On Sun, Feb 24, 2013 at 8:39 AM, Pat Ferrel <pat.fer...@gmail.com> wrote:

> ...
> But can you expect item similarity to work with the same input? I am fuzzy
> about how item similarity is calculated in cf/taste.
>

The cooccurrence oriented item-based recommenders should be fine.

I was expecting to train one recommender with (user, item+action) and call
> recommender1.recommend(userID, n) to get recs but also train another
> recommender with (user+action, item) to get recommender2.mostSimilarItems(
> itemID, n). I realize it's a hack but that aside is this second recommender
> required? I'd expect it to return items that use all actions to calculate
> similarity and therefore will use view information to improve the
> similarity calculation.
>

The second recommender is redundant.

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