Example usage for org.apache.mahout.clustering.iterator ClusterWritable getValue

Introduction

In this page you can find the example usage for org.apache.mahout.clustering.iterator ClusterWritable getValue.

Prototype

public Cluster getValue() 

Source Link

Usage

From source file:DisplayClustering.java

License:Apache License

protected static List<Cluster> readClustersWritable(Path clustersIn) {
    List<Cluster> clusters = Lists.newArrayList();
    Configuration conf = new Configuration();
    for (ClusterWritable value : new SequenceFileDirValueIterable<ClusterWritable>(clustersIn, PathType.LIST,
            PathFilters.logsCRCFilter(), conf)) {
        Cluster cluster = value.getValue();
        log.info("Reading Cluster:{} center:{} numPoints:{} radius:{}", cluster.getId(),
                AbstractCluster.formatVector(cluster.getCenter(), null), cluster.getNumObservations(),
                AbstractCluster.formatVector(cluster.getRadius(), null));
        clusters.add(cluster);/*from   w  ww.j av  a  2  s.  c  o  m*/
    }
    return clusters;
}

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From source file:com.modofo.molo.cluster.DisplayClustering.java

License:Apache License

protected static List<Cluster> readClustersWritable(Path clustersIn) {
    List<Cluster> clusters = Lists.newArrayList();
    Configuration conf = new Configuration();
    for (ClusterWritable value : new SequenceFileDirValueIterable<ClusterWritable>(clustersIn, PathType.LIST,
            PathFilters.logsCRCFilter(), conf)) {
        Cluster cluster = value.getValue();
        log.info("Reading Cluster:{} center:{} numPoints:{} radius:{}",
                new Object[] { cluster.getId(), AbstractCluster.formatVector(cluster.getCenter(), null),
                        cluster.getNumObservations(),
                        AbstractCluster.formatVector(cluster.getRadius(), null) });
        clusters.add(cluster);/*ww  w  . j a  v  a  2  s  .co m*/
    }
    return clusters;
}

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From source file:org.conan.mymahout.clustering.streaming.tools.IOUtils.java

License:Apache License

/**
 * Converts CentroidWritable values in a sequence file into Centroids lazily.
 * @param dirIterable the source iterable (comes from a SequenceFileDirIterable).
 * @return an Iterable<Centroid> with the converted vectors.
 *//*from w ww .ja  v a 2 s  .c  om*/
public static Iterable<Centroid> getCentroidsFromClusterWritableIterable(
        Iterable<ClusterWritable> dirIterable) {
    return Iterables.transform(dirIterable, new Function<ClusterWritable, Centroid>() {
        int numClusters = 0;

        @Override
        public Centroid apply(ClusterWritable input) {
            Preconditions.checkNotNull(input);
            return new Centroid(numClusters++, input.getValue().getCenter().clone(),
                    input.getValue().getTotalObservations());
        }
    });
}

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From source file:sample.DisplayClustering.java

License:Apache License

protected static List<Cluster> readClustersWritable(Path clustersIn) {
    List<Cluster> clusters = new ArrayList<>();
    Configuration conf = new Configuration();
    for (ClusterWritable value : new SequenceFileDirValueIterable<ClusterWritable>(clustersIn, PathType.LIST,
            PathFilters.logsCRCFilter(), conf)) {
        Cluster cluster = value.getValue();
        System.out.println("Cluster: " + cluster.getId() + " "
                + AbstractCluster.formatVector(cluster.getCenter(), null) + " " + cluster.getNumObservations()
                + " " + AbstractCluster.formatVector(cluster.getRadius(), null));
        clusters.add(cluster);/*from  ww w  .j a v  a 2s.  c o  m*/
    }
    return clusters;
}

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From source file:utils.ReaderSeqFile.java

public static void main(String[] args) throws IOException, URISyntaxException {

    //URI uri = new URI("/home/asabater/data_to_cluster");
    URI uri = new URI("/home/asabater/Desktop/part-r-00000");
    Configuration conf = new Configuration();
    FileSystem fs = FileSystem.get(uri, conf);
    Path path = new Path(uri);
    FileOutputStream out = new FileOutputStream("/home/asabater/nuevo/cluster");
    SequenceFile.Reader reader = null;
    try {//ww w.  j a  v a  2 s.  com
        reader = new SequenceFile.Reader(fs, path, conf);
        Writable key = (Writable) ReflectionUtils.newInstance(reader.getKeyClass(), conf);
        ClusterWritable value = (ClusterWritable)
        //final WeightedPropertyVectorWritable value = new WeightedPropertyVectorWritable();
        ReflectionUtils.newInstance(reader.getValueClass(), conf);
        long position = reader.getPosition();
        System.out.println("TRYING:" + reader.getPosition());
        while (reader.next(key, value)) {
            System.out.println(value.getClass());
            System.out.printf("%s\t%s\n", key, value.getValue().toString());
            position = reader.getPosition(); // beginning of next record
        }
        out.close();
    } finally {
        IOUtils.closeStream(reader);
    }
}

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