On Fri, Feb 13, 2015 at 11:11 AM, Eugenio Tacchini < eugenio.tacch...@gmail.com> wrote:
> Is there anyone who can give me some hints about this task? > Another way to look at this is to try to wedge this into the item similarity code. There are hooks available in the map-reduce version of item similarity to put an arbitrary user distance in. This only works well if there are sparsity constraints that limit the number of distances that need to be computed, but if it works, it can be really excellent. This would allow you to put your distances in and still use an indicator-based recommender.
