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java.lang.Objectorg.apache.hadoop.mapreduce.Mapper<org.apache.hadoop.io.LongWritable,org.apache.hadoop.io.Text,VarLongWritable,VarLongWritable>
org.apache.mahout.cf.taste.hadoop.ToEntityPrefsMapper
org.apache.mahout.cf.taste.hadoop.ToUserPrefsMapper
public final class ToUserPrefsMapper
The 'reverse' of ToItemPrefsMapper
; outputs item IDs mapped to user-pref data.
Nested Class Summary |
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Nested classes/interfaces inherited from class org.apache.hadoop.mapreduce.Mapper |
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org.apache.hadoop.mapreduce.Mapper.Context |
Field Summary |
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Fields inherited from class org.apache.mahout.cf.taste.hadoop.ToEntityPrefsMapper |
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TRANSPOSE_USER_ITEM |
Constructor Summary | |
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ToUserPrefsMapper()
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Method Summary |
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Methods inherited from class org.apache.mahout.cf.taste.hadoop.ToEntityPrefsMapper |
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map, setup |
Methods inherited from class org.apache.hadoop.mapreduce.Mapper |
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cleanup, run |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public ToUserPrefsMapper()
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