Results 11 to 20 of about 39,849 (266)
The Feature Description of Formal Context Based on the Relationships among Concept Lattices
Entropy, 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
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Horn representation of a concept lattice [PDF]
International Journal of General Systems, 2009 Concept lattices are the central notion of formal concept analysis. They are applied in many different areas such as data mining, knowledge representation or ontology engineering and are subject to ongoing research. In order to better understand the nature of concept lattices, it is useful to consider their links to other mathematical notions.
Kamel Ben-Khalifa, Susanne Motameny
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Study of Implication Representation Based on Decision Implication
Jisuanji kexue yu tansuo, 2021 Formal concept analysis can use concept lattice and (attribute) implication to visualize and represent knowledge. Decision implication is a special implication, and the study of decision implication is to establish and study one or more closed subsystems
WANG Yali, ZHAI Yanhui, ZHANG Shaoxia, JIA Nan, LI Deyu
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Using Fuzzy Concept Lattice for Intelligent Disease Diagnosis
IEEE Access, 2017 This paper proposes a novel intelligent disease diagnosis method based on fuzzy concept lattice. Symptoms and the corresponding extents (e.g., frequency, severity, and duration) of each disease can be extracted to form a fuzzy concept lattice.
Caifeng Zou, Huifang Deng
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Attribute Reduction Based on Property Pictorial Diagram
The Scientific World Journal, 2014 This paper mainly studies attribute reduction which keeps the lattice structure in formal contexts based on the property pictorial diagram. Firstly, the property pictorial diagram of a formal context is defined.
Qing Wan, Ling Wei
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Concept Lattice Method for Spatial Association Discovery in the Urban Service Industry
ISPRS International Journal of Geo-Information, 2020 A relative lag in research methods, technical means and research paradigms has restricted the rapid development of geography and urban computing. Hence, there is a certain gap between urban data and industry applications.
Weihua Liao, Zhiheng Zhang, Weiguo Jiang
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Electronic Notes in Theoretical Computer Science, 2009 AbstractFormal concept analysis and rough set theory provide two different methods for data analysis and knowledge processing. Given a context K, one can get the concept lattice L(K) in Wille's sense and the object-oriented rough concept lattice RO-L(K) (resp., attribute-oriented RA-L(K)).
Lingyun Yang, Luoshan Xu
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Distances Between Formal Concept Analysis Structures [PDF]
Transactions on Graph Data and KnowledgeIn 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
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Spatial Concept Query Based on Lattice-Tree
ISPRS International Journal of Geo-Information, 2022 As a basic method of spatial data operation, spatial keyword query can provide meaningful information to meet user demands by searching spatial textual datasets. How to accurately understand users’ intentions and efficiently retrieve results from spatial
Aopeng Xu +4 more
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The Method of Data Analysis in Intuitionistic Fuzzy Generalized Consistent Decision Formal Context
Entropy, 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
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