• DocumentCode
    3315692
  • Title

    Rough Sets on Four-Valued Fuzzy Approximation Space

  • Author

    Patrascu, Vasile

  • Author_Institution
    Tarom Co., Bucharest-Otopeni
  • fYear
    2007
  • fDate
    23-26 July 2007
  • Firstpage
    1
  • Lastpage
    5
  • Abstract
    The four-valued fuzzy sets (FVFS) represent a new extension of fuzzy sets based on the Lukasiewicz four-valued logic. These sets are described by four functions: strong membership, weak membership, weak non-membership and strong non-membership. In this paper the notion of four-valued fuzzy approximation space is introduced. Rough sets on such spaces are defined and some of their properties are studied.
  • Keywords
    approximation theory; fuzzy set theory; multivalued logic; rough set theory; Lukasiewicz four-valued logic; four-valued fuzzy set approximation space; rough set theory; Fuzzy logic; Fuzzy sets; Informatics; Natural language processing; Rough sets; Uncertainty;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Fuzzy Systems Conference, 2007. FUZZ-IEEE 2007. IEEE International
  • Conference_Location
    London
  • ISSN
    1098-7584
  • Print_ISBN
    1-4244-1209-9
  • Electronic_ISBN
    1098-7584
  • Type

    conf

  • DOI
    10.1109/FUZZY.2007.4295368
  • Filename
    4295368
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3315692