org.apache.mahout.clustering.streaming.mapreduce
Class StreamingKMeansReducer
java.lang.Object
org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,CentroidWritable,org.apache.hadoop.io.IntWritable,CentroidWritable>
org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansReducer
public class StreamingKMeansReducer
- extends org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,CentroidWritable,org.apache.hadoop.io.IntWritable,CentroidWritable>
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Reducer |
org.apache.hadoop.mapreduce.Reducer.Context |
Methods inherited from class org.apache.hadoop.mapreduce.Reducer |
cleanup, run |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
StreamingKMeansReducer
public StreamingKMeansReducer()
setup
public void setup(org.apache.hadoop.mapreduce.Reducer.Context context)
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,CentroidWritable,org.apache.hadoop.io.IntWritable,CentroidWritable>
reduce
public void reduce(org.apache.hadoop.io.IntWritable key,
Iterable<CentroidWritable> centroids,
org.apache.hadoop.mapreduce.Reducer.Context context)
throws IOException,
InterruptedException
- Overrides:
reduce
in class org.apache.hadoop.mapreduce.Reducer<org.apache.hadoop.io.IntWritable,CentroidWritable,org.apache.hadoop.io.IntWritable,CentroidWritable>
- Throws:
IOException
InterruptedException
centroidWritablesToList
public static List<Centroid> centroidWritablesToList(Iterable<CentroidWritable> centroids)
getBestCentroids
public static Iterable<Vector> getBestCentroids(List<Centroid> centroids,
org.apache.hadoop.conf.Configuration conf)
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