Gleb Belov (7 notebooks)#

Aircrew trainee scheduling with seniority constraints#

Notebooks > Aircrew trainee scheduling with seniority constraints
tip8_aircrew_trainees_seniority.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: Aircrew trainee scheduling with simpler seniority modeling
Tags: trainee-scheduling, aircrew-scheduling, employee-scheduling, seniority-constraints, seniority-ranking, preferential-bidding-system, multiple-objectives, lexicographic-optimization, amplpy
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>

CP-style scheduling model with the numberof operator, solved by a MIP solver#

Notebooks > CP-style scheduling model with the *numberof* operator, solved by a MIP solver
sched_numberof.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: Scheduling model with the Constraint Programming numberof operator, solved with a MIP solver. New MIP solver drivers based on the [MP library](https://amplmp.readthedocs.io/) enable CP-style modeling.
Tags: ampl-only, constraint-programming
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>

Hydrothermal Scheduling Problem with Conic Programming#

Notebooks > Hydrothermal Scheduling Problem with Conic Programming
hydrothermal.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: Hydrothermal Scheduling Problem using Second-Order Cones
Tags: amplpy, conic, second-order-cone, quadratic-cone, nonlinear-programming, scheduling, engineering, power-generation, geothermal-energy, hydropower
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>

Logistic Regression with amplpy#

Notebooks > Logistic Regression with amplpy
logistic_regression.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: Logistic regression with amplpy using exponential cones
Tags: highlights, amplpy, regression, sigmoid, softplus, log-sum-exp, classifier, regularization, machine-learning, conic, exponential-cone, second-order-cone, quadratic-cone, formulation-comparison
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>, Filipe Brandão (16 notebooks) <fdabrandao@gmail.com>

N-Queens#

Notebooks > N-Queens
nqueens.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: How can N queens be placed on an NxN chessboard so that no two of them attack each other?
Tags: amplpy, constraint-programming, highlights
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>

Robust Linear Programming with Ellipsoidal Uncertainty#

Notebooks > Robust Linear Programming with Ellipsoidal Uncertainty
tip6_robust_linear_programming.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: AMPL Modeling Tips #6: Robust Linear Programming
Tags: highlights, modeling-tips, conic
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>

Solution check: discontinuous objective function#

Notebooks > Solution check: discontinuous objective function
sol-check.ipynb Open In Colab Kaggle Gradient Open In SageMaker Studio Lab
Description: Pathological examples to illustrate MP solution checker and settings
Tags: mp-library, solution-check, non-continuous-objective, strict-comparison
Author: Gleb Belov (7 notebooks) <gleb@ampl.com>