Derya Ozyurt

icon company The MathWorks, Inc icon location BS in Chemical Engineering, BS in Industrial Engineering, PhD in Chemical Engineering (Process Systems Engineering), P.E.

Results 2 issues of Derya Ozyurt

Potential issues with presolve: incorrect 'optimal' solution and incorrect infeasibiliy detection

14 comment

Greetings, I have two problems where HiGHS returns incorrect results. In the first problem the solution returned is suboptimal and in the second it is incorrectly reported as infeasible. Turning...

MIP
bug
MIP Presolve

When possible, ensure basis and internal solution are propagated when model status is `HighsModelStatus::kUnknown`

1 comment

Greetings, The attached (probably degenerate) problem gives the following output with status "Unknown" (perhaps similar to issue #2015): Coefficient [ranges:] Matrix [1e+00, 1e+00] Cost [1e-02, 2e+03] Bound [7e-03, 7e+04] RHS...

code-quality