RobPratt's user avatar
RobPratt's user avatar
RobPratt's user avatar
RobPratt
  • Member for 4 years, 10 months
  • Last seen this week
  • NC, USA
1 vote

Efficient Algorithm for Scheduling 140 Predefined 1:1 Meetings with Variable Participant Constraints Over 7 Slots?

1 vote

Add second "constraint" to model a binary variable

1 vote

Why this ILP and LP are equivalent?

6 votes
Accepted

linearizing a constraint involving an absolute function

6 votes
Accepted

How to maximize the number of variables with value at least 0?

1 vote
Accepted

Complexity of average maximum completion time

2 votes

multiple shifts per day constraint for a workforce scheduling problem

4 votes
Accepted

How to linearize this L0 norm of a vector?

4 votes

Connections between Bounds in MIPs

3 votes

Modelling L-0 norm of a vector

4 votes
Accepted

How to model this constraint for a QP problem?

1 vote

Implementing column generation in SAS

2 votes
Accepted

0-1 Knapsack optimization problem

2 votes

Problem 8.17 of Korte and Vygen

3 votes

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

2 votes
Accepted

Assignment of colored boxes to groups

3 votes
Accepted

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

3 votes
Accepted

How to model the following Constraint

6 votes
Accepted

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

2 votes

Help with formulating the objective function of my subproblem

1 vote
Accepted

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

3 votes
Accepted

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

2 votes
Accepted

Grouping of a list of elements in fixed order to maximize the total return of all the groups

5 votes
Accepted

Replace the constraint using ==> by a linear formulation

3 votes
Accepted

How to evaluate the quality of a solution obtained using the price-and-branch method for an IP problem?

7 votes

Algorithm needed to find optimum area of 2-dimensional data set

3 votes

How to modify a model to be cyclic?

4 votes

How to model weekend constraints in a nurse rostering problem?

7 votes
Accepted

How to set up a constraint that represents a median?

1 vote
Accepted

Creating a decision variable that is the sum of other variables in PuLP

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