Author: Sune Fischer
Date: 14:35:48 04/09/02
Go up one level in this thread
On April 09, 2002 at 17:22:49, Dann Corbit wrote: >On April 09, 2002 at 17:14:55, Ricardo Gibert wrote: >[snip] >>This explains "the rating drift" perfectly. >> >>The first few years, the ratings remains about the same, then suddenly about 100 >>rating points disappear in the year 2000. Most of DC's examples follow the same >>pattern. >> >>I think DC will be disappointed that his "discovery" is not going to exactly >>rank right up there with the theory of continental drift ;) > >Actually, it is very nice to understand why. However, it is very puzzling that >the ratings do not move at all then, since much stronger programs are introduced >over time. My only explanation can be that the ratings are not recalibrated for >the whole set. The older ratings must be "cast in stone" somehow. It wouldn't be too hard to do. If you have a group of repeaters, calculate their old average rating, calibrate the new list to have the same average for those programs. A different way would be to give the new engines a rating based on how they perform against the well established programs. However this way the list may still drift slightly over time. -S.
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