org.apache.mahout.ga.watchmaker.cd.hadoop
Class CDMapper
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
org.apache.mahout.ga.watchmaker.cd.hadoop.CDMapper
- All Implemented Interfaces:
- java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,CDFitness>
public class CDMapper
- extends org.apache.hadoop.mapred.MapReduceBase
- implements org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,CDFitness>
Hadoop Mapper. Evaluate all the rules with the input data line.
Method Summary |
void |
configure(org.apache.hadoop.mapred.JobConf job)
|
static CDFitness |
evaluate(int target,
int prediction,
int label)
Evaluate a given prediction. |
void |
map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.LongWritable,CDFitness> output,
org.apache.hadoop.mapred.Reporter reporter)
|
Methods inherited from class org.apache.hadoop.mapred.MapReduceBase |
close |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface java.io.Closeable |
close |
CLASSDISCOVERY_RULES
public static final java.lang.String CLASSDISCOVERY_RULES
- See Also:
- Constant Field Values
CLASSDISCOVERY_DATASET
public static final java.lang.String CLASSDISCOVERY_DATASET
- See Also:
- Constant Field Values
CLASSDISCOVERY_TARGET_LABEL
public static final java.lang.String CLASSDISCOVERY_TARGET_LABEL
- See Also:
- Constant Field Values
CDMapper
public CDMapper()
configure
public void configure(org.apache.hadoop.mapred.JobConf job)
- Specified by:
configure
in interface org.apache.hadoop.mapred.JobConfigurable
- Overrides:
configure
in class org.apache.hadoop.mapred.MapReduceBase
map
public void map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.LongWritable,CDFitness> output,
org.apache.hadoop.mapred.Reporter reporter)
throws java.io.IOException
- Specified by:
map
in interface org.apache.hadoop.mapred.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.LongWritable,CDFitness>
- Throws:
java.io.IOException
evaluate
public static CDFitness evaluate(int target,
int prediction,
int label)
- Evaluate a given prediction.
- Parameters:
target
- expected labelprediction
- label
- actual label
Copyright © 2008-2010 The Apache Software Foundation. All Rights Reserved.