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Subject: Re: ELO and size of the population

Author: Robert Hyatt

Date: 06:40:07 10/08/03

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On October 08, 2003 at 07:49:29, Francesco Di Tolla wrote:

>>I agree that programs are getting stronger but the comparision of SSDF to FIDE
>>is nonsense.  Mr Elo is spinning in his grave.  SSDF is an narrow pool of
>>silicon players , FIDE is  wide range of human players.  In a narrow pool pf
>>players, the top players(programs) gets overrated when compared to other pools.
>>I call this the "Bloodgood effect" after Claude Bloodgood.  Claude Bloodgood was
>>a strong player, perhaps of master strength who became the second highest rated
>>player in the US by playing nobody but other inmates while incarerated for
>>murdering his mother.  Also , similiar to the SSDF computers , this group of
>>inmates were playing hundreds of rated games per year, far more than the average
>>human player.
>
>Is there any known relation among the ELO of two populations that use same
>calculation scheme and that have different sizes?
>
>I mean does the absolute dimension of the population affect the average ELO?
>
>Furthermore is it known (besides avoinding the error of assigning ELO to people
>having lost al games in the provisional period) what is the effect of the way of
>assigning and initial ELO to the ELO average?
>
>regards
>Franz


Size isn't so important.  Content is.  You won't have the same players,
so the ratings won't be comparable.



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