Proaftn is a fuzzy classification method that belongs to the class of supervised learning algorithms.
The acronym Proaftn stands for: (PROcédure d'Affectation Floue pour la problématique du Tri Nominal), which means in English: Fuzzy Assignment Procedure for Nominal Sorting.
Indirect technique: It consists in fitting the parameters without the expert intervention as used in machine learning approaches.
[4][5] In multicriteria classification problem, the indirect technique is known as preference disaggregation analysis.
Furthermore, several heuristics and metaheuristics were used to learn the multicriteria classification method Proaftn.