I'd like to see cross-recommendations added too. But I also want some automation of the steps required to build a simple recommender like the solr/mahout example Ted and Ellen have in their pamphlet.
Lowering the barrier to entry by providing a sample pipeline would help a lot of folks get started and hopefully would keep them interested. Perhaps in examples/bin? On Fri, Feb 14, 2014 at 10:56 AM, Pat Ferrel <p...@occamsmachete.com> wrote: > There's been work done on the cross-recommender. There is a Mahout-style > XRecommenderJob that has two preference models for two actions or > preference types. It uses matrix multiply to get a cooccurrence type > similarity matrix. If we had a cross-row-similarity-job, it could pretty > easily be integrated and I'd volunteer to integrate it. The XRSJ is > probably beyond me right now so if we can scare up someone to do that we'd > be a long way down the road. > > I'll put a feature request into Jira and take this to the dev list > > BTW this is already integrated with the solr-recommender. > > On Feb 8, 2014, at 7:19 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: > > 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 distance measures but does support multiple cross > and direct processing using LLR or related cooccurrence based measures. It > would be very cool if a single pass over the data could do many kinds of co > or cross occurrence operations. > > For dithering, it really is post processing. That said, it is also the > single largest improvement that anybody typically gets when testing > different options so it is a bit goofy to not have good support for some > kinds of dithering. > > For Thompson sampled recommenders, I am not sure where to start hacking on > our current code. > > > > > > > On Sat, Feb 8, 2014 at 4:53 PM, Pat Ferrel <p...@occamsmachete.com> wrote: > > > 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 PM, Ted Dunning <ted.dunn...@gmail.com> wrote: > > > > ... > > > > The reason that we aren't adding this like cross-rec and other things is > > that "we" have full-time jobs, mostly. Suneel is full-time on Mahout, > but > > the rest are not. You seem more active than most. > > > > > > > >
