org.apache.mahout.cf.taste.hadoop.item
Classes 
AggregateAndRecommendReducer
ItemFilterAsVectorAndPrefsReducer
ItemFilterMapper
ItemIDIndexMapper
ItemIDIndexReducer
PartialMultiplyMapper
PrefAndSimilarityColumnWritable
RecommenderJob
SimilarityMatrixRowWrapperMapper
ToUserVectorsReducer
ToVectorAndPrefReducer
UserVectorSplitterMapper
VectorAndPrefsWritable
VectorOrPrefWritable
Enums 
ToUserVectorsReducer.Counters