org.apache.mahout.classifier.bayes.mapreduce.common
Class BayesFeatureReducer
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
org.apache.mahout.classifier.bayes.mapreduce.common.BayesFeatureReducer
- All Implemented Interfaces:
- Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
public class BayesFeatureReducer
- extends org.apache.hadoop.mapred.MapReduceBase
- implements org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
Can also be used as a local Combiner. A simple summing reducer
Method Summary |
void |
configure(org.apache.hadoop.mapred.JobConf job)
|
void |
reduce(StringTuple key,
Iterator<org.apache.hadoop.io.DoubleWritable> values,
org.apache.hadoop.mapred.OutputCollector<StringTuple,org.apache.hadoop.io.DoubleWritable> output,
org.apache.hadoop.mapred.Reporter reporter)
|
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase |
close |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
BayesFeatureReducer
public BayesFeatureReducer()
reduce
public void reduce(StringTuple key,
Iterator<org.apache.hadoop.io.DoubleWritable> values,
org.apache.hadoop.mapred.OutputCollector<StringTuple,org.apache.hadoop.io.DoubleWritable> output,
org.apache.hadoop.mapred.Reporter reporter)
throws IOException
- Specified by:
reduce
in interface org.apache.hadoop.mapred.Reducer<StringTuple,org.apache.hadoop.io.DoubleWritable,StringTuple,org.apache.hadoop.io.DoubleWritable>
- Throws:
IOException
configure
public void configure(org.apache.hadoop.mapred.JobConf job)
- Specified by:
configure
in interface org.apache.hadoop.mapred.JobConfigurable
- Overrides:
configure
in class org.apache.hadoop.mapred.MapReduceBase
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