Ignacio Huitzil, Fernando Bobillo, Juan Gomez-Romero, Umberto Straccia.
Fudge: Fuzzy Ontology Building with Consensuated Fuzzy Datatypes.

In Fuzzy Sets and Systems, 401, pages 91-112, Elsevier, 2020.


Abstract:

An important problem in Fuzzy OWL~2 ontology building is the definition of fuzzy membership functions for real-valued fuzzy sets (so-called fuzzy datatypes in Fuzzy OWL~2 terminology). In this paper, we present a tool, called Fudge, whose aim is to support the consensual creation of fuzzy datatypes by aggregating the specifications given by a group of experts. Fudge is open-source and currently supports several linguistic aggregation strategies, including the convex combination, linguistic OWA, weighted mean and fuzzy OWA, and easily allows to build others in. We also propose and have implemented two novel linguistic aggregation operators, based on a right recursive form of the convex combination and of the linguistic OWA.