Re: [rules-users] rule algorithm

Looks like a job for a query. http://downloads.jboss.com/drools/docs/4.0.7.19894.GA/html/ch06s06.html Query for all matching certainties/weights in working memory. Loop through them to perform calculation. --- On Fri, 8/29/08, thomas kukofka <thomaskukofka(a)web.de&gt; wrote: > From: thomas kukofka <thomaskukofka(a)web.de&gt; > Subject: [rules-users] rule algorithm > To: "Rules Users List" <rules-users(a)lists.jboss.org&gt; > Date: Friday, August 29, 2008, 9:08 AM > Hello, > > I search a rule implementation for the following > calculation: > I have n Objects of differents types (A, B, C, ...) each > with a parameter > certainty. > > the overall certainty is calculated as follows: > certaintyOverall = > (certaintyA * weightA + certaintyB * weightB + ... ) / > (weightA + weightB + > ...) > > If it can be assumed that all Objects in the formula always > exist it's quite > easy: > when > A (certaintyA: certainty) > B (certaintyB: certainty) > ... > then > certaintyOverall = (certaintyA * weightA + certaintyB * > weightB + ... ) / > (weightA + weightB + ...) > > But if one ore more objects are missing the formula should > be reduced to the > certainty and weights of the existing objects. But there > are too many > combinations of existing/nonexisting objects. How can this > be implemented in > Drools? > > Regards > Thomas > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users