Re: [computer-go] UCT article

2007-02-21 Thread Thomas Johnson

It's funny to English-speakers because when we think of marbles, we're
thinking of something like this
http://www.atoygarden.com/images/products/Marbles300.jpg


Some games are played with marbles, but since in English the go pieces are
called "stones" the concept of playing Go with marbles evokes images of
white and black marbles rolling around the board. The reporter just got
confused.

On 2/21/07, Sylvain Gelly <[EMAIL PROTECTED]> wrote:



my favorite line:
>
> "In Go all marbles are identical..."
>

My English prevent me to understand the subtlety here.
Is there any relation to "the type of stone" meaning of marble?

Sylvain

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Re: [computer-go] Can a computer beat a human?

2007-01-24 Thread Thomas Johnson

Turing Machines have an infinite tape -- I'm glad you set us straight on
that.

-Tom

On 1/24/07, Don Dailey <[EMAIL PROTECTED]> wrote:


On Wed, 2007-01-24 at 21:11 +0100, alain Baeckeroot wrote:
> With 10^170 legal position for 19x19 what would be the size of this
> table ?
> I m afraid we cannot build it with all the matter in visible
> universe.

I think the computer science greats should have consulted you before
writing their textbooks - I just looked at this crazy thing called a
"turing machine" in one of my textbooks.

A universal turing machine supposedly has an infinite tape attached to
it.   Maybe they are smart about  computers, but they don't know
anything
about physics.   I think all these textbooks need to be thrown out
because they are obviously of no practical value.

- Don


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Re: [computer-go] Can a computer beat a human?

2007-01-24 Thread Thomas Johnson

Nah, hash tables are amortized O(1). As long as you can address all that
memory, 300MHz should be sufficient.

On 1/24/07, Chris Fant <[EMAIL PROTECTED]> wrote:


> Since no one has mentioned bounding memory, a complete lookup table (a
> complete table of correct moves, perfect-hashed by board state) should
do
> the trick.
>
> cheers
> stuart

You're going to need more than 300MHz to do that lookup.
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[computer-go] Best computer go development library?

2007-01-23 Thread Thomas Johnson

Hi folks,

I'm interested in doing some experiments in developing a computer go
algorithm. I definitely don't want to rewrite any of the basic stuff (board
management, scoring, etc) if it's already available somewhere. What's the
best library available (if any) for doing this kind of thing? If it makes a
difference, I'll probably be writing in C++ on Linux or C# on Windows,
depending on the software available for each.

Thanks
Tom
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