[rules-dev] [solver] ITC2007 competition results

[Mark Proctor]

extjs has just had a license change. This impacts our BRMS. We are 
currently looking to fork the code and seeing how it can be sponsored. 
If you use this extjs in your company and willing to commercial sponsor 
this fork, please let me know.

Mark
Edson Tirelli wrote:
>
>    Very good Geoffrey! Congratulations!
>
> 2008/4/22 Geoffrey De Smet <ge0ffrey.spam at gmail.com 
> <mailto: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 <http://www.jboss.com>
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