[gecode-users] edge-finder propagator

Filip Konvička filip.konvicka at logis.cz
Fri Aug 22 08:38:11 CEST 2008


Hi Jan,

> thank you for the reply. I forgot to mention that we are implementing 
> disjunctive edge-finder.

at

    http://kti.mff.cuni.cz/~vilim/

you'll find some interesting papers, one of which is

   "O(n log n) Filtering Algorithms for Unary Resource Constraint"
   http://kti.mff.cuni.cz/~vilim/nlogn.pdf

That's pretty easy to implement. You can also derive a branching for 
first/lasts quite easily from that.

Hope this helps,
Filip





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