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  • $\begingroup$ Suppose I had some heuristic that told me with near-certainty that some rows and columns will be removed in any optimal solution. How could I inject that information into this approach? $\endgroup$ Commented Feb 27, 2016 at 21:34
  • $\begingroup$ @tavr If you add a constraint like r[i]==1 you get the optimal solution between those where the row $i$ is removed... $\endgroup$ Commented Feb 27, 2016 at 21:46
  • $\begingroup$ @tavr I added an updated version to force the removal of some rows/columns $\endgroup$ Commented Feb 27, 2016 at 23:00
  • $\begingroup$ Thanks. I can see that this works, and with enough hints about removals, it's quite fast. Probably the best answer so far. $\endgroup$ Commented Feb 27, 2016 at 23:44
  • $\begingroup$ Genious, +1. I have to read up on LinearProgramming $\endgroup$ Commented Mar 3, 2016 at 9:42