Glossary

decision maker, DM

A domain expert with adequate expertise related to an optimization problem able to provide preference information.

Pareto optimal solution

A feasible solution to a multiobjective optimization problem which corresponds to an objective vector that cannot be exchanged for any other objective vector resulting from some other feasible solution wihtout having to make a trade-off in at least one objective value.

Pareto front

The set of Pareto optimal solutions.

nadir (point)

The worst possible objective values of a Pareto front.

ideal (point)

The best possible objective values of a Pareto front.

reference point

Desirable aspiration levels for each objective function.