Re: Popularity of recommender items

2014-02-08 Thread Ted Dunning
I have different opinions about each piece. I think that cross recommendation is as core as RowSimilarityJob and should be a parallel implementation or integrated. Parallel is probably easier. It is even plausible to have a version of RowSimilarityJob that doesn't support all the different dista

Re: Popularity of recommender items

2014-02-08 Thread Pat Ferrel
That was by no means to criticize effort level, which has been impressive especially during the release. It was more a question about the best place to add these things and whether they are important. Whether people see these things as custom post processing or core. On Feb 8, 2014, at 12:13 P

Re: Popularity of recommender items

2014-02-08 Thread Suneel Marthi
I am not fulltime on Mahout either and have a fulltime job which is unrelated to Mahout. Its just that I have been sacrificing personal time to keep things moving on Mahout. On Saturday, February 8, 2014 3:13 PM, Ted Dunning wrote: Thompson sampling doesn't require time other than a se

Re: Popularity of recommender items

2014-02-08 Thread Ted Dunning
Thompson sampling doesn't require time other than a sense of what do we now know. It really is just a correct form for dithering that uses our current knowledge. For a worked out version of Thompson sampling with ranking, see this blog: http://tdunning.blogspot.com/2013/04/learning-to-rank-in-ver

Re: Popularity of recommender items

2014-02-08 Thread Pat Ferrel
Didn’t mean to imply I had historical view data—yet. The Thompson sampling ‘trick’ looks useful for auto converging to the best of A/B versions and a replacement for dithering. Below you are proposing another case to replace dithering—this time on a list of popular items? Dithering works on any