Linguistic Modifiers with Unbalanced Term Sets in Multi-valued Logic

Nouha Chaoued 1, 2 Amel Borgi 1 Anne Laurent 2
2 FADO - Fuzziness, Alignments, Data & Ontologies
LIRMM - Laboratoire d'Informatique de Robotique et de Microélectronique de Montpellier
Abstract : Modeling human knowledge by machines should be as faithful as possible to reality. Therefore, it is imperative to take account of inaccuracies and uncertainties in this knowledge. This problem has been dealt with through different approaches. The most two common approaches are fuzzy logic and multi-valued logic. These two logics propose a linguistic term modeling. Generally, problems modeling qualitative aspect use linguistic variables assessed in linguistic terms that are uniformly distributed on the scale. However, in many cases, linguistic information needs to be defined by unbalanced term sets whose terms are not uniformly and/or not symmetrically distributed. In the literature, many researchers deal with these term sets in the context of fuzzy logic. Thereby, in our work, we introduce a new approach to represent and treat such term sets in the context of multi-valued logic. First, we propose an algorithm that allows representing terms within an unbalanced set. Then, we describe a second algorithm that permits the use of linguistic modifiers within unbalanced multi-sets.
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Nouha Chaoued, Amel Borgi, Anne Laurent. Linguistic Modifiers with Unbalanced Term Sets in Multi-valued Logic. 7th International Conference on Knowledge Engineering and Ontology Development (KEOD), Nov 2015, Lisbon, Portugal. pp.50-60, ⟨10.5220/0005598400500060⟩. ⟨lirmm-01381086⟩

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