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Re: [Help-glpk] SOS1/SOS2 in GLPK?

From: xypron
Subject: Re: [Help-glpk] SOS1/SOS2 in GLPK?
Date: Fri, 16 Oct 2009 03:11:19 -0700 (PDT)

Hello Kretch,

please, have a look at the following note by Robbie Morrison: SOS2 constraints in

Best regards


Yaron Kretchmer-2 wrote:
> Hi There.
> At work i encounter a lot of "SOS' type problems - mostly when i want to
> model "choose exactly one member of a group". Currently I model this with
> binary variables, whose sum i constraint to be less than 1. Modeling this
> using SOS seems like a better approach- more compact, and also could yield
> better MIP results.
> Are SOS's supported in glpk? If not, any reason why?
> Thanks
> Kretch
> _______________________________________________
> Help-glpk mailing list
> address@hidden

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