org.apache.mahout.clustering.lda.cvb

Class CachingCVB0PerplexityMapper

java.lang.Object

org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

org.apache.mahout.clustering.lda.cvb.CachingCVB0PerplexityMapper

public class CachingCVB0PerplexityMapper
extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	CachingCVB0PerplexityMapper.Counters Hadoop counters for CachingCVB0PerplexityMapper, to aid in debugging.

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

org.apache.hadoop.mapreduce.Mapper.Context

Constructor Summary

Constructors

Constructor and Description
CachingCVB0PerplexityMapper()

Method Summary

Modifier and Type	Method and Description
protected void	cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
void	map(org.apache.hadoop.io.IntWritable docId, VectorWritable document, org.apache.hadoop.mapreduce.Mapper.Context context)
protected void	setup(org.apache.hadoop.mapreduce.Mapper.Context context)

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

Constructor Detail

CachingCVB0PerplexityMapper

public CachingCVB0PerplexityMapper()

Method Detail

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.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Throws:

IOException

InterruptedException

cleanup

protected void cleanup(org.apache.hadoop.mapreduce.Mapper.Context context)
                throws IOException,
                       InterruptedException

Overrides:

cleanup in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Throws:

IOException

InterruptedException

map

public void map(org.apache.hadoop.io.IntWritable docId,
                VectorWritable document,
                org.apache.hadoop.mapreduce.Mapper.Context context)
         throws IOException,
                InterruptedException

Overrides:

map in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>

Throws:

IOException

InterruptedException