org.apache.mahout.classifier.df.mapreduce.inmem

Class InMemBuilder

java.lang.Object

org.apache.mahout.classifier.df.mapreduce.Builder

org.apache.mahout.classifier.df.mapreduce.inmem.InMemBuilder

Deprecated.

@Deprecated
public class InMemBuilder
extends Builder

MapReduce implementation where each mapper loads a full copy of the data in-memory. The forest trees are splitted across all the mappers

Constructor Summary

Constructors

Constructor and Description
InMemBuilder(TreeBuilder treeBuilder, org.apache.hadoop.fs.Path dataPath, org.apache.hadoop.fs.Path datasetPath) Deprecated.
InMemBuilder(TreeBuilder treeBuilder, org.apache.hadoop.fs.Path dataPath, org.apache.hadoop.fs.Path datasetPath, Long seed, org.apache.hadoop.conf.Configuration conf) Deprecated.

Method Summary

Modifier and Type	Method and Description
protected void	configureJob(org.apache.hadoop.mapreduce.Job job) Deprecated. Used by the inheriting classes to configure the job
protected DecisionForest	parseOutput(org.apache.hadoop.mapreduce.Job job) Deprecated. Parse the output files to extract the trees and pass the predictions to the callback

Methods inherited from class org.apache.mahout.classifier.df.mapreduce.Builder

build, getDataPath, getDistributedCacheFile, getNbTrees, getNumMaps, getOutputPath, getRandomSeed, getTreeBuilder, isOutput, loadDataset, runJob, setNbTrees, setOutputDirName, sortSplits

Methods inherited from class java.lang.Object

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

Constructor Detail

InMemBuilder

public InMemBuilder(TreeBuilder treeBuilder,
                    org.apache.hadoop.fs.Path dataPath,
                    org.apache.hadoop.fs.Path datasetPath,
                    Long seed,
                    org.apache.hadoop.conf.Configuration conf)

Deprecated.

InMemBuilder

public InMemBuilder(TreeBuilder treeBuilder,
                    org.apache.hadoop.fs.Path dataPath,
                    org.apache.hadoop.fs.Path datasetPath)

Deprecated.

Method Detail

configureJob

protected void configureJob(org.apache.hadoop.mapreduce.Job job)
                     throws IOException

Deprecated.

Description copied from class: Builder

Used by the inheriting classes to configure the job

Specified by:

configureJob in class Builder

Parameters:

job - Hadoop's Job

Throws:

IOException - if anything goes wrong while configuring the job

parseOutput

protected DecisionForest parseOutput(org.apache.hadoop.mapreduce.Job job)
                              throws IOException

Deprecated.

Description copied from class: Builder

Parse the output files to extract the trees and pass the predictions to the callback

Specified by:

parseOutput in class Builder

Parameters:

job - Hadoop's job

Returns:

Built DecisionForest

Throws:

IOException - if anything goes wrong while parsing the output