How to link AIMMS with an SQLite database (in Windows 10)
Say you have a wonderful AIMMS application, that needs to link a Database Table identifier (an AIMMS identifier) to one SQL data base of yours. Your amazing SQL data base…
Set, Subset, Index and Element Parameter in AIMMS
Do you know Set is a god of the desert, storms, disorder, violence and foreigners in ancient Egyptian? So it is totally possible that his disturbance power influenced mathematical world,…
Dealing with model is infeasible or unbounded error
Unfortunately, when modeling things hardly ever go as planned at the first try and more than once you end up with results that you did not expect. At first glance…
Development of a Small Rostering Application
Solutions from rostering applications affect the daily life of the people rostered. Therefore, the application developers and planners iteratively improve the rostering applications and the quality of the solutions, often…
Getting multiple solutions from the solver
Some of the solvers in AIMMS, including the CP Optimizer solver for Constraint Programming problems, support not only returning a single (optimal) solution, but also a pool of feasible solutions….
What is the element after the last?
Consider a stock balance S(t+1)=S(t)+P(t)-D(t). Via t+1 we refer to the next element in a set. Using such an expression as an argument of a variable, as in S(t+1), we…
Scheduling example: Narrowing time window for smaller jobs
The purpose of this example is to illustrate a few features of the AIMMS identifier types ACTIVITIES and RESOURCES. In the example used, we model the intuition that smaller jobs…
Tricks to Improve AIMMS Execution Time
The time spent by AIMMS applications can be divided into AIMMS execution time ( including evaluation parameters with definition, executing procedures, generate matrix for solvers, etc), the time spent by…