getData for binaryRatingMatrix data with type "known" and "unknown"
preserve now user ids/rownames (reported by Kasia Kulma).
Changes in version 0.2-2 (04/05/2017)
Bugfixes
predict for IBCF now returns top-N lists correctly.
(cross) dissimilarity for binary data now returns the correct data
type (reported by inkrement).
Changes in version 0.2-1 (09/15/2016)
New Features
Added recommender method ALS and ALS_implicit based on latent factors
and alternating least squares (contributed by Bregt Verreet).
Changes in recommendation method AR: Default for maxlen is now 3 to
find more specific rules. Parameters measure and decreasing for
sorting the rule base are now called sort_measure and sort_decreasing.
New parameter apriori_control can be used to pass a control list to
apriori in arules.
The registry now has a reference field.
Bugfixes
Fixed bug in method IBCF with n being ignored in
predict (reported by Giorgio Alfredo Spedicato).
Changes in version 0.2-0 (05/31/2016)
Added recommender RERECOMMEND to recommend highly rated items again (e.g.,
movies to watch again).
Added a hybrid recommender (HybridRecommender).
realRatingMatrix supports now subset assignment with [.
RECOM_POPULAR now shows the parameters in the registry.
RECOM_RANDOM produced now random ratings from the estimated distribution of
the available recommendations (from a normal distribution with the user's
means and standard deviation).
predict now checks if newdata (number of items) is compatible with the model.
getTopNLists and bestN gained a randomized argument to increase prediction
diversity.
Added getRatings method for topNList.
Changes in version 0.1-9 (05/18/2016)
FIX: rownames of newdata are now preserved in prediction output.
We use testthat now.
Normalization now can be done on rows and columns at the same time.
SVD with column-mean imputation now folds in new users.
Added Funk SVD (funkSVD and recommender SVDF).
Added function error measures: MAE, MSE, RMSE, frobenius (norm).
Jester5k contains now the jokes.
MovieLense contains now movie meta information.
topNLists now also contains ratings.
Removed obsolete PCA-based recommender.
Changes in version 0.1-8 (12/17/2015)
Fixed several problems in the vignette.
predict for realRatingMatrix accepts now type = "ratingMatrix" to returns
a completed rating matrix.
Negative values for given in evaluationScheme implement all-but-given
evaluation.
Method "SVD" used now EM-based approximation from package bcv.
Changes in version 0.1-7 (7/23/2015)
NAMESPACE now imports non standard R packages.
Changes in version 0.1-5 (8/18/2014)
Fixed NAMESPACE problems.
Evaluation of ratings is now better integrated into evaluate.