hello everyone, I'm trying to build item-based recommender that would take the users' rating-bias into account. According to my class' slides, that should involve "adjusted cosine similarity". I couldn't find such implementation in Mahout... did I search it in the wrong place or should I implement it? If so, how? Any tips would be welcome since I'm new to Mahout...
I found out that in mahout-0.8 there was a (deprecated) class that seemed to do what I'm looking for (http://archive.cloudera.com/cdh5/cdh/5/mahout-0.8-cdh5.0.0/mahout-core/org/apache/mahout/cf/taste/impl/recommender/BiasedItemBasedRecommender.html). Does anybody know why this was removed? Note: I also posted the question on stackoferlow (http://stackoverflow.com/questions/29419222/mahout-adjusted-cosine-similarity-for-item-based-recommender) Thank you in advance! Regards, Pier Lorenzo
