Re: [eclipse-users] Speed Up Constraint Imposing Time in ECLiPSe

On comp.constraints you wrote that you have about 50000 constraints. I don't
think that "imposing" them will be performance bottleneck - rather SOLVING
them will be.

A.L.

P.S. Could you synchronize this what you write here and on
comp.constraints?...

> -----Original Message-----
> From: 
> eclipse-users-bounces+lewando=attglobal.net_at_...2... 
> [mailto:eclipse-users-bounces+lewando=attglobal.net_at_...29...
> p.com] On Behalf Of David Tian
> Sent: Saturday, March 22, 2008 5:17 PM
> To: ECLiPSe Users List
> Subject: [eclipse-users] Speed Up Constraint Imposing Time in ECLiPSe
> 
> 
> Hi,
> 
> My problem is a data mining problem (a discretization 
> problem) and I modelled it as a constraint satisfaction 
> optimization problem (CSOP)  
> and implemented the CSOP using the ic library of ECLiPSe. For  
> different instances of problems, the CSP consists of different total  
> number of constraints. However, when the number of constraints  
> increases, the time to impose them goes increases rapidly. To impose  
> 28552 constraints, it takes 261.70 seconds. There can be large  
> problems with more constraints than this problem, this makes my CSOP  
> inefficient.
> 
> I imposed all the constraints one by one using a loop. I am 
> wondering  
> if there is another way to impose the constraints in ECLiPSe 
> to speed  
> up the constraint imposing time.
> 
> For your interest, my paper describing the problem and CSOP is at:  
> http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=4295437
> 
> many thanks and regards,
> 
> David
> 
> 
> 
> 
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