On Tue, Aug 7, 2012 at 6:57 PM, Lodewijk <lodewijk(a)effeietsanders.org> wrote:
Yeah, it won't be easy :) But with big numbers it
might be the only way. One
possible way is to only allow two scores: 1 or 0 (and skip). And then take
the average instead of the sum. That way you should be able to get the most
wonderful images on top - we don't need to rank everything, but should only
make sure that the top-25 images are within the selection of 500.
Lodewijk
1 or 0 would be worse. You have ranked 980 photos and now find out the
greatest one that shadows all the previous ones, would you just give
it a 1 like hundreds before?
I think you should offer 1-to-10 scores, freeform even, allowing for a
12 or 5.768 if the user so wishes. Then you can normalize them before
agregating.
Sum vs average is probably similar.
If you really have infinite reviews for each image, it should be about
right (each image would have been served to the same porcentage of
inclusionists as deletionists), but I don't think we would have an
infinite so big. :-)