cleanup

public void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
             throws java.io.IOException,
                    java.lang.InterruptedException

Overrides:

cleanup in class WekaClassifierHadoopMapper

Throws:

java.io.IOException

java.lang.InterruptedException