Re: [Wasa-users] Re: Re: WASA

[Niclas O. <gu...@ac...>]

Laurent Caillette wrote:
>>ASA however looks like a fairly simple algorithm (at
>>least to understand), is this observation correct or
>>simply an illusion based on good explanation in the
>>paper?
> 
>  
> The paper describes a generalistic approach, but does
> not explain everything you should know about Tabu List
> management or things like that. We had some hard times
> for understanding what was *really* happening in the
> system (though coding may appear simple).

I know more now. I've read about generic approaches, local 
searchmethods, etc.

> BTW we're interested by your feedback about JCL. We
> believe that CSP is a *great* tool, and we want to
> keep an eye on what's happening here.

The honest feedback is that it's a programming disaster (to say the 
least), but works. I couldn't make sense of the algortithms implemented 
when comparing them to the psuedo code. So I trashed it and started on 
something new myself, sorry. I also like the way ILOG works with 
heuristics for instantiation so I have something like that now. I also 
like the propagation model ILOG uses so I added that. I used to do VRML 
earlier and the propagation works almost the same there, so I'm used to 
thinking in thouse terms. I'm also re-implementing all algorithms that I 
want, now using revertable objects. Might now be the fastest, but it 
sure makes it simple. I had the first algorithm, simple back tracking, 
working on this framework tow days ago now.

But I like WASA a lot, in fact I like it more than any other I've seen 
so far. My boss likes it too. So we are probably going to work out a 
model where we can use our own, WASA, or ILOG JSolver depending on what 
the case might be.

Cheers,
/Niclas