It's fairly arbitrary. Strong positive ratings are probably more than merely "above average", but you could define the threshold higher or lower if you wanted. It's a good default.
On Tue, Jan 15, 2013 at 3:58 PM, Zia mel <ziad.kame...@gmail.com> wrote: > Hi > Why in recommender the threshold is considered the user’s average > preferences value plus one standard deviation ? > Can we asssume that the good recommendations are anything above the > user's average preferences? > > Many thanks
