org.apache.mahout.math.hadoop.similarity.cooccurrence

Class Vectors

java.lang.Object

org.apache.mahout.math.hadoop.similarity.cooccurrence.Vectors

public final class Vectors
extends Object

Method Summary

Modifier and Type	Method and Description
static Vector	maybeSample(Vector original, int sampleSize)
static Vector	merge(Iterable<VectorWritable> partialVectors)
static Vector	read(org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf)
static OpenIntIntHashMap	readAsIntMap(org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf)
static Vector	sum(Iterator<VectorWritable> vectors)
static Vector.Element[]	toArray(VectorWritable vectorWritable)
static Vector	topKElements(int k, Vector original)
static void	write(Vector vector, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf)
static void	write(Vector vector, org.apache.hadoop.fs.Path path, org.apache.hadoop.conf.Configuration conf, boolean laxPrecision)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

maybeSample

public static Vector maybeSample(Vector original,
                                 int sampleSize)

topKElements

public static Vector topKElements(int k,
                                  Vector original)

merge

public static Vector merge(Iterable<VectorWritable> partialVectors)

sum

public static Vector sum(Iterator<VectorWritable> vectors)

toArray

public static Vector.Element[] toArray(VectorWritable vectorWritable)

write

public static void write(Vector vector,
                         org.apache.hadoop.fs.Path path,
                         org.apache.hadoop.conf.Configuration conf)
                  throws IOException

Throws:

IOException

write

public static void write(Vector vector,
                         org.apache.hadoop.fs.Path path,
                         org.apache.hadoop.conf.Configuration conf,
                         boolean laxPrecision)
                  throws IOException

Throws:

IOException

readAsIntMap

public static OpenIntIntHashMap readAsIntMap(org.apache.hadoop.fs.Path path,
                                             org.apache.hadoop.conf.Configuration conf)
                                      throws IOException

Throws:

IOException

read

public static Vector read(org.apache.hadoop.fs.Path path,
                          org.apache.hadoop.conf.Configuration conf)
                   throws IOException

Throws:

IOException