org.apache.mahout.cf.taste.hadoop.item
Class PartialMultiplyMapper
java.lang.Object
org.apache.hadoop.mapreduce.Mapper<VarIntWritable,VectorAndPrefsWritable,VarLongWritable,PrefAndSimilarityColumnWritable>
org.apache.mahout.cf.taste.hadoop.item.PartialMultiplyMapper
public final class PartialMultiplyMapper
- extends org.apache.hadoop.mapreduce.Mapper<VarIntWritable,VectorAndPrefsWritable,VarLongWritable,PrefAndSimilarityColumnWritable>
maps similar items and their preference values per user
Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
org.apache.hadoop.mapreduce.Mapper.Context |
Methods inherited from class org.apache.hadoop.mapreduce.Mapper |
cleanup, run, setup |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
PartialMultiplyMapper
public PartialMultiplyMapper()
map
protected void map(VarIntWritable key,
VectorAndPrefsWritable vectorAndPrefsWritable,
org.apache.hadoop.mapreduce.Mapper.Context context)
throws java.io.IOException,
java.lang.InterruptedException
- Overrides:
map
in class org.apache.hadoop.mapreduce.Mapper<VarIntWritable,VectorAndPrefsWritable,VarLongWritable,PrefAndSimilarityColumnWritable>
- Throws:
java.io.IOException
java.lang.InterruptedException
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