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

java.lang.Object
  extended by org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.IntWritable,VectorWritable,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.DoubleWritable>
      extended by 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
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
CachingCVB0PerplexityMapper()
           
 
Method Summary
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


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