Fuzzy Covering based Rough Sets Revisited

• DOI: 10.2991/ifsa-eusflat-15.2015.93
• Publication Date: 2015-06-22T15:29:20Z
• Authors: Lynn D’eer; Chris Cornelis; Daniel Sánchez
• Keywords: Representation

In this paper we review four fuzzy extensions of the socalled tight pair covering based rough set approximation operators.Furthermore, propose two new pair: for first model, apply technique representation by levels to define operators, while second model is an intuitive extension crisp operators.For six models, study which theoretical properties they satisfy.Moreover, discuss interrelationships between models.