Hi, Here is an example of Lucene MLT-based "similar users" functionality: http://www.simpy.com/user/otis (it's based on tags) Of course, MLT can be tweaked with a couple of parameters, so it can be adjusted depending on the need.
I like Taste's mostSimilarUsers(), but I wish it exposed/returned the similarity metric, so one can use this method and see exactly how similar those most similar users are. For example, an application may want to show or hide similar users based on this similarity "distance" from the given user. Otis -- Sematext -- http://sematext.com/ -- Lucene - Solr - Nutch ----- Original Message ---- > From: Claudia Grieco <[email protected]> > To: [email protected] > Sent: Monday, July 20, 2009 8:15:26 AM > Subject: R: Implement the related search feature with mahout > > Thanks for your reply > > The fastest way to do this is in fact to > use a GenericUserBasedRecommender -- not because you need > recommendations, but because it exposes a nice mostSimlarUsers() > method. > > Yes, that's the approach I was using. I was using almost the same code but > with > GenericUserBasedRecommender instead of the Boolean version, so thanks for the > tip ;) > > > > First, Lucene itself has related-search functionality. > I have tried to look at it before, but I have only found the MoreLikeThis > functionality, which is useful to obtain more similar *results*, I think.
