On Mon, Nov 09, 2009 at 02:46:11PM +0100, Alain Baeckeroot wrote:
> Le 09/11/2009 à 08:04, Jessica Mullins a écrit :
> >
> > Hi,
> >
> > I am wondering what is the best way to build a Joseki Book? I am a student
> > at
> > Lewis & Clark College and am working with Professor Peter Drake to build a
> > Joseki Book for the program Orego.
> >
> > Right now I am extracting moves from professor players and saving those
> > into a
> > database. Then if during game play a position is contained in the database,
> > play the response move like the professional. I am just wondering what other
> > people have done to build a Joseki Book, or if anyone knows of any papers
> > that
> > might be helpful.
> >
>
> I don't knwo how to build such a book, but
> "Kogo's Joseki dictionnary" is a huge .sgf file containging joseki + trick
> moves and punishment. Maybe it can be parsed to extract only joskis.
It has "* GOOD VARIATION *" and "* BAD VARIATION *" marks in some
branches, I think you should get a pretty good coveraged by just taking
these branches into consideration. But for something basic, I think
re-using Gnugo database would be easiest. The other extreme is automatic
pattern extraction from professional games database, either by
extracting actual general patterns (see Remi Colulom's seminal paper) or
by attempting to isolate only joseki sequences (a way to define a joseki
sequence could be something like: subsequence of a game starting in an
empty corner and with each move in distance <=2 of some previous joseki
move, terminated as soon as a move appears that could either be part of
two joseki sequences or appears in distance 3<=x<=5 of the joseki
stones).
--
Petr "Pasky" Baudis
A lot of people have my books on their bookshelves.
That's the problem, they need to read them. -- Don Knuth
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