Results 31 to 40 of about 50,721 (156)

Two kinds of average approximation accuracy

open access: yesCAAI Transactions on Intelligence Technology
Rough set theory places great importance on approximation accuracy, which is used to gauge how well a rough set model describes a target concept. However, traditional approximation accuracy has limitations since it varies with changes in the target ...
Qingzhao Kong   +3 more
doaj   +1 more source

Multigranulation rough set: A multiset based strategy

open access: yesInternational Journal of Computational Intelligence Systems, 2017
A simple multigranulation rough set approach is to approximate the target through a family of binary relations. Optimistic and pessimistic multigranulation rough sets are two typical examples of such approach.
Xibei Yang   +5 more
doaj   +1 more source

Covering-Based Rough Single Valued Neutrosophic Sets [PDF]

open access: yesNeutrosophic Sets and Systems, 2017
Rough sets theory is a powerful tool to deal with uncertainty and incompleteness of knowledge in information systems. Wang et al. proposed single valued neutrosophic sets as an extension of intuitionistic fuzzy sets to deal with real-world problems.
Yingcang Ma, Wanying Zhou, Qing Wan
doaj   +1 more source

Matrix-Based Approaches for Updating Approximations in Multigranulation Rough Set While Adding and Deleting Attributes

open access: yesInternational Journal of Computational Intelligence Systems
With advanced technology in medicine and biology, data sets containing information could be huge and complex that sometimes are difficult to handle. Dynamic computing is an efficient approach to solve some problems. Since multigranulation rough sets were
Peiqiu Yu   +3 more
doaj   +1 more source

Single Valued Neutrosophic Soft Approach to Rough Sets, Theory and Application [PDF]

open access: yesNeutrosophic Sets and Systems, 2018
This paper aims to introduce a single valued neutrosophic soft approach to rough sets based on neutrosophic right minimal structure. Some of its properties are deduced and proved. A comparison between traditional rough model and suggested model, by using
Emad Marei
doaj   +1 more source

Equivalent Characterizations of Some Graph Problems by Covering-Based Rough Sets

open access: yesJournal of Applied Mathematics, 2013
Covering is a widely used form of data structures. Covering-based rough set theory provides a systematic approach to this data. In this paper, graphs are connected with covering-based rough sets.
Shiping Wang   +3 more
doaj   +1 more source

Granule Vectors and Granular Convolutional Classifiers

open access: yesIEEE Access, 2020
Convolutional operations can extract effective features and have been widely used in the field of deep learning. For the deficiency of convolution mainly dealing with numerical data, we propose a novel convolutional operator on granules with a set form ...
Yumin Chen   +3 more
doaj   +1 more source

Multi-Attribute Decision-Making Method Based on Neutrosophic Soft Rough Information

open access: yesAxioms, 2018
Soft sets (SSs), neutrosophic sets (NSs), and rough sets (RSs) are different mathematical models for handling uncertainties, but they are mutually related.
Muhammad Akram   +2 more
doaj   +1 more source

The Parameter Reduction of Fuzzy Soft Sets Based on Soft Fuzzy Rough Sets

open access: yesAdvances in Fuzzy Systems, 2013
Fuzzy set theory, rough set theory, and soft set theory are three effective mathematical tools for dealing with uncertainties and have many wide applications both in theory and practise. Meng et al.
Zhiming Zhang
doaj   +1 more source

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