org.apache.mahout.cf.taste.hadoop.als
Class DatasetSplitter

java.lang.Object
  extended by org.apache.hadoop.conf.Configured
      extended by org.apache.mahout.common.AbstractJob
          extended by org.apache.mahout.cf.taste.hadoop.als.DatasetSplitter
All Implemented Interfaces:
org.apache.hadoop.conf.Configurable, org.apache.hadoop.util.Tool

public class DatasetSplitter
extends AbstractJob

Split a recommendation dataset into a training and a test set

Command line arguments specific to this class are:

  1. --input (path): Directory containing one or more text files with the dataset
  2. --output (path): path where output should go
  3. --trainingPercentage (double): percentage of the data to use as training set (optional, default 0.9)
  4. --probePercentage (double): percentage of the data to use as probe set (optional, default 0.1)


Field Summary
 
Fields inherited from class org.apache.mahout.common.AbstractJob
argMap, inputFile, inputPath, outputFile, outputPath, tempPath
 
Constructor Summary
DatasetSplitter()
           
 
Method Summary
static void main(String[] args)
           
 int run(String[] args)
           
 
Methods inherited from class org.apache.mahout.common.AbstractJob
addFlag, addInputOption, addOption, addOption, addOption, addOption, addOutputOption, buildOption, buildOption, getAnalyzerClassFromOption, getCLIOption, getConf, getDimensions, getFloat, getFloat, getGroup, getInputFile, getInputPath, getInt, getInt, getOption, getOption, getOption, getOptions, getOutputFile, getOutputPath, getOutputPath, getTempPath, getTempPath, hasOption, keyFor, maybePut, parseArguments, parseArguments, parseDirectories, prepareJob, prepareJob, prepareJob, prepareJob, setConf, setS3SafeCombinedInputPath, shouldRunNextPhase
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DatasetSplitter

public DatasetSplitter()
Method Detail

main

public static void main(String[] args)
                 throws Exception
Throws:
Exception

run

public int run(String[] args)
        throws Exception
Throws:
Exception


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