Results 11 to 20 of about 702,978 (335)

Geometric Lattice Structure of Covering-Based Rough Sets through Matroids [PDF]

open access: yesJournal of Applied Mathematics, 2012
Covering-based rough set theory is a useful tool to deal with inexact, uncertain, or vague knowledge in information systems. Geometric lattice has been widely used in diverse fields, especially search algorithm design, which plays an important role in ...
Aiping Huang, William Zhu
doaj   +5 more sources

Interval neutrosophic covering rough sets based on neighborhoods

open access: yesAIMS Mathematics, 2021
Covering rough set is a classical generalization of rough set. As covering rough set is a mathematical tool to deal with incomplete and incomplete data, it has been widely used in various fields. The aim of this paper is to extend the covering rough sets
Dongsheng Xu, Huaxiang Xian, Xiewen Lu
doaj   +1 more source

Cost-sensitive Multigranulation Approximation of Neighborhood Rough Fuzzy Sets [PDF]

open access: yesJisuanji kexue, 2023
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

Rough soft sets and rough soft groups [PDF]

open access: yesJournal of Hyperstructures, 2013
In this paper we discuss some basic properties of rough soft sets and hence we introduce the notion of rough soft group. Basic properties of rough soft group are presented and supported by some illustrative examples.
Jayanta Ghosh, T. K. Samanta
doaj   +1 more source

Soft pre-rough sets and its applications in decision making

open access: yesMathematical Biosciences and Engineering, 2020
Soft rough set model represents a different mathematical model to which many real-life data can be connected. In fact, this theory represents a link between soft set and rough set theories.
M. El Sayed   +2 more
doaj   +1 more source

New Topological Approaches to Generalized Soft Rough Approximations with Medical Applications

open access: yesJournal of Mathematics, 2021
There are many approaches to deal with vagueness and ambiguity including soft sets and rough sets. Feng et al. initiated the concept of possible hybridization of soft sets and rough sets.
Mostafa K. El-Bably   +2 more
doaj   +1 more source

New neighborhood based rough sets [PDF]

open access: yes, 2015
Neighborhood based rough sets are important generalizations of the classical rough sets of Pawlak, as neighborhood operators generalize equivalence classes.
I Couso   +11 more
core   +1 more source

Rough Neutrosophic Sets

open access: yesNeutrosophic Sets and Systems, 2013
Both neutrosophic sets theory and rough sets theory are emerging as powerful tool for managing uncertainty, indeterminate, incomplete and imprecise information. In this paper we develop an hybrid structure called rough neutrosophic sets and studied their properties.
Mamoni Dhar   +2 more
openaire   +3 more sources

Rough quotient in topological rough sets

open access: yesOpen Mathematics, 2019
In this paper, we introduce a rough quotient. Also, we present conditions ensuring that G/H are partitions of G. The rough projection map is also presented. We discuss first, second and third rough isomorphism theorems and other related results.
Alharbi Nof   +3 more
doaj   +1 more source

Label-based Approach for Dynamic Updating Approximations in Incomplete Fuzzy Probabilistic Rough Sets over Two Universes [PDF]

open access: yesJisuanji kexue, 2022
When the missing values are obtained in incomplete fuzzy probabilistic rough sets over two universes,the time efficiency of the traditional static algorithm for updating approximations in incomplete fuzzy probabilistic rough sets over two universes is ...
XUE Zhan-ao, HOU Hao-dong, SUN Bing-xin, YAO Shou-qian
doaj   +1 more source

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