org.apache.mahout.cf.taste.hadoop.als
Class FactorizationEvaluator.PredictRatingsMapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.NullWritable>
org.apache.mahout.cf.taste.hadoop.als.FactorizationEvaluator.PredictRatingsMapper
- Enclosing class:
- FactorizationEvaluator
public static class FactorizationEvaluator.PredictRatingsMapper
- extends org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.NullWritable>
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
Method Summary |
protected void |
map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapreduce.Mapper.Context ctx)
|
protected void |
setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
|
Methods inherited from class org.apache.hadoop.mapreduce.Mapper |
cleanup, run |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
FactorizationEvaluator.PredictRatingsMapper
public FactorizationEvaluator.PredictRatingsMapper()
setup
protected void setup(org.apache.hadoop.mapreduce.Mapper.Context ctx)
throws IOException,
InterruptedException
- Overrides:
setup
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.NullWritable>
- Throws:
IOException
InterruptedException
map
protected void map(org.apache.hadoop.io.LongWritable key,
org.apache.hadoop.io.Text value,
org.apache.hadoop.mapreduce.Mapper.Context ctx)
throws IOException,
InterruptedException
- Overrides:
map
in class org.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.DoubleWritable,org.apache.hadoop.io.NullWritable>
- Throws:
IOException
InterruptedException
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