Fuzzy relational compositions; Fuzzy relational products; Bandler-Kohout products; Grouping features; Excluding features; Generalized quantifiers;Classification

Fuzzy relational compositions have been extended and studied from distinct perspectives, and their use on the classification problem has been already demonstrated too. One of the recent approaches foreshadowed the positive influence of the so-called grouping features. When this improvement is being applied, the universe of features is partitionedinto a number of groups of features and then the relevant composition is applied. The use of the concept was demonstrated on the real classificationof Odonata (dragonflies). This paper shows that the Bandler-Kohout subproduct may appropriately serve as the chosen compositions in order to obtain an effective tool. The concepts of excluding features and generalized quantifiers will be employed in the constructed method as well. Some interesting properties will be introduced and a real example of the influence of the new concept will be provided.