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java.lang.Objectorg.apache.mahout.clustering.ClusterIterator
public class ClusterIterator
This is an experimental clustering iterator which works with a ClusteringPolicy and a prior ClusterClassifier which has been initialized with a set of models. To date, it has been tested with k-means and Dirichlet clustering. See examples DisplayKMeans and DisplayDirichlet which have been switched over to use it.
Constructor Summary | |
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ClusterIterator(ClusteringPolicy policy)
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Method Summary | |
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ClusterClassifier |
iterate(Iterable<Vector> data,
ClusterClassifier classifier,
int numIterations)
Iterate over data using a prior-trained ClusterClassifier, for a number of iterations |
static void |
iterateMR(org.apache.hadoop.fs.Path inPath,
org.apache.hadoop.fs.Path priorPath,
org.apache.hadoop.fs.Path outPath,
int numIterations)
Iterate over data using a prior-trained ClusterClassifier, for a number of iterations using a mapreduce implementation |
void |
iterateSeq(org.apache.hadoop.fs.Path inPath,
org.apache.hadoop.fs.Path priorPath,
org.apache.hadoop.fs.Path outPath,
int numIterations)
Iterate over data using a prior-trained ClusterClassifier, for a number of iterations using a sequential implementation |
static ClusterClassifier |
readClassifier(org.apache.hadoop.fs.Path inPath)
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static void |
writeClassifier(ClusterClassifier classifier,
org.apache.hadoop.fs.Path outPath,
String k)
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Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ClusterIterator(ClusteringPolicy policy)
Method Detail |
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public ClusterClassifier iterate(Iterable<Vector> data, ClusterClassifier classifier, int numIterations)
data
- a List<Vector>
of input vectorsclassifier
- a prior ClusterClassifiernumIterations
- the int number of iterations to perform
public void iterateSeq(org.apache.hadoop.fs.Path inPath, org.apache.hadoop.fs.Path priorPath, org.apache.hadoop.fs.Path outPath, int numIterations) throws IOException
inPath
- a Path to input VectorWritablespriorPath
- a Path to the prior classifieroutPath
- a Path of output directorynumIterations
- the int number of iterations to perform
IOException
public static void iterateMR(org.apache.hadoop.fs.Path inPath, org.apache.hadoop.fs.Path priorPath, org.apache.hadoop.fs.Path outPath, int numIterations) throws IOException, InterruptedException, ClassNotFoundException
inPath
- a Path to input VectorWritablespriorPath
- a Path to the prior classifieroutPath
- a Path of output directorynumIterations
- the int number of iterations to perform
IOException
InterruptedException
ClassNotFoundException
public static void writeClassifier(ClusterClassifier classifier, org.apache.hadoop.fs.Path outPath, String k) throws IOException
IOException
public static ClusterClassifier readClassifier(org.apache.hadoop.fs.Path inPath) throws IOException
IOException
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