Just to clarify, when I run the group lens demo, say with:
http://localhost:8080/mahout-taste-webapp/RecommenderServlet?userID=12&debug=true
I get something like:
User:User[id:12]
Recommender:
GroupLensRecommender
[recommender:CachingRecommender
[recommender:SlopeOneRecommender[weighted:true, stdDevWeighted:true,
diffStorage:MemoryDiffStorage]]]
Top 20 Preferences:
5.0 111 Taxi Driver (1976) Drama|Thriller
5.0 1198 Raiders of the Lost Ark (1981) Action|Adventure
5.0 1221 Godfather: Part II The (1974) Action|Crime|Drama
5.0 2804 Christmas Story A (1983) Comedy|Drama
...
Recommendations:
7.0 557 Mamma Roma (1962) Drama
5.5 2510 Just the Ticket (1999) Comedy|Romance
5.5 3295 Raining Stones (1993) Drama
...
Thus, what I am seeing here, is the preferences are the movies that
user 12 rated and which were then used to derive the recommendations
listed at the bottom, right?
Also, it says I'm using a SlopeOneRecommender, what does that do
compared to the other recommenders, as discussed in http://localhost:8888/taste.html#examples
? That is, is it appropriate to substitute in the other ones for this
demo? Would it be worth updating the demo to show the results of the
various recommenders?
Thanks
Grant
