https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/493957#M2392 <P>I want to get some background information of SAS/OR, focus on infeasibility diagnostics using IIS (irreducible infeasible system/set). I wonder which method is used for getting IIS? filter or additive? Thank you!</P> Sun, 09 Sep 2018 21:02:28 GMT Germs 2018-09-09T21:02:28Z https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/493957#M2392 <P>I want to get some background information of SAS/OR, focus on infeasibility diagnostics using IIS (irreducible infeasible system/set). I wonder which method is used for getting IIS? filter or additive? Thank you!</P> Sun, 09 Sep 2018 21:02:28 GMT https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/493957#M2392 Germs 2018-09-09T21:02:28Z https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/493986#M2393 <P>Sensitivity filter and deletion filter.&nbsp; See <A href="https://go.documentation.sas.com/?docsetId=ormpug&amp;docsetTarget=ormpug_lpsolver_details15.htm&amp;docsetVersion=14.3&amp;locale=en" target="_self">this section</A> of the documentation.</P> Mon, 10 Sep 2018 02:19:10 GMT https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/493986#M2393 RobPratt 2018-09-10T02:19:10Z https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/495128#M2394 <P>Thank you so much!</P> Thu, 13 Sep 2018 02:02:34 GMT https://communities.sas.com/t5/Mathematical-Optimization/SAS-OR-in-LP-MIP-which-method-is-used-for-detecting-IIS/m-p/495128#M2394 Germs 2018-09-13T02:02:34Z