Yes, the equivalent now would be to use a Rescorer object, which would return false from isFiltered() for an item that should not be recommended. How's that work for you?
On Fri, Feb 19, 2010 at 9:18 PM, Florian Geier <[email protected]> wrote: > > Hi everyone, > > I'm just getting started with mahout and I was reading an old api > documentation that was referring to version 0.1. I noticed that in this > version it was possible to construct a Preference object with an instance of > the Item class. This class had a boolean property "recommendable". My > understanding was that this could be used to make use of the whole item > space for generating recommendations, even if only a subset of items was > actually recommendable (e.g. because the the other items are not on stock at > that time). > In version 0.2 this functionality seems to be no longer available - the > Preference constructor now only takes the IDs of users and items. > > In my application I would have to make recommendations for a small subset of > items, but I would like to use all the items in the datamodel as input to my > collaborative filtering algorithm. Is there still a way to do that? If so, > it would be great if someone could give me a hint where I can find an > example, wiki post or tutorial on how to do it. > > Regards, > Florian > -- > View this message in context: > http://old.nabble.com/recommendations-over-a-subset-of-items-tp27660374p27660374.html > Sent from the Mahout User List mailing list archive at Nabble.com. > >
