I can't think of any really clever way to handle this. Here is about
the best I can think of right now:
Keep statistics on each program - how often it loses due to time or
illegal moves. Use those statistics to reduce the impact of the rating
formula. I could arrange it so that even if 10% of your games are
lost that way, your rating becomes highly suspicious and given very
little weight in the rating formula. This basically amounts to
treating the games of such players as if they were un-rated games.
- Don
Hideki Kato wrote:
Don Dailey: <[EMAIL PROTECTED]>:
I don't think this has a very large impact on the rating pool. It's
annoying, but it will all average out. No extra points are leaving or
entering the rating pool as a result of this so this will not cause
general inflation or deflation. It may cause a slight "compression"
effect where the lows and highs come closer together, but I believe this
will be minor.
Sure, "compression" can be observed but I don't believe it's minor.
The rating of mogo-big-4c-nb-32 is 2465 now (which could decrease more
if allowed resign) while it had been over 2500 for months.
This is one example and another is that the winning rate against
mogo-big-4c-nb-32 of Salat is 50% (19/38) but its rating is
only 2341, which should be over 2400 in former days, I believe.
-Hideki
The next time I run the all time rating list, I will see what happens
if I ignore kartoffel's games - just to see if this has much of an
impact.
- Don
Hideki Kato wrote:
I'm afraid that kartoffel may cause some confusion on the ratings.
I've set mogo-big-4c-nb-32 never resign but this will help little.
I'd like to prefer every program never resign until the author of
kartoffel fix the bug to prevent the ratings being corrupted.
-Hideki
John Fan: <[EMAIL PROTECTED]>:
Seems it has a serious bug on end game against weak bots. Most of its losing
games against weak bots lost on illegal move.
On Fri, Jul 25, 2008 at 9:36 PM, John Fan <[EMAIL PROTECTED]> wrote:
kartoffel on cgos has a high winning ratings against strong bots, but
losing to weak bots. Its rating is only 1575, but has higher than 50%
against bots over 2200 ratings. Anybody knows what algorithm it uses?
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