org.apache.mahout.math.hadoop.stochasticsvd

Class UJob

java.lang.Object

org.apache.mahout.math.hadoop.stochasticsvd.UJob

public class UJob
extends Object

Computes U=Q*Uhat of SSVD (optionally adding x pow(Sigma, 0.5) )

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	UJob.UMapper

Constructor Summary

Constructors

Constructor and Description
UJob()

Method Summary

Modifier and Type	Method and Description
void	run(org.apache.hadoop.conf.Configuration conf, org.apache.hadoop.fs.Path inputPathQ, org.apache.hadoop.fs.Path inputUHatPath, org.apache.hadoop.fs.Path sigmaPath, org.apache.hadoop.fs.Path outputPath, int k, int numReduceTasks, Class<? extends org.apache.hadoop.io.Writable> labelClass, org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.OutputScalingEnum outputScaling)
void	waitForCompletion()

Methods inherited from class java.lang.Object

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

Constructor Detail

UJob

public UJob()

Method Detail

run

public void run(org.apache.hadoop.conf.Configuration conf,
                org.apache.hadoop.fs.Path inputPathQ,
                org.apache.hadoop.fs.Path inputUHatPath,
                org.apache.hadoop.fs.Path sigmaPath,
                org.apache.hadoop.fs.Path outputPath,
                int k,
                int numReduceTasks,
                Class<? extends org.apache.hadoop.io.Writable> labelClass,
                org.apache.mahout.math.hadoop.stochasticsvd.SSVDSolver.OutputScalingEnum outputScaling)
         throws ClassNotFoundException,
                InterruptedException,
                IOException

Throws:

ClassNotFoundException

InterruptedException

IOException

waitForCompletion

public void waitForCompletion()
                       throws IOException,
                              ClassNotFoundException,
                              InterruptedException

Throws:

IOException

ClassNotFoundException

InterruptedException