[Computer-go] CGOS rating has drifted a lot

Rémi Coulom remi.coulom at gmail.com
Wed Jan 6 03:22:20 PST 2021


I trained a much stronger 19x19 network for Crazy Stone in December, and
connected it to CGOS yesterday. It is winning almost 100% of its games
against the version I connected 3 years ago, and still has a lower rating.
It seems there has been a very big drift of ratings.

Even the Bayeselo list seems to have drifted.

My feeling is that this may be caused by strong programs losing on time
against weak programs. It would be interesting to compute a rating list
that excludes games lost on time.

I could also reconnect CrazyStone-18.03. I will do it in a few days when
the current version will have played enough games to establish its rating.

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