Results 21 to 30 of about 5,488,017 (310)

Distances Between Formal Concept Analysis Structures [PDF]

open access: yesTransactions on Graph Data and Knowledge
In this paper, we study the notion of distance between the most important structures of formal concept analysis: formal contexts, concept lattices, and implication bases.
Bazin, Alexandre, Kahn, Giacomo
doaj   +1 more source

The Method of Data Analysis in Intuitionistic Fuzzy Generalized Consistent Decision Formal Context

open access: yesEntropy, 2019
Concept lattice has been successfully applied to various fields as an effective tool for data analysis and knowledge discovery, with attribute reduction being the key problem.
Binbin Sang   +3 more
doaj   +1 more source

Research of ontology construction of coal mining face based on formal concept analysis

open access: yesGong-kuang zidonghua, 2017
In view of problem of time-consuming and subjective dependence of traditional ontology construction method, an ontology construction method of coal mining face based on formal concept analysis was proposed.
LIU Ting   +4 more
doaj   +1 more source

Hesitant Fuzzy Concept Lattice and its Application

open access: yesIEEE Access, 2020
The hesitant fuzzy set (HFS) can reflect the hesitation and uncertainty of decision-makers for the reason that it uses some possible values instead of a certain value. Considering that there is still no research on concept lattice or fuzzy formal concept
Xue Yang, Zeshui Xu
doaj   +1 more source

Interesting Concept Mining With Concept Lattice Convolutional Networks

open access: yesIEEE Access
The extraction of meaningful conceptual structures is often a critical task in many scientific and engineering disciplines, as it enables a comprehensive analysis of complex data in terms of both context and content.
Mohamed Hamza Ibrahim   +2 more
doaj   +1 more source

On inference rules in decision formal contexts [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2015
Rule acquisition is one of the main purposes in the analysis of decision formal contexts. In general, the number of implications in a decision formal context is an exponential increase to the scale of the database.
Jinhai Li   +3 more
doaj   +1 more source

Gradation of Fuzzy Preconcept Lattices

open access: yesAxioms, 2021
Noticing certain limitations of concept lattices in the fuzzy context, especially in view of their practical applications, in this paper, we propose a more general approach based on what we call graded fuzzy preconcept lattices.
Alexander Šostak   +2 more
doaj   +1 more source

Identification and Prediction of Interdisciplinary Research Topics: A Study Based on the Concept Lattice Theory

open access: yesJournal of Data and Information Science, 2019
Formal concept analysis (FCA) and concept lattice theory (CLT) are introduced for constructing a network of IDR topics and for evaluating their effectiveness for knowledge structure exploration.
Xu Haiyun   +3 more
doaj   +1 more source

Structural biology of ferritin nanocages

open access: yesFEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

Role Minimization Optimization Algorithm Based on Concept Lattice Factor

open access: yesMathematics, 2023
Role-based access control (RBAC) is a widely adopted security model that provides a flexible and scalable approach for managing permissions in various domains.
Tao Wang, Qiang Wu
doaj   +1 more source

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