## Package org.apache.mahout.cf.taste.hadoop.als

Class Summary
DatasetSplitter: Split a recommendation dataset into a training and a test set
FactorizationEvaluator: Measures the root-mean-squared error of a rating matrix factorization against a test set.
FactorizationEvaluator.PredictRatingsMapper
MultithreadedSharingMapper<K1,V1,K2,V2>: Multithreaded Mapper for `SharingMapper`s.
ParallelALSFactorizationJob: MapReduce implementation of the two factorization algorithms described in
PredictionMapper: a multithreaded mapper that loads the feature matrices U and M into memory.
RecommenderJob: Computes the top-N recommendations per user from a decomposition of the rating matrix
SharingMapper<K1,V1,K2,V2,S>: Mapper class to be used by `MultithreadedSharingMapper`.
SolveExplicitFeedbackMapper: Solving mapper that can be safely executed using multiple threads
SolveImplicitFeedbackMapper: Solving mapper that can be safely executed using multiple threads

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