35 karma · joined August 30, 2022
Just stick with AI Studio and the free developer AI along with it; you will be much much happier.
It might also be possible to add problem-specific cuts/heurstics to the solver so that it can solve it fast.
Completely agree that size is not a good proxy for estimating MIP difficulties. Internally we colllected a bunch of very hard problems to sovle from different domains. Some are actually pretty small, say a few thousand variables/constraints. IMHO what made hard problems difficult to solve is actually the 'intneral structure' of the problems. And modern industry solvers all have a lot of built-in heurstics to take advantages of the structures, i.e., what kind of cuts, presolve/diving/branching strategy to apply, how to get the bounds ASAP.
Interestinglly at some point some folks even tried using machine learning to predict strategies. Didn't work quite well back then (10+ years ago). There was some work of using seq2seq for MIP (pointer network, I think) a few years ago; worked OK. So I'm really looking forward to some breakthroughs by LLM.
It's a shame that after IBM aquired ILOG (which owns CPLEX), most of the ppl left for Gurobi.
Those are usually targeted through personal email addresses and device IDs. Impossible to opt out on users' end.
Now they are running out of money and have to cut staff. How ironic!