Results 171 to 180 of about 93,693 (238)

Measuring change in fuzzy concept lattices

2012 12th UK Workshop on Computational Intelligence (UKCI), 2012
The quantity of unstructured and semi-structured data available is growing rapidly. Adding structure to such data (by means of ontologies and tag-based taxonomic classifications) is potentially a very productive approach, which can lead to additional knowledge (e.g. by monitoring association and other relations between classes) as well as enabling more
T P Martin, N H Abd Rahim, A Majidian
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Rule extraction based on linguistic-valued intuitionistic fuzzy layered concept lattice

International Journal of Approximate Reasoning, 2021
As one of the research tools for data processing and knowledge discovery, concept lattice can effectively extract information. In daily life, due to the ambiguity and uncertainty of the decision environment, different experts may provide different ...
L. Zou, Hongmei Lin, Xiaoying Song, Kaihua Feng, Xin Liu   +4 more
semanticscholar   +1 more source

An Efficient Algorithm for Batch Attribute Insertion in Fuzzy Concept Lattice Construction: Overcoming Extent Loss and Optimizing Path Matching in Dynamic Fuzzy Concept Lattices

2024 4th International Conference on Electronic Information Engineering and Computer Science (EIECS)
This paper proposes an algorithm for batch insertion of new attributes into concept lattices. By constructing parent nodes and leveraging shared intents between nodes, we integrate new nodes without losing extent features, enhancing efficiency over ...
Wei Gao, Junjun Feng, Li Zou, Jin Guo
semanticscholar   +1 more source

Knowledge Reduction in Crisply Generated Fuzzy Concept Lattices

Fundamenta Informaticae, 2015
Knowledge reduction is a basic issue in knowledge representation and data mining. Although various methods have been developed to reduce the size of classical formal contexts, the reduction of formal fuzzy contexts based on fuzzy lattices remains a difficult problem owing to its complicated derivation operators.
Li, Mei-Zheng, Wang, Guo-Yin
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On efficient factorization of standard fuzzy concept lattices and attribute-oriented fuzzy concept lattices

Fuzzy Sets and Systems, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Fuzzy concept lattices induced by doubly distance spaces

Fuzzy Sets and Systems, 2023
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Young-Hee Kim, Ju-Mok Oh
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Reduction of fuzzy-crisp concept lattice based on order-class matrix

Journal of Intelligent & Fuzzy Systems, 2020
Knowledge reduction is one of critical problems in data mining and information processing. It can simplify the structure of the lattice during the construction of fuzzy-crisp concept lattice.
Yidong Lin, Jinjin Li, Shujiao Liao, Jia Zhang, Jinghua Liu   +4 more
semanticscholar   +1 more source

Fuzzy concept lattice reduction using Shannon entropy and Huffman coding

J. Appl. Non Class. Logics, 2015
In the last decade, formal concept analysis (FCA) in a fuzzy setting has received more attention for knowledge processing tasks in various fields. The hierarchical order visualisation of generated formal concepts is a major concern for the practical ...
Prem Kumar Singh, A. Gani
semanticscholar   +1 more source

Fuzzy Concept Lattices with Incomplete Knowledge

2012
We study the problem of incomplete data in Formal Concept Analysis in fuzzy setting, namely the problem of constructing a concept lattice of incomplete data. We develop a simple general framework for dealing with unknown values in fuzzy logic, define incomplete fuzzy formal contexts, and present a method of constructing concept lattices of such ...
Michal Krupka, Jan Laštovička
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On equivalence of fuzzy concept lattice

2011 Eighth International Conference on Fuzzy Systems and Knowledge Discovery (FSKD), 2011
The notion of equivalence in fuzzy concepts based on the pinned-flag of fuzzy set is introduced, and then the equivalence class of fuzzy concept lattice is defined. Some propositions of them are proposed. Furthermore, the refinement in fuzzy concepts is defined according to the covering of a set, and the relation between the refinement and the ...
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