Results 1 to 10 of about 6,919 (266)

The Feature Description of Formal Context Based on the Relationships among Concept Lattices [PDF]

open access: yesEntropy, 2021
Three-way concept analysis (3WCA) is extended research of formal concept analysis (FCA) by combining three-way decision. The three-way object oriented concept lattice (OEOL) is one of the important data structures which integrates rough set, concept ...
Ting Qian, Yongwei Yang, Xiaoli He
doaj   +2 more sources

Using Covering Reduction to Identify Reducts for Object-Oriented Concept Lattices

open access: yesAxioms, 2022
An object-oriented concept lattice, as an important generalization of classic concept lattices, is a bridge between formal concept analysis and rough set theory. This paper presents an application of covering reduction in formal concept analysis.
Guilong Liu
doaj   +1 more source

Characterizing One-Sided Formal Concept Analysis by Multi-Adjoint Concept Lattices

open access: yesMathematics, 2022
Managing and extracting information from databases is one of the main goals in several fields, as in Formal Concept Analysis (FCA). One-sided concept lattices and multi-adjoint concept lattices are two frameworks in FCA that have been developed in ...
María José Benítez-Caballero   +2 more
doaj   +1 more source

Regular Partial Residuated Lattices and Their Filters

open access: yesMathematics, 2022
To express wider uncertainty, Běhounek and Daňková studied fuzzy partial logic and partial function. At the same time, Borzooei generalized t-norms and put forward the concept of partial t-norms when studying lattice valued quantum effect algebras. Based
Nan Sheng, Xiaohong Zhang
doaj   +1 more source

On Goldie absolute direct summands in modular lattices [PDF]

open access: yesMathematica Bohemica, 2023
Absolute direct summand in lattices is defined and some of its properties in modular lattices are studied. It is shown that in a certain class of modular lattices, the direct sum of two elements has absolute direct summand if and only if the elements are
Rupal Shroff
doaj   +1 more source

Muon Collider lattice concepts [PDF]

open access: yesJournal of Instrumentation, 2018
A Muon Collider poses a number of challenging problems in the lattice design - low beta-star, small circumference, large physical and dynamic aperture - which must be solved in order to realize the unique opportunities it offers for the high-energy physics.
Alexahin, Y.   +2 more
openaire   +2 more sources

A Fast Algorithm for Updating Negative Concept Lattices with Increasing the Granularity Sizes of Attributes

open access: yesMathematics, 2023
In this paper, firstly, we studied the relationship between negative concept lattices with increasing the granularity sizes of the attributes. Aiming to do this, negative concepts and covering relations were both classified into three types, and the ...
Junping Xie, Liuhai Zhang, Jing Yang
doaj   +1 more source

Dual Three-way Concept Lattice Based on Composition of Concepts and Its Concept Reduction [PDF]

open access: yesJisuanji kexue, 2023
Three-way concept lattice not only represents the information jointly owned,but also represents the information that is not owned by each other by combining positive operators and negative operators.It is an extension of the classical concept lattice ...
LIU Jin, MI Jusheng, LI Zhongling, LI Meizheng
doaj   +1 more source

Relationship Between Attribute (Object) Oriented Multi-Granularity Concept Lattices

open access: yesJisuanji kexue yu tansuo, 2020
According to the inspiration of research on multi-granularity marker information system in rough set, for the formal background of multi-granularity marker, concept lattices made by different granularity markers have connections.
YANG Han, QIN Keyun
doaj   +1 more source

Attribute reduction based on maximal rules in decision formal context [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2014
One of the key issues in the theory of concept lattices is to extract the useful rules from the decision formal context. The maximal rules implicate the others, thus people are interested in them.
Leijun Li, Jusheng Mi, Bin Xie
doaj   +1 more source

Home - About - Disclaimer - Privacy