org.apache.mahout.cf.taste.hadoop.cooccurence
Class UserItemRecommender.RecommenderReducer
java.lang.Object
org.apache.hadoop.mapred.MapReduceBase
org.apache.mahout.cf.taste.hadoop.cooccurence.UserItemRecommender.RecommenderReducer
- All Implemented Interfaces:
- java.io.Closeable, org.apache.hadoop.mapred.JobConfigurable, org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
- Enclosing class:
- UserItemRecommender
public static class UserItemRecommender.RecommenderReducer
- extends org.apache.hadoop.mapred.MapReduceBase
- implements org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
Method Summary |
void |
configure(org.apache.hadoop.mapred.JobConf conf)
|
void |
outputSorted(int userId,
java.util.Collection<java.util.Map.Entry<java.lang.Long,java.lang.Double>> recomSet,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output)
|
void |
reduce(Bigram userSeenItem,
java.util.Iterator<TupleWritable> candTupleItr,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> 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 |
UserItemRecommender.RecommenderReducer
public UserItemRecommender.RecommenderReducer()
configure
public void configure(org.apache.hadoop.mapred.JobConf conf)
- Specified by:
configure
in interface org.apache.hadoop.mapred.JobConfigurable
- Overrides:
configure
in class org.apache.hadoop.mapred.MapReduceBase
reduce
public void reduce(Bigram userSeenItem,
java.util.Iterator<TupleWritable> candTupleItr,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output,
org.apache.hadoop.mapred.Reporter reporter)
throws java.io.IOException
- Specified by:
reduce
in interface org.apache.hadoop.mapred.Reducer<Bigram,TupleWritable,org.apache.hadoop.io.Text,org.apache.hadoop.io.Text>
- Throws:
java.io.IOException
outputSorted
public void outputSorted(int userId,
java.util.Collection<java.util.Map.Entry<java.lang.Long,java.lang.Double>> recomSet,
org.apache.hadoop.mapred.OutputCollector<org.apache.hadoop.io.Text,org.apache.hadoop.io.Text> output)
throws java.io.IOException
- Throws:
java.io.IOException
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