Re: problem in recommender similarity computation (taste)

2015-03-08 Thread Pat Ferrel
Some of the references for the newer cooccurrence recommender that we now suggest you use are at the top of the page here: http://mahout.apache.org/users/recommender/intro-cooccurrence-spark.html There are many benefits of this new method including at its core a new similarity algorithm that

Re: problem in recommender similarity computation (taste)

2015-03-08 Thread Ted Dunning
On Sat, Mar 7, 2015 at 3:05 AM, Tevfik Aytekin tevfik.ayte...@gmail.com wrote: There can be two solutions: 1. There should be a parameter n, which determines the minimum number of common ratings needed to compute a similarity otherwise the system should return NaN. 2. The similarity should

problem in recommender similarity computation (taste)

2015-03-07 Thread Tevfik Aytekin
Hi, I've noticed a problem in the non-Hadoop (taste) version of the recommender package. The problem is in the AbstractSimilarity (in package org.apache.mahout.cf.taste.impl.similarity). This class is the base class for computing the similarity values between vectors of users or items. It