org.apache.mahout.clustering.lda
Class LDAReducer
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<IntPairWritable,org.apache.hadoop.io.DoubleWritable,IntPairWritable,org.apache.hadoop.io.DoubleWritable>
org.apache.mahout.clustering.lda.LDAReducer
public class LDAReducer
- extends org.apache.hadoop.mapreduce.Reducer<IntPairWritable,org.apache.hadoop.io.DoubleWritable,IntPairWritable,org.apache.hadoop.io.DoubleWritable>
A very simple reducer which simply logSums the input doubles and outputs a new double for sufficient
statistics, and sums log likelihoods.
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer |
org.apache.hadoop.mapreduce.Reducer.Context |
Method Summary |
void |
reduce(IntPairWritable topicWord,
java.lang.Iterable<org.apache.hadoop.io.DoubleWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
|
Methods inherited from class org.apache.hadoop.mapreduce.Reducer |
cleanup, run, setup |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
LDAReducer
public LDAReducer()
reduce
public void reduce(IntPairWritable topicWord,
java.lang.Iterable<org.apache.hadoop.io.DoubleWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
throws java.io.IOException,
java.lang.InterruptedException
- Overrides:
reduce
in class org.apache.hadoop.mapreduce.Reducer<IntPairWritable,org.apache.hadoop.io.DoubleWritable,IntPairWritable,org.apache.hadoop.io.DoubleWritable>
- Throws:
java.io.IOException
java.lang.InterruptedException
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