Author: Christophe Theron
Date: 11:00:25 03/29/01
Go up one level in this thread
On March 29, 2001 at 11:22:49, Robert Hyatt wrote:
>On March 28, 2001 at 15:31:57, Christophe Theron wrote:
>
>>
>>
>>Last time I checked it was 70 elo for doubling, and I have computed these
>>figures from the SSDF list (not the latest however).
>>
>>Some people say 70 will not be sustained for higher and higher speeds (depths),
>>and if it is the case then the gain for a dual is going to be less than what I
>>have written.
>>
>>
>>
>>
>
>
>I think that is an interesting thing to discuss. IE so far, I have not
>seen _any_ evidence that says 2x faster today doesn't help as much as 2x faster
>a year ago. Many "feel" that there must be some sort of asymptotic behavior
>but so far there is no proof. In fact, there is ample evidence that for the
>next few doublings, we will continue to get just as much improvement as we
>did in the past. Newborn wrote a paper discussing this. Heinz followed up
>with a verification experiment. Both show that deeper searches will _continue_
>to improve playing skill for a good while yet.
Yes.
>yes, it is very probable that 20 years ago a doubling would be worth more
>than 70 points. But it seems to have stabilized to around 70 for a long
>while now.
Yes.
The idea of dimishing returns has not been proved so far, and maybe it is wrong,
who knows.
One thing we can certainly agree on, is that doubling the speed is not goint to
provide more and more ELO as depth increase.
So 70 ELO for a doubling is probably an upper bound (at current search depths on
current computers as tested by the SSDF).
Christophe
>And no, I am _not_ talking about each doubling walking the computers up the
>FIDE rating list by 70 points. I doubt doubling is worth much at all when
>playing humans in the top 30 or so. But in pure comp vs comp games, give
>me that factor of 2x every time. It will swing the balance in my favor for
>a long long time I think.
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