The collaborative filtering example question that I mentioned...;-)

[Subbarao Kambhampati <rao@asu.edu>]

Here it is--from a previous exam:

Don has been married to Mary
for 20 years, and they have seen over 300 movies
together. Mary however seems to agree with Don on only 80% of the movies
(in terms of
whether they were good or bad). Of late, Don has been carrying on with
Roxy over at the
office and they have seen some 3 movies together. Roxy seems to agree
with Don a
100%. Now, there is a new movie in town?called ?Gulf Wars: Episode
2?Clone of the
Attack? (see
http://rakaposhi.eas.asu.edu/clone.bmp
for a poster) . He hasn't yet seen
it, but both Roxy and Mary have?and they have differing opinions (Roxy loves it but Mary hated it).
What does collaborative filtering method say he should do in this kind of scenario?


[I should admit that a lot of students rooted for Roxy in their answers. :-(  ]

Rao