Forum Discussion
FICO
5 years agoCommunity Manager
Replace box constraints with Ellipsoid robust constraint
Hi I am attempting a robust optimisation problem using the knapsack example 1.2.1 in the robust doc as a template. I calculate the possible % deviation for each variable in the model (P23PERCENT). I...
FICO
5 years agoCommunity Manager
Hi Pietro,
Thank you so much for such a detailed and considered response. The issue is much clearer now. Should I try set the right hand side of the ellipsoidal constraint as the upper limit of the uncertainty set?
Thanks again,
Will
Related Content
Related Content
Xpress range constraint
Using the latest Xpress interface I can add a constraint x_i + y_i <= UB_i for all i like this: xprsProb.addConstraints(nrNodes, i -> sum(x+y).leq(UB)); How can I add a range constraint like: LB_i...1 year agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum1 unread comment1 unread0Views0likes1CommentLazy constraints on LP problems
Dear all, I have an LP problem (no integer constraints) where a large number of constraints can in most cases be avoided in most cases just as for Lazy Constraints. However, lazy constraints seem ...3 years agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum1 unread comment1 unread0Views0likes1CommentI have an optimization model where setting certain variables can lead to constraint violations. Is there a way to identify and remove all infeasible constraints before solving the model?
1 year agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum2 unread comments2 unread0Views0likes2Comments