org.apache.mahout.vectorizer.term
Class TermDocumentCountReducer
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>
org.apache.mahout.vectorizer.term.TermDocumentCountReducer
public class TermDocumentCountReducer
- extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>
Can also be used as a local Combiner. This accumulates all the features and the weights and sums them up.
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer |
org.apache.hadoop.mapreduce.Reducer.Context |
Method Summary |
protected void |
reduce(org.apache.hadoop.io.IntWritable key,
Iterable<org.apache.hadoop.io.LongWritable> 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 |
TermDocumentCountReducer
public TermDocumentCountReducer()
reduce
protected void reduce(org.apache.hadoop.io.IntWritable key,
Iterable<org.apache.hadoop.io.LongWritable> values,
org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
reduce
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.IntWritable,org.apache.hadoop.io.LongWritable>
- Throws:
IOException
InterruptedException
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