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Packages that use ItemSimilarity | |
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org.apache.mahout.cf.taste.impl.recommender | |
org.apache.mahout.cf.taste.impl.similarity | |
org.apache.mahout.cf.taste.impl.similarity.file |
Uses of ItemSimilarity in org.apache.mahout.cf.taste.impl.recommender |
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Methods in org.apache.mahout.cf.taste.impl.recommender that return ItemSimilarity | |
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ItemSimilarity |
GenericItemBasedRecommender.getSimilarity()
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Constructors in org.apache.mahout.cf.taste.impl.recommender with parameters of type ItemSimilarity | |
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AllSimilarItemsCandidateItemsStrategy(ItemSimilarity similarity)
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GenericBooleanPrefItemBasedRecommender(DataModel dataModel,
ItemSimilarity similarity)
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GenericBooleanPrefItemBasedRecommender(DataModel dataModel,
ItemSimilarity similarity,
CandidateItemsStrategy candidateItemsStrategy,
MostSimilarItemsCandidateItemsStrategy mostSimilarItemsCandidateItemsStrategy)
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GenericItemBasedRecommender.MostSimilarEstimator(long toItemID,
ItemSimilarity similarity,
Rescorer<LongPair> rescorer)
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GenericItemBasedRecommender(DataModel dataModel,
ItemSimilarity similarity)
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GenericItemBasedRecommender(DataModel dataModel,
ItemSimilarity similarity,
CandidateItemsStrategy candidateItemsStrategy,
MostSimilarItemsCandidateItemsStrategy mostSimilarItemsCandidateItemsStrategy)
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Uses of ItemSimilarity in org.apache.mahout.cf.taste.impl.similarity |
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Classes in org.apache.mahout.cf.taste.impl.similarity that implement ItemSimilarity | |
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class |
AbstractItemSimilarity
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class |
CachingItemSimilarity
Caches the results from an underlying ItemSimilarity implementation. |
class |
CityBlockSimilarity
Implementation of City Block distance (also known as Manhattan distance) - the absolute value of the difference of each direction is summed. |
class |
EuclideanDistanceSimilarity
An implementation of a "similarity" based on the Euclidean "distance" between two users X and Y. |
class |
GenericItemSimilarity
A "generic" GenericItemSimilarity.ItemItemSimilarity which takes a static list of precomputed item similarities and bases its
responses on that alone. |
class |
LogLikelihoodSimilarity
See http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.14.5962 and http://tdunning.blogspot.com/2008/03/surprise-and-coincidence.html. |
class |
PearsonCorrelationSimilarity
An implementation of the Pearson correlation. |
class |
TanimotoCoefficientSimilarity
An implementation of a "similarity" based on the Tanimoto coefficient, or extended Jaccard coefficient. |
class |
UncenteredCosineSimilarity
An implementation of the cosine similarity. |
Constructors in org.apache.mahout.cf.taste.impl.similarity with parameters of type ItemSimilarity | |
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CachingItemSimilarity(ItemSimilarity similarity,
DataModel dataModel)
Creates this on top of the given ItemSimilarity . |
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CachingItemSimilarity(ItemSimilarity similarity,
int maxCacheSize)
Creates this on top of the given ItemSimilarity . |
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GenericItemSimilarity(ItemSimilarity otherSimilarity,
DataModel dataModel)
Builds a list of item-item similarities given an GenericItemSimilarity.ItemItemSimilarity implementation and a
DataModel , rather than a list of GenericItemSimilarity.ItemItemSimilarity s. |
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GenericItemSimilarity(ItemSimilarity otherSimilarity,
DataModel dataModel,
int maxToKeep)
Like GenericItemSimilarity.GenericItemSimilarity(ItemSimilarity, DataModel) )}, but will only keep the specified
number of similarities from the given DataModel . |
Uses of ItemSimilarity in org.apache.mahout.cf.taste.impl.similarity.file |
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Classes in org.apache.mahout.cf.taste.impl.similarity.file that implement ItemSimilarity | |
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class |
FileItemSimilarity
An ItemSimilarity backed by a comma-delimited file. |
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