A* and how BAB works in Gecode is very different. A* is typically based on
representing the problem by states and then coming up with the right operators
and functions, etc.
Gecode uses constraint programming which has a very different way of modeling
problems. That's why I would suggest to really try a little bit of how models
with constraint programming look like. If you want to get an idea on a more
high-level you could try a modeling language such as MiniZinc:
http://www.minizinc.org/
Cheers
Christian
--
Christian Schulte, https://chschulte.github.io/
Professor of Computer Science, KTH, cschu...@kth.se
Expert Researcher, RISE SICS, christian.schu...@ri.se
-----Original Message-----
From: aqwzsxaqw...@orange.fr [mailto:aqwzsxaqw...@orange.fr]
Sent: Tuesday, March 13, 2018 16:06
To: users@gecode.org; Christian Schulte <cschu...@kth.se>
Subject: RE: RE: [gecode-users] BAB implementation
Hi,
Definitively not a homework. I have to make a technical choice to solve a
planification problem with task/resources/scheduling.
A * will be homogeneous with the rest of the software but CSP with a BAB engine
seems clearly more appropriate to me.
It has been proved in 1984 by Nau/Kumar/Kanal that A* is a special case of a
general BAB formulation and I don't see any reason why it would not be the case
with Gecode, but i was asking some advice to decide !
Moreover, i will maybe have some questions about coding rules in gecode
relative to embedded system.
Philippe
----------------
Le 13/03/2018, à 15:16, "Christian Schulte" <cschu...@kth.se> a écrit :
Hi, I think you will have to do some reading. Smells like homework to me.
Christian
--
Christian Schulte, https://chschulte.github.io/ Professor of Computer Science,
KTH, cschu...@kth.se Expert Researcher, RISE SICS, christian.schu...@ri.se
-----Original Message-----
From: users-boun...@gecode.org [mailto:users-boun...@gecode.org] On Behalf Of
aqwzsxaqw...@orange.fr
Sent: Tuesday, March 13, 2018 15:02
To: users@gecode.org
Subject: [gecode-users] BAB implementation
Hi all,
This is maybe a general question about the B&B and the A* algorithm, But I was
wondering what was the advantage, force, weakness of the Gecode BAB engine over
a A*.
Thanks
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