Mahout: Recommender interface

Implementations of Recommender interface recommend items for a user. Mahout provides following recommenders.

a.   CachingRecommender

b.   GenericBooleanPrefItemBasedRecommender

c.    GenericBooleanPrefUserBasedRecommender

d.   GenericItemBasedRecommender

e.   GenericUserBasedRecommender

f.     ItemAverageRecommender

g.   ItemUserAverageRecommender

h.   KnnItemBasedRecommender

i.      RandomRecommender

j.     SlopeOneRecommender

k.    SVDRecommender

l.      TreeClusteringRecommender

m.  TreeClusteringRecommender2

Following are come under user-based recommenders.

GenericUserBasedRecommender,

GenericBooleanPrefUserBasedRecommender

SlopeOneRecommender,

Following are come under item based recommenders.

GenericItemBasedRecommender

ItemAverageRecommender

ItemUserAverageRecommender

GenericBooleanPrefItemBasedRecommender

KnnItemBasedRecommender

Other recommenders

CachingRecommender

RandomRecommender,

SVDRecommender,

Note:
Item based recommender’s gives recommendations to user based on similarities between items, not on similarities between users.

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