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Axiomatic systems for rough sets and fuzzy rough sets
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Guilong Liu
exaly +4 more sources
I will analyze Pawlak’s rough sets and extend the usual setting of characterization via an equivalence relation to any arbitrary relation, or a full relation. I extract the specification of rough sets by two operators: probable operator and sure operator.
Ray-Ming Chen
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Rough set theory gives approximation models of complex knowledge structure. Agents are not present in the definition of the rough sets. Now we will show that a set of conflicting agents or active set can be used to model inconsistent decision in rough ...
Germano Resconi, Chris Hinde
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Soft Covering Based Rough Sets and Their Application [PDF]
Soft rough sets which are a hybrid model combining rough sets with soft sets are defined by using soft rough approximation operators. Soft rough sets can be seen as a generalized rough set model based on soft sets.
Şaziye Yüksel +2 more
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An Attribute Reduction Method Using Neighborhood Entropy Measures in Neighborhood Rough Sets [PDF]
Attribute reduction as an important preprocessing step for data mining, and has become a hot research topic in rough set theory. Neighborhood rough set theory can overcome the shortcoming that classical rough set theory may lose some useful information ...
Lin Sun +3 more
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A Neighborhood Rough Sets-Based Attribute Reduction Method Using Lebesgue and Entropy Measures [PDF]
For continuous numerical data sets, neighborhood rough sets-based attribute reduction is an important step for improving classification performance. However, most of the traditional reduction algorithms can only handle finite sets, and yield low accuracy
Lin Sun +3 more
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Some operations on rough bipolar interval neutrosophic sets [PDF]
In this study we introduce the concept of rough bipolar interval neutrosophic sets which is a combination of rough sets and bipolar interval neutrosophi sets. Also, we define union, complement, intersection and some interesting properties of this set.
V.S. Subha, P. Dhanalakshmi
doaj +1 more source
Approximations of interval neutrosophic hyperideals in semi-hyper-rings [PDF]
This paper deals with the combination of rough sets and interval neutrosophic sets. We introduce the interval neutrosophic hyper-ideals in semi-hyper-rings. Also we study the rough interval neutrosophic hyper-ideals in semi-hyper-rings.
P. Dhanalakshmi
doaj +1 more source
Cost-sensitive Multigranulation Approximation of Neighborhood Rough Fuzzy Sets [PDF]
Multigranulation neighborhood rough sets are a new data processing mode in the theory of neighborhood rough sets,in which the target concept can be characterized by upper/lower approximate boundaries of optimistic and pessimistic,respectively ...
YANG Jie, KUANG Juncheng, WANG Guoyin, LIU Qun
doaj +1 more source
Reasoning with Rough Sets and Paraconsistent Rough Sets.
This thesis presents an approach to knowledge representation combining rough sets and para-consistent logic programming. The rough sets framework proposes a method to handle a specific type of uncertainty originating from the fact that an agent may perceive different objects of the universe as being similar, although they may have di®erent properties ...
Vitória, Aida
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