Rough picture fuzzy set and picture fuzzy topologies

Nguyễn Xuân Thảo, Nguyễn Văn Định


Approximation of a picture fuzzy set on a crisp approximation space gives a rough picture fuzzy set. In this paper, the concept of a rough picture set is introduced, besides, we also investigate some topological structures of a rough picture fuzzy set are investigated, such are lower and upper rough picture fuzzy approximation operators.


Rough set, picture fuzzy set, rough picture fuzzy set, approximation operators, picture fuzzy topological space

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Journal of Computer Science and Cybernetics ISSN: 1813-9663

Published by Vietnam Academy of Science and Technology