[rules-dev] [solver] ITC2007 competition results

[Edson Tirelli]

   Very good Geoffrey! Congratulations!

2008/4/22 Geoffrey De Smet <ge0ffrey.spam at gmail.com>:

> Hi guys,
>
> I finished 4th with my drools-solver implementation of the examination
> track:
> http://www.cs.qub.ac.uk/itc2007/winner/finalorder.htm
>
> There's much to learn from the other implementations for drools-solver.
> For example, the winner is also using local search (as are most of the
> others), but he use meta-heuristics to run 3 phases instead of 1, selects
> his moves a lot smarter and just basically tweaked his configuration a lot
> better.
>
> Surprisingly, I actually got the best overal result on dataset10: it will
> be interesting to find out why (could be tweaking luck though).
> I 'll be identifying the features which drools-solver is missing and
> incorporating them soon.
> Since the end of the competition, the trunk has already gained 10%
> performance (due to removing shadow facts etc).
>
> I've also done an implementation of the curriculum course track after the
> competition ended, in less than 16 workings hours.
> The mere development speed, maintainability and runtime performance (after
> initialization...) of DRL score rules is very very promising.
>
> --
> With kind regards,
> Geoffrey De Smet
>
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>



-- 
Edson Tirelli
JBoss Drools Core Development
Office: +55 11 3529-6000
Mobile: +55 11 9287-5646
JBoss, a division of Red Hat @ www.jboss.com
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