INTERNATIONAL JOURNAL OF APPROXIMATE REASONING, vol.128, pp.20-31, 2021 (SCI-Expanded)
Article / Article
INTERNATIONAL JOURNAL OF APPROXIMATE REASONING
Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Compendex, INSPEC, Linguistics & Language Behavior Abstracts, zbMATH, DIALNET
Fuzzy set, Rough set, Approximation space, Fuzzy approximation space, Vague environment, Fuzzy equality, FUZZY-SETS, PARTITIONS, EQUALITY, RESPECT, SPACES
Akdeniz University Affiliated:
In this paper, we introduce observable L-fuzzy subsets of an L-fuzzy set in a locally vague environment, and give their axiomatization. In addition to this, lower and upper observability operators that enable us to approximate non-observable L-fuzzy sets within some observable bounds are studied. In particular, we deal with their topological characterization, and expose that they can be identified with the stratified L-interior and the stratified L-closure operators of a stratified Alexandroff L-topology on an L-fuzzy set. (C) 2020 Elsevier Inc. All rights reserved.