Announcement: Gecode 1.0.0 released

[Twan van der Schoot]

Hi Russ, Christian,

I recall that in Patrick H. Winstons's "Artificial Intelligence, 2nd
Edition" from 1984 a spreadsheet was mentioned as an example of "propagating
numeric constraints" in a section called "Spreadsheets Propagate Numeric
Constraints through Add-multiplier Nets" on page 74 (Yes, I looked it up :)

But as far as I understand, what gencode & mozart-oz try to achieve is very
different from the example above.

regards

/Twan



> -----Original Message-----
> From: users-bounces at mozart-oz.org [mailto:users-bounces at mozart-oz.org]On
> Behalf Of Christian Schulte
> Sent: donderdag 19 januari 2006 10:03
> To: Russ.Abbott at GMail.com
> Cc: users at mozart-oz.org
> Subject: RE: Announcement: Gecode 1.0.0 released
>
>
> Actually, there has been a company trying to sell constraint
> programming as
> a spreadsheet. I don't think it still exists. But I have no details.
>
> But just by googling "constraint programming spreadsheet" you will find a
> paper reporting on how cp is integrated into OpenOffice. Didn't
> check myself
> though.
>
> To me it is not so clear whether a spreadsheet is really the
> right thing to
> have as I am not so sure how many people out there are really spreadsheet
> power users who could benefit. Maybe most people only edit a cell here and
> there? But maybe I am wrong.
>
> Christian
>
> --
> Christian Schulte, http://www.imit.kth.se/~schulte/
> -----Original Message-----
> From: Russ Abbott [mailto:russ.abbott at gmail.com]
> Sent: Wednesday, January 18, 2006 10:44 PM
> To: schulte at imit.kth.se
> Cc: users at mozart-oz.org
> Subject: Re: Announcement: Gecode 1.0.0 released
>
>
> Hi Christian,
>
> It sounds terrific.  I wish I had time to work on this.  If I did I'd want
> to look into building an interface between Gecode and the OpenOffice
> spreadsheet.
>
> It seems to me that one thing that's kept constraint programming from the
> masses is that one has to be a programmer to use it.  If it were somehow
> available though a familiar interface like a spreadsheet (even in
> a limited
> form), I think it would become much more widely known and used.  (It might
> also help OpenOffice take marketshare from Excel.)
>
> What do you think?  How hard would it be to do something like
> this in a way
> that would provide a useful feature for spreadsheet users?
>
>
> --
> -- Russ Abbott
> _____________________________________________
> Professor, Computer Science
> California State University, Los Angeles
> o Check out my blog at http://russabbott.blogspot.com/
> On 1/18/06, Christian Schulte <schulte at imit.kth.se> wrote:
> [I think that this might be of some interest as Gecode inherits
> some ideas (computation spaces) from Oz. Christian.]
>
> We would like to announce the release of
>
>                Gecode 1.0.0
>           http://www.gecode.org/
>
> Gecode is an open, free, portable, accessible, and efficient
> environment for developing constraint-based systems and
> applications:
>
> open
>   Gecode is radically open for programming: it can be easily
>   interfaced to other systems. It supports the programming of
>   new propagators (as implementations of constraints), branching
>   strategies, and search engines. New variable domains can be
>   programmed with the same efficiency as the finite domain and
>   integer set variables that come predefined with Gecode.
>
> free
>   Gecode is distributed under a BSD-style license. All of its
>   parts including documentation, implementations of global
>   constraints, and examples are available as source code.
>
> portable
>   Gecode is implemented in C++ that carefully follows the C++
>   standard. It can be compiled with modern C++ compilers and
>   runs on a wide range of machines (including 64bit machines).
>
> accessible
>   Gecode comes with extensive reference documentation that allows
>   to focus on different programming tasks like modelling,
>   implementing propagators, and implementing variable domains.
>
> efficient
>   Gecode offers competitive performance with respect to both
>   runtime and memory usage.
>
> allows contributions
>   Gecode is designed to facilitate contributions on top of
>   it. CP(Graph) and CP(Map) providing graph and map variables for
>   constraint programming is available as a first contribution
>   built on top of Gecode.
>
>
> Gecode and contributions built on top of it are available from
>        http://www.gecode.org/
>
> --
> Christian Schulte, http://www.imit.kth.se/~schulte/
>
>
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