Top Questions

3 votes
1 answer
720 views

Scipy.optimize can't get correct answer when objective is Piecewise Linear Function and Equality Constraint

5 votes
2 answers
167 views

Global optimizers handling minimization of expressions like $\log{v}+\frac{1}{v}$

3 votes
2 answers
213 views

Convex equivalent of a constraint

3 votes
2 answers
183 views

Can an Operations Research model optimize on a vector's indexes?

4 votes
1 answer
226 views

Can we add a certain binary row to a matrix which preserves total unimodularity?

3 votes
1 answer
269 views

How to modify master problem and individual sub problems in column generation?

0 votes
2 answers
88 views

Are Metaheuristics Global Optimizer?

1 vote
1 answer
158 views

Lagrangian Relaxation Lower Bound exceeds the Upper bound and the Optimal solution

2 votes
2 answers
123 views

I have found so many tools that can solve optimization problems, I want to know which workflow is the best or the most practical?

2 votes
1 answer
143 views

Why would a solver stay on node 0 and still improve the gap?

1 vote
1 answer
106 views

How to turn off tree search in fico xpress ? Couldn't see relevant documentation

1 vote
1 answer
113 views

How to model the following Constraint

3 votes
1 answer
111 views

What does a solver do with a MIP warmstart solution?

3 votes
1 answer
110 views

Equivalent constraints in MILP give different answers

1 vote
1 answer
104 views

0-1 Knapsack optimization problem

2 votes
0 answers
154 views

Global optimizers handling minimization of an expression arising from the likelihood of a multivariate normal

1 vote
1 answer
87 views

Help with formulating the objective function of my subproblem

2 votes
1 answer
87 views

Assignment of colored boxes to groups

0 votes
2 answers
60 views

Problem 8.17 of Korte and Vygen

1 vote
2 answers
127 views

Multi-precision linear programming solver in C++

2 votes
1 answer
59 views

How to Group IDs Based on the Difference of Each ID’s Min and Max Value?

2 votes
2 answers
96 views

benders decomposition master problem scale large

1 vote
1 answer
96 views

Convex approximation of a constraint

2 votes
2 answers
74 views

Small number of constraints, but very large coefficients

3 votes
1 answer
118 views

Need help understanding robust optimization formulation

0 votes
1 answer
113 views

PuLP is ignoring constraints, and setting everything to 0 for minimization problem

0 votes
1 answer
84 views

How to represent "if $y_{it} = 1$ and $z_{jt'}=1$ then $x_{ij,t+t'}=1$"

0 votes
2 answers
65 views

Sewing lines orders assignment

4 votes
1 answer
102 views
+50

Applications where a very high numeric accuracy is required

0 votes
1 answer
77 views

Deploying optimization model to production environment

1 vote
1 answer
58 views

Information shared among workers in OR-tools CP-SAT

2 votes
1 answer
73 views

Optimizing for an unknown conjugation matrix

2 votes
0 answers
84 views

Re-formulating an LP where a subset of constraints can be loosened?

1 vote
0 answers
84 views

Numerical infeasibility for moving numbers along some specific conversion edges to get maximal number on target node from some starter node

0 votes
2 answers
62 views

How to describe nonlinear programming in gurobipy?

1 vote
0 answers
76 views

CVXPY ECOS and SCS solver stuck in local optima for convex problem?

1 vote
0 answers
75 views

Converting a Linear Program with TU Constraint Matrix to a Nonlinear Convex Model: Solver Performance?

0 votes
1 answer
58 views

Formulation of a stepwise linear approximation

2 votes
0 answers
74 views

Cycling in Ipopt

2 votes
2 answers
71 views

2D bin packing where some items must be packed in the same bin?

1 vote
1 answer
55 views

Weighted sum in the objective function

1 vote
1 answer
55 views

Exploiting identical subproblems in column generation

1 vote
0 answers
69 views

Coding Operation research algorithms

2 votes
0 answers
68 views

How can I derive the sufficient KKT conditions for an SDP?

2 votes
1 answer
64 views

Workforce scheduling problem difficulty

0 votes
1 answer
63 views

Help with implementing my mathematical model in gurobipy

0 votes
1 answer
59 views

Converting a piecewise function to linear equations

2 votes
1 answer
59 views

solver for Travelling Salesman Problem (TSP) with precedence constraints


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