Package org.apache.mahout.cf.taste.hadoop.cooccurence

Class Summary
Bigram  
Bigram.Comparator A Comparator that compares serialized Bigrams.
Bigram.FirstGroupingComparator Compare only the first part of the bigram, so that reduce is called once for each value of the first part.
Bigram.Frequency A wrapper class that associates pairs with frequency (Occurences)
ItemBigramGenerator  
ItemBigramGenerator.UserItemMapper  
ItemBigramGenerator.UserItemReducer  
ItemSimilarityEstimator This class feeds into all the item bigrams generated with ItemBigramGenerator.
ItemSimilarityEstimator.FirstPartitioner Partition based on the first part of the bigram.
ItemSimilarityEstimator.ItemItemCombiner  
ItemSimilarityEstimator.ItemItemMapper Output K -> (item1, item2), V -> ONE
ItemSimilarityEstimator.ItemItemReducer All sorted bigrams for item1 are recieved in reduce.
TupleWritable  
TupleWritable.Field  
UserItemJoiner  
UserItemJoiner.JoinItemMapper  
UserItemJoiner.JoinItemUserReducer  
UserItemJoiner.JoinUserMapper  
UserItemRecommender  
UserItemRecommender.RecommenderMapper  
UserItemRecommender.RecommenderReducer  
 



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