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Operations Research

Enlightened

 Enlightened
First to answer and accepted with score of 10 or more. This badge can be awarded multiple times.
Awarded 174 times.
How to solve this linear program with an exponential number of constraints?
Awarded Jun 4 at 16:56
When are Jupyter Notebooks used to solve optimization problems in Operations Research?
Awarded Jan 15 at 1:18
Interpretation of a subtour elimination constraint in the TSP
Awarded Nov 26, 2023 at 4:16
When is the McCormick envelope exact?
Awarded Nov 13, 2023 at 8:06
Conditional Controls in MIP Models
Awarded Oct 22, 2023 at 18:03
Complicated constraint with logical operators in PuLP
Awarded Oct 21, 2023 at 16:27
Linear programming with if-then-else (big-M)
Awarded Oct 18, 2023 at 11:32
Is there an open-source equivalent to LocalSolver?
Awarded Sep 12, 2023 at 19:51
No, Gurobi, I really do want this variable to be binary
Awarded Aug 16, 2023 at 19:02
Rewriting if-then constraints of binary summations
Awarded May 31, 2023 at 7:51
Significant bias introduced into simple simulation
Awarded May 7, 2023 at 15:49
How is optimization under uncertainty done in real world applications?
Awarded May 1, 2023 at 18:02
Linear Programming - Motivation behind the Dual Simplex Method
Awarded Apr 26, 2023 at 10:26
State-of-the-art algorithms for solving linear programs
Awarded Apr 10, 2023 at 5:34
Integer column generation without branch & price
Awarded Mar 9, 2023 at 19:50
Quadratic constraints in JuMP
Awarded Feb 22, 2023 at 13:11
Mixed-integer optimization with bilinear constraint
Awarded Feb 11, 2023 at 22:26
If-Then-Else modeling in MILP using the Big M method
Awarded Feb 5, 2023 at 18:57
Solving maximization problem with linear-fractional sum
Awarded Dec 20, 2022 at 20:42
MIP constraint with sum of decision variables having certain value : $\sum_{i=1}^nx_i = 2 \implies \delta = 1$
Awarded Dec 12, 2022 at 18:50
Is there a Linear Programming Library that natively supports fractions instead of floating point arithmetic?
Awarded Nov 22, 2022 at 18:26
Is upper incomplete gamma function convex?
Awarded Nov 20, 2022 at 13:58
Ideal programming language for an operations researcher
Awarded Nov 15, 2022 at 4:27
Termination Criteria of Solver in Pyomo
Awarded Oct 20, 2022 at 22:25
Good references for reduced cost fixing?
Awarded Oct 18, 2022 at 4:36
Linearize minimum and maximum constraint with variable and constant
Awarded Oct 10, 2022 at 18:02
What exactly is the optimality-gap or what does it say in integer linear programming?
Awarded Oct 4, 2022 at 9:47
Is there a better way of defining a constraint on positive integer variables such that no two variables are the same and are uniquely assigned a value
Awarded Jul 28, 2022 at 20:17
Verifying optimality of heuristic solutions
Awarded Jul 20, 2022 at 10:57
Python vs. compiled languages in OR research using metaheuristics
Awarded Jun 15, 2022 at 6:32
Where is the original Dantzig Simplex 1947 paper?
Awarded Jun 10, 2022 at 10:57
Books for integer and mixed integer programming
Awarded May 15, 2022 at 9:16
Express equality constraint involving exponentials cones
Awarded May 4, 2022 at 0:32
Areas of mathematics to strengthen if interested in OR
Awarded Apr 26, 2022 at 22:56
Linearizing this absolute difference objective function $\min\sum_{i=1}^{I}\sum_{j=1}^{i}|x_i-x_j|$
Awarded Apr 6, 2022 at 10:16
Can the primal Simplex Method walk all optima in linear time?
Awarded Mar 8, 2022 at 13:18
Why does some solvers can only solve conic optimization problems?
Awarded Feb 22, 2022 at 13:46
No "not equals" constraint in Gurobi
Awarded Feb 3, 2022 at 15:07
CPLEX gives different solutions of MILP every run
Awarded Jan 31, 2022 at 17:51
RAM requirement for optimization problems
Awarded Jan 10, 2022 at 0:46
CPLEX log always the same after hours ("Gap" and "Best Integer" always blanks)
Awarded Dec 31, 2021 at 17:11
Has the expressibility of 'non-integrality testing' as extension to MILP been studied before?
Awarded Dec 2, 2021 at 1:32
Why does the design of heuristics require considerable domain knowledge?
Awarded Nov 5, 2021 at 0:17
When is a formulation with min function an ILP problem?
Awarded Oct 18, 2021 at 9:40
Name for this ILP problem type
Awarded Oct 17, 2021 at 23:12
How to model: If $X\ge\epsilon$ then $X\ge Y$
Awarded Sep 28, 2021 at 15:35
Which Python package is suitable for multiobjective optimization
Awarded Sep 21, 2021 at 21:32
Is Apple's M1 suitable for Operations Research?
Awarded Sep 17, 2021 at 2:10
Scenario Generation and Reduction in Stochastic Optimization
Awarded Sep 15, 2021 at 5:57
Softwares for Operations Research. Is Excel Outdated or Useless for the OR industry?
Awarded Sep 14, 2021 at 8:27
How to formulate the constraint If $x = k$, then $y = c$?
Awarded Sep 10, 2021 at 8:40
How to linearize a constraint with a maximum of a linear function
Awarded Aug 31, 2021 at 0:26
Does it make sense to use strict equality constraints in optimization?
Awarded Aug 11, 2021 at 15:05
Formulating two non-negative variables without binary and/or big-M
Awarded Jul 27, 2021 at 3:35
ILP Constraint to ensure exactly one constraint from a set of constraints is satisfied
Awarded Jul 26, 2021 at 3:17
How to run MOSEK solver in CVXOPT
Awarded Jul 20, 2021 at 15:26
How to represent an integer variable via binary variables?
Awarded Jul 5, 2021 at 18:57
MILP - stronger models
Awarded Jul 5, 2021 at 18:57
Solving Quadratically Constrained Quadratic Program with Cross Product Terms Only
Awarded Jun 28, 2021 at 12:27
How to set a limit for a switch to 0 of a variable for 2 variables combined
Awarded Jun 20, 2021 at 1:11
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