Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: PB-ON vs PB-OFF (results experiment-1)

Author: Harald Faber

Date: 08:48:19 10/10/99

Go up one level in this thread


On October 10, 1999 at 10:07:11, Robert Hyatt wrote:

>On October 10, 1999 at 03:22:13, Harald Faber wrote:
>
>>On October 10, 1999 at 03:14:10, Ed Schröder wrote:
>>
>>>PB-ON vs PB-OFF (results experiment-1)
>>>
>>>To enrich the discussion about the value of the "Permanent Brain" (PB) I
>>>have started 2 experiments with Rebel Century (RC) which will give some
>>>data for a better judgement.
>>>
>>>Experiment-1:
>>>RC (PB=ON) vs RC (PB=OFF)
>>>100 auto232 games
>>>Time control: 60 secs average.
>>>Hardware: 4xPII-266 + 2xPII-450
>>>Result: 61-39
>>>
>>>Experiment-2:
>>>RC (PB=ON) vs RC (PB=OFF)
>>>100 auto232 games
>>>Time control: RC (PB=ON) 30 sec average
>>>Time control: RC (PB=OFF) 60 sec average
>>>Hardware: 4xPII-266 + 2xPII-450
>>>Status: in progress
>>>
>>>Ed Schroder
>>
>>Sorry Ed, but where is the sense in it? Is there any difference than playing
>>Rebel10-Rebel9 which is also meaningless?
>>Would you expect a result of 50-50 when both playing PB=on or both PB=off? I
>>wouldn't.
>>I think the most interesting idea is to take Rebel+PB=on against another program
>>with PB=on and as comparison play the same match with both PB=off. Of course you
>>can extend this to Rebel+PB-vs-Opp X PB=off and Rebel PB=off vs Opp X PB=on.
>>
>>But Rebel vs Rebel, sorry, there is really no sense in it.
>
>
>It is the perfect way to find out what PB is worth with no other degrees of
>freedom in the experiment.  Different programs would break the experiment as
>you start off with two variables, (a) program characteristics and (b) PB on/off.

(a) is no disadvantage, it is advantage! It doesn't break, it makes it senseful!
Read my other post.

>using two programs is an ok idea, but this approach does highlight the
>difference between PBon and PBoff pretty clearly.

??
Wasn't it you who once argued against playing a program vs the predecessor, so
where is the difference now when playing the same program against itself??
I wouldn't even expect a 50% score both programs playing with the same settings.




This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.