From: Diego Olivier Fernandez Pons <Diego.FERNANDEZ_PONS@etu.upmc.fr>
To: Christophe Raffalli <christophe.raffalli@univ-savoie.fr>
Cc: caml-list <caml-list@inria.fr>
Subject: Re: [Caml-list] Sudoku solver
Date: Tue, 15 Nov 2005 20:05:06 +0100 (NFT) [thread overview]
Message-ID: <Pine.A41.4.44.0511152000210.1589458-100000@ibm1> (raw)
In-Reply-To: <4379F37C.2010408@univ-savoie.fr>
Bonjour,
> And what about a sudoko generator with a pertinent notion of level for a
> human ? Would be nice if you could choose the cases that are filled from
> start ...
Actually that is what Helmut Simonis was trying to do with his paper.
He considers :
- difficulty (= level of "complexity" of the filtering algorithm needed to
solve the problem without backtracking)
- minimality (= number of non-redundant information for each deduction)
> These are not formal definition ... yet, but using a representation of
> the problem as a set of close, I think we can do something with the
> complexity of the proof search ...
Constraint programming is has a higher-level representation but I guess
the same could be achieved in SAT.
Diego Olivier
next prev parent reply other threads:[~2005-11-15 19:05 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-11-15 4:27 Jon Harrop
2005-11-15 8:55 ` [Caml-list] " Alain Frisch
2005-11-15 9:23 ` Diego Olivier Fernandez Pons
2005-11-15 12:56 ` Pascal Brisset
2005-11-15 13:22 ` Diego Olivier Fernandez Pons
2005-11-15 13:32 ` Pascal Brisset
2005-11-15 14:41 ` Christophe Raffalli
2005-11-15 19:05 ` Diego Olivier Fernandez Pons [this message]
2005-11-15 19:37 ` David Thomas
2005-11-16 6:07 ` Jon Harrop
2005-11-16 7:25 ` Alain Frisch
2005-11-15 20:56 ` Karl Zilles
2005-11-16 8:00 ` Oliver Bandel
2005-11-16 8:15 ` Alain Frisch
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