On three types of covering-based rough sets
Web31 de mar. de 2024 · TL;DR: Three new types of fuzzy covering-based rough set models are proposed by introducing a new notion of a fuzzy complementary -neighborhood by introducing some new definitions of fuzzy -covering approximation spaces. Abstract: Fuzzy coverings are a natural extension of the coverings by replacing crisp sets with fuzzy …
On three types of covering-based rough sets
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Web28 de ago. de 2008 · Abstract: Rough sets, a tool for data mining, deal with the vagueness and granularity in information systems. For further studies on privacy protection, we study a new type of covering-based rough sets. After presenting their basic properties, this paper explores the interdependency between the lower and upper approximation operations, … Web15 de out. de 2012 · Three types of covering-based rough set models already exist [3], [4], [34], [60]. Zakowski extended Pawlak’s rough set theory by using a covering of the domain, rather than a partition [46]. The new model is often referred to as the first type of covering-based rough sets.
Web1 de set. de 2007 · In this paper, based on fuzzy neighborhoods, we propose two types of covering-based variable precision fuzzy rough sets (CVPFRSs) via fuzzy logical … Web3 de mar. de 2024 · In this paper, we mainly establish three types of L-fuzzy β-covering-based rough set models and study the axiomatic characterizations, matrix …
Web29 de dez. de 2012 · Zhu W, Wang FY (2006) A new type of covering rough sets. In IEEE IS, pp 444–449, 4–6 Sept 2006. Zhu W, Wang FY (2006) Relationships among three types of covering rough sets, In IEEE GrC, pp 43–48, May 2006. Zhu W, Wang SP (2011) Matroidal approaches to generalized rough sets based on relations. Int J Mach Learn … Web1 de out. de 2012 · We propose a framework for the study of covering based rough set approximations. Three equivalent formulations of the classical rough sets are examined …
WebCovering-based rough sets are natural extensions of the classical rough sets by relaxing the partitions to coverings and have been applied for many ... Zhu, W., Wang, F.: On …
Web25 de jun. de 2007 · Rough set theory is a useful tool for data mining. It is based on equivalence relations and has been extended to covering-based generalized rough … greencastle in crime rateWeb30 de out. de 2024 · In this paper, three new types of fuzzy covering-based rough set models are proposed. First, the membership-degree-based fuzzy covering rough set is … flowing poetryWeb1 de out. de 2012 · We propose a framework for the study of covering based rough set approximations. Three equivalent formulations of the classical rough sets are examined by using equivalence relations, partitions, and σ -algebras, respectively. They suggest the element based, the granule based and the subsystem based definitions of … flowing pointWebAbstract. In this paper, six types of optimistic multi-covering rough set models and six types of pessimistic multi-covering rough set models are proposed in multi-covering approximation space. From three different points of views, relationships among multi-covering rough set models are deeply investigated. greencastle in current timeWeb3 de mar. de 2024 · On three types of L-fuzzy β-covering-based rough sets. Author links open overlay panel Wei Li a, Bin Yang a, Junsheng Qiao b. Show more. ... In this paper, we mainly establish three types of L-fuzzy β-covering-based rough set models and study the axiomatic characterizations, matrix representations and interdependency of their rough ... flowing plus size maternity dressWeb13 de mai. de 2024 · arXivLabs: experimental projects with community collaborators. arXivLabs is a framework that allows collaborators to develop and share new arXiv … flowing plus size dressesWeb7 de jul. de 2016 · Definition 3. Let ( U , C) be a covering approximation space. Then, by combining lower approximation operators of types 6, 7, 8, and 10 with upper approximation operators of types 1, 4, and 5, we can define twelve different types of covering based rough set as follows: C ¯ 61 ( X) = ∪ { C F r i e n d s ( x) x ∈ X - C 6. ̲. flowing pool