[Computer-go] cgos bayeselo

Don Dailey dailey.don at gmail.com
Fri Nov 12 16:06:18 PST 2010


The main page is rated incrementally,  after each game your rating changes.
  Only the anchor remains the same.

Bayeselo rates ALL the games ever played as if it were a big major
tournament and it is stable, based on your performance through all time.

Both systems view the anchor player as having a fixed rating.


On Fri, Nov 12, 2010 at 6:41 PM, Robert Finking <robertfinkng555 at o2.co.uk>wrote:

> Hi Don,
> On 12/11/2010 20:08, Don Dailey wrote:
>> I made the change to the scripts which computer bayeselo ratings.   Every
>> bot which ends with the  ",?"  suffix (where the question mark is a wildcard
>> character)  will be rated as if it were a single player.   It will show up
>> in bayeselo with ",*"  (comma asterisk) appended.
> Great - sounds good. I'll try to get beta 3 out soon with comma suffixes.
> I've got a bit of rework to do due to my misunderstanding of the way
> suffixes should work, so will probably be a week or so before I get the pack
> out.
>> ...
>> I also intend to synchronize bayeselo ratings with the main list by
>> periodically copying the ratings from bayeselo to the standard list for
>> these comma bots.   I will not copy ratings for other bots,  just the comma
>> bots.
> Great - this will really  bring in the benefit of the changes!
>  This should have a fairly powerful standardizing effect on the rating
>> pool.   Bayeselo is standardized by a single anchor but there should be no
>> drift if the anchor has played enough games and so the comma bots should
>> always have accurate ratings, at least to accuracy of the ELO rating system
>> and the number of samples.
> I have a question here. What is the rating on the main list, and how does
> it relate to Bayeselo? E.g. if I look on
> http://cgos.boardspace.net/9x9/bayes.html, I see that _Gnu3.8L1_2 has an
> Elo of 1857 after playing 258 games. On
> http://cgos.boardspace.net/9x9/standings.html (the only page I normally
> look at for ratings) it has a rating of 1760 (after playing 258 games). How
> do these two numbers relate, and also how will it work, copying the Elo
> across to the main table, which at the moment doesn't look like it contains
> Elo? Sorry to ask basic questions - I'm still new =)I see on the Elo page
> that the Lazy,* bots have between them accrued 144 games. and have a
> combined Elo of 2111. But on the main ratings page I see two separate bots,
> Lazy,0 and Lazy,1.  Is the idea that when you do the copy-over, the main
> ratings page will also only show Lazy,* ?
> Apologies for the basic questions! Thanks for doing this.
> Raffles
>> Please note that it will be good if the actual anchor continues to
>> participate on a regular basis.
>> Don
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