Operations Research
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RobPratt's user avatar
RobPratt's user avatar
RobPratt
  • Member for 4 years, 5 months
  • Last seen this week
  • NC, USA
Profile Activity

470 Answers

Score Activity Newest
24 votes

How to linearize the product of two binary variables?

20 votes
Accepted

How to linearize membership in a finite set

18 votes

Can the (famous) "Problem of Apollonius" be Considered as a "Constraint Optimization" Problem?

18 votes

TSP with revenue maximization

17 votes

Is there a Linear Programming Library that natively supports fractions instead of floating point arithmetic?

16 votes
Accepted

Expressing a chain of boolean ORs using ILP

15 votes

How can we write a binary variable as a power to a constant number?

14 votes
Accepted

Bin Packing with Relational Penalization

13 votes
Accepted

Why isn't $x_2+x_3+x_4\le 2$ a cutting plane?

12 votes
Accepted

Standard cumulative distribution function with optimization model variable

12 votes
Accepted

Help with formulating an implication

12 votes
Accepted

Linearize x different of y in ILP

12 votes

Is it possible to identify all possible Irreducible Infeasible Sets (IIS) for an infeasible Integer Linear Programming problem? (ILP)?

12 votes
Accepted

MILP - stronger models

12 votes

MILP Penalty Function Only for Negative Values

12 votes

Valid Inequality Example (Wolsey Example 9.3)

11 votes

Constraint for two binary vectors to be different

11 votes
Accepted

How to transform a logical constraint with integer variables?

11 votes
Accepted

Constrained optimization of a sum

11 votes
Accepted

How to linearize a constraint with a maximum of a linear function

11 votes

Gurobi: how to add a constraint to make there be only one non-integer value

11 votes
Accepted

How to partition a graph with optimal number of groups?

11 votes
Accepted

Solving Quadratically Constrained Quadratic Program with Cross Product Terms Only

11 votes
Accepted

Name for this ILP problem type

11 votes
Accepted

When is a formulation with min function an ILP problem?

11 votes
Accepted

How can I strengthen a family of constraints in the presence of a clique constraint?

11 votes
Accepted

How to model bicycle sharing scheme?

11 votes
Accepted

Formulating two non-negative variables without binary and/or big-M

11 votes
Accepted

MIP: If integer variable $>0$ it should be equal to other integer variables $>0$

11 votes

Best model for precedence constraints within scheduling problem

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