Forum Discussion
FICO
10 years agoCommunity Manager
Xpress Nonlinear Improvements Presentation
Xpress Nonlinear Improvements Presentation
Presented at the INFORMS Conference in Philadelphia, November 2015.
No RepliesBe the first to reply
Related Content
Related Content
How to improve Bestbound?
e.g. my optimal solution for this dataset is 116. it reaches 116 within 1000 seconds but bestbound is still close to 0. Optimization part: multiplier=ub_nal * (QUARTERS[-1] - 1) + 1# spread of coef...6 months agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum4 unread comments4 unread0Views0likes4CommentsIssue building a nonlinear expressions with Xpress python package
Hello, I was building a nonlinear expression but came across a strange behavior. I am trying to produce (1 / (a + b) ) but all that I am getting is (1 / a + b ). Below is a minimal example that s...1 year agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum2 unread comments2 unread0Views0likes2CommentsImproving suboptimal solution for a network design problem
I'm solving a rather large network design problem (Xpress 9.2.4, python interface). Here's a very simplified version of the integer programming formulation. Variables: - y_ij: integer variable repr...2 years agoPlace FICO® Xpress Optimization ForumFICO® Xpress Optimization Forum1 unread comment1 unread0Views0likes1Comment