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Packages that use UserSimilarity | |
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org.apache.mahout.cf.taste.impl.neighborhood | |
org.apache.mahout.cf.taste.impl.recommender | |
org.apache.mahout.cf.taste.impl.similarity |
Uses of UserSimilarity in org.apache.mahout.cf.taste.impl.neighborhood |
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Constructors in org.apache.mahout.cf.taste.impl.neighborhood with parameters of type UserSimilarity | |
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NearestNUserNeighborhood(int n,
double minSimilarity,
UserSimilarity userSimilarity,
DataModel dataModel)
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NearestNUserNeighborhood(int n,
double minSimilarity,
UserSimilarity userSimilarity,
DataModel dataModel,
double samplingRate)
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NearestNUserNeighborhood(int n,
UserSimilarity userSimilarity,
DataModel dataModel)
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ThresholdUserNeighborhood(double threshold,
UserSimilarity userSimilarity,
DataModel dataModel)
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ThresholdUserNeighborhood(double threshold,
UserSimilarity userSimilarity,
DataModel dataModel,
double samplingRate)
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Uses of UserSimilarity in org.apache.mahout.cf.taste.impl.recommender |
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Methods in org.apache.mahout.cf.taste.impl.recommender that return UserSimilarity | |
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UserSimilarity |
GenericUserBasedRecommender.getSimilarity()
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Constructors in org.apache.mahout.cf.taste.impl.recommender with parameters of type UserSimilarity | |
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GenericBooleanPrefUserBasedRecommender(DataModel dataModel,
UserNeighborhood neighborhood,
UserSimilarity similarity)
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GenericUserBasedRecommender(DataModel dataModel,
UserNeighborhood neighborhood,
UserSimilarity similarity)
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Uses of UserSimilarity in org.apache.mahout.cf.taste.impl.similarity |
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Classes in org.apache.mahout.cf.taste.impl.similarity that implement UserSimilarity | |
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class |
CachingUserSimilarity
Caches the results from an underlying UserSimilarity 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 |
GenericUserSimilarity
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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 |
SpearmanCorrelationSimilarity
Like PearsonCorrelationSimilarity , but compares relative ranking of preference values instead of
preference values themselves. |
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 UserSimilarity | |
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CachingUserSimilarity(UserSimilarity similarity,
DataModel dataModel)
Creates this on top of the given UserSimilarity . |
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CachingUserSimilarity(UserSimilarity similarity,
int maxCacheSize)
Creates this on top of the given UserSimilarity . |
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GenericUserSimilarity(UserSimilarity otherSimilarity,
DataModel dataModel)
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GenericUserSimilarity(UserSimilarity otherSimilarity,
DataModel dataModel,
int maxToKeep)
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