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Subject: Re: Which of the programs have the most knowledge programmed into it?

Author: Janos Keinrath

Date: 00:02:43 07/13/00

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On July 12, 2000 at 03:55:24, Ed Schröder wrote:

>On July 12, 2000 at 02:31:05, blass uri wrote:
>
>>On July 12, 2000 at 01:13:21, Ed Schröder wrote:
>>
>>>On July 11, 2000 at 23:39:47, Christophe Theron wrote:
>>>
>>>>On July 10, 2000 at 18:55:11, Bruce Moreland wrote:
>>>>
>>>>>On July 10, 2000 at 14:56:31, Christophe Theron wrote:
>>>>>
>>>>>>On July 10, 2000 at 14:15:39, Terry Ripple wrote:
>>>>>>
>>>>>>>I know Hiarcs7.32 is one of the most knowledge based programs, but what about
>>>>>>>the famous Shredder4, Rebel Century and Junior6? Where do they average on
>>>>>>>knowledge in comparison?
>>>>>>>
>>>>>>>Best regards,
>>>>>>>terry
>>>>>>
>>>>>>
>>>>>>For me the answer is easy. I know others will disagree...
>>>>>>
>>>>>>The program that knows the most about chess, and has the most relevant
>>>>>>knowledge, is the one that stands the highest in the rating lists.
>>>>>>
>>>>>>
>>>>>>    Christophe
>>>>>
>>>>>I don't think this is a very good definition, although nobody ever defines it
>>>>>when they ask which program has the most.  I think that what people mean when
>>>>>they say "knowledge" is that a program with more knowledge plays more like a
>>>>>strong human and less like a typical computer, since everyone would agree that a
>>>>>GM human typifies "knowledge".
>>>>>
>>>>>People want "knowledge" in a program because they think they can learn from
>>>>>seeing it expressed.  They want knowledge because they want to ask questions of
>>>>>something knowledgeable and get answers.
>>>>>
>>>>>This has little to do with which robot whacks the other robots.  Computers can
>>>>>play chess in a vacuum, if desired.  It's an interesting thing to do, and lots
>>>>>of people are interested in doing it.  But other people are interested in
>>>>>interacting with the program themselves.
>>>>>
>>>>>bruce
>>>>
>>>>
>>>>
>>>>I did not say "computer rating lists" but just "rating lists".
>>>>
>>>>My definition is the most explicit and the closest to what a mathematical
>>>>definition could be that I have ever heard.
>>>>
>>>>Can you give a better definition yourself ?
>>>>
>>>>Who is going to argue that the program that has the best knowledge about chess
>>>>is the program that wins more games than the other ones ???
>>>>
>>>>What other way of measurement are you thinking about ?
>>>>
>>>>If we were talking about humans, wouldn't you agree that the player who has the
>>>>best knowledge about chess is the one that wins more games?
>>>>
>>>>
>>>>
>>>>    Christophe
>>>
>>>I think that comp-comp is about ply-depth (the program with the deeper depth
>>>generally wins).
>>
>>I do not think that the deeper depth is defined.
>>Programs use different extensions rules and different pruning rules.
>
>I was speaking in general. In general this is a rule of thumb (ever been
>since day one of computer chess).
>
>
>>> In human-comp playing style, strategic understanding, and
>>>having the initiative are the main items and that ply-depth comes after that.
>>
>>programs can see strategic good moves by deeper ply-depth.
>
>Of course. Only that the order is different. To be more precise:
>
>COMP-COMP:
>1) depth (60%)
>2) playing style (20%)
>3) initiative (15%)
>4) strategic (5%)
>
>HUMAN-COMP
>1) playing style (30%)
>2) initiative (25%)
>3) strategic (25%)
>4) ply-depth (20%)
>
>Now you can argue about the given percentages but for me this picture
>is true. IMO. For instance in comp-comp it does not matter that both
>programs do not understand a strategic position, they both fail. In
>human-comp it is a matter of life or dead (winning or losing).
>
>Ed
>
>
>>Uri


Hi Ed!

Could you give me a hint how can I tell for my program what is the
initiative, or how can I measure it?

Janos



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