You would have to ask these questions of Paul. He is an extremely
serious and careful person, so while I would find it hard to believe
that every person had exactly the same rating down to 0.01, it must
have been very close when the entire collection of AGA members was
considered. I do not believe that Paul would have allowed the change
in the previous rules if the data were not convincing. But I was not
involved at the time, so he would know and I only know the story as it
was told to me (and how it is being used as the basis for rating
computer Go playing programs now).
Cheers,
David
On 5, Sep 2008, at 1:46 AM, Robert Jasiek wrote:
David Doshay wrote:
> Two
separate rating tables were kept, one for handicap games and
another for non-handicap games. Over time it turned out that the
ratings for individuals converged
Did they converge for each person individually or converge only for
all persons on average? Did the convergence occur for all persons
regardless of whether they played Black the more often in handicap
games? Did fixed versus free handicaps make a difference? Would
altering the handicap density per rank difference / komi system have
made a difference?
IOW, was the conclusion well justified or misinterpretation?
--
robert jasiek
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