Not directly, but you could modify an item-based recommender to do so. Where it uses an item-item similarity as a weight in a weighted average, you could modify the weight however you like depending on the types of the two items.
On Thu, Nov 17, 2011 at 5:16 PM, Jamey Wood <[email protected]> wrote: > Is there some way to weight particular preferences within Mahout? For > example, suppose you were creating some kind of literature recommender that > uses a 5-star preference scale. If you wanted to give double the weighting > to preferences for novels versus preferences for short stories, what would > be the best way to do it? > > Thanks, > Jamey >
