On Fri, Aug 15, 2014 at 2:24 PM, Pat Ferrel <pat.fer...@gmail.com> wrote:
> > On Aug 15, 2014, at 9:05 AM, Ted Dunning <ted.dunn...@gmail.com> wrote: > > > > It is bad practice to use weightings to express different actions. This > > may be necessary in an ALS framework, but it is still a bad idea. > > > > A much better approach is to use multi-modal recommendation in which each > > action is used independently in a cross-recommendation fashion to measure > > predictive power. Some thumbs down actions will likely predict some > > purchases. If you smash everything together, you won't see that > subtlety. > > I think that is precisely what I was suggesting with #1. Using thumbs down > as the secondary action—a cross-cooccurrence indicator. For the [B’A]h_b > case. Where A is thumbs up and B is thumbs down. > > For that matter about any action that can be recorded for the same user > set can now be treated as if it has some predictive value for the primary > action because the cross-cooccurrence indicator will tell you whether that > is a correct assumption or not. > > If this pans out it seems like a substantially new way of predicting user > behavior by looking at many correlated actions but recommending only one > (or few). > Sorry about that. I didn't recognize what you were saying until I had read it again a few times. Unfortunately, I posted first and read after. You are correct. This is just what you said. And it is very exciting new ground.
