本文整理汇总了Java中org.apache.mahout.clustering.classify.WeightedVectorWritable类的典型用法代码示例。如果您正苦于以下问题：Java WeightedVectorWritable类的具体用法？Java WeightedVectorWritable怎么用？Java WeightedVectorWritable使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
WeightedVectorWritable类属于org.apache.mahout.clustering.classify包，在下文中一共展示了WeightedVectorWritable类的6个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: process
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
/**
* This method takes the clustered points output by the clustering algorithms as input and writes them into
* their respective clusters.
*/
public void process() throws IOException {
createPostProcessDirectory();
for (Pair<?,WeightedVectorWritable> record :
new SequenceFileDirIterable<Writable,WeightedVectorWritable>(clusteredPoints,
PathType.GLOB,
PathFilters.partFilter(),
null,
false,
conf)) {
String clusterId = record.getFirst().toString().trim();
putVectorInRespectiveCluster(clusterId, record.getSecond());
}
IOUtils.close(writersForClusters.values());
writersForClusters.clear();
}
示例2: clusterDataMR
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
/**
* Cluster the data using Hadoop
*/
private static void clusterDataMR(Path input, Path clustersIn, Path output)
throws IOException, InterruptedException, ClassNotFoundException {
Configuration conf = new Configuration();
conf.set(STATE_IN_KEY, clustersIn.toString());
Job job = new Job(conf,
"Mean Shift Driver running clusterData over input: " + input);
job.setOutputKeyClass(IntWritable.class);
job.setOutputValueClass(WeightedVectorWritable.class);
job.setMapperClass(MeanShiftCanopyClusterMapper.class);
job.setInputFormatClass(SequenceFileInputFormat.class);
job.setOutputFormatClass(SequenceFileOutputFormat.class);
job.setNumReduceTasks(0);
job.setJarByClass(MeanShiftCanopyDriver.class);
FileInputFormat.setInputPaths(job, input);
FileOutputFormat.setOutputPath(job, output);
if (!job.waitForCompletion(true)) {
throw new InterruptedException(
"Mean Shift Clustering failed on clustersIn " + clustersIn);
}
}
示例3: putVectorInRespectiveCluster
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
/**
*
* Finds out the cluster directory of the vector and writes it into the specified cluster.
*/
private void putVectorInRespectiveCluster(String clusterId, WeightedVectorWritable point) throws IOException {
Writer writer = findWriterForVector(clusterId);
postProcessedClusterDirectories.put(clusterId,
PathDirectory.getClusterPathForClusterId(clusterPostProcessorOutput, clusterId));
writeVectorToCluster(writer, point);
}
示例4: map
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
@Override
protected void map(WritableComparable<?> key, ClusterWritable clusterWritable, Context context)
throws IOException, InterruptedException {
// canopies use canopyIds assigned when input vectors are processed as vectorIds too
MeanShiftCanopy canopy = (MeanShiftCanopy)clusterWritable.getValue();
int vectorId = canopy.getId();
for (MeanShiftCanopy msc : canopies) {
for (int containedId : msc.getBoundPoints().toList()) {
if (vectorId == containedId) {
context.write(new IntWritable(msc.getId()),
new WeightedVectorWritable(1, canopy.getCenter()));
}
}
}
}
示例5: map
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
/**
* The key is the cluster id and the value is the vector.
*/
@Override
protected void map(IntWritable key, WeightedVectorWritable vector, Context context) throws IOException,
InterruptedException {
context.write(new Text(key.toString().trim()), new VectorWritable(vector.getVector()));
}
示例6: writeVectorToCluster
import org.apache.mahout.clustering.classify.WeightedVectorWritable; //导入依赖的package包/类
/**
* Writes vector to the cluster directory.
*/
private void writeVectorToCluster(Writer writer, WeightedVectorWritable point) throws IOException {
writer.append(new LongWritable(uniqueVectorId++), new VectorWritable(point.getVector()));
writer.sync();
}