Results 21 to 30 of about 9,774 (301)

The concept lattice functors

open access: yesInternational Journal of Approximate Reasoning, 2013
This paper is concerned with the relationship between contexts, closure spaces, and complete lattices. It is shown that, for a unital quantale L, both formal concept lattices and property oriented concept lattices are functorial from the category L-Ctx of L-contexts and infomorphisms to the category L-Sup of complete L-lattices and suprema-preserving ...
Lili Shen, Dexue Zhang
openaire   +1 more source

On Bonds for Generalized One-Sided Concept Lattices

open access: yesMathematics, 2021
The generalized one-sided concept lattices represent a generalization of the classical FCA method convenient for a hierarchical analysis of object-attribute models with different types of attributes.
Jozef Pócs, Jana Pócsová
doaj   +1 more source

Some characterizations of surjective operators on banach lattices [PDF]

open access: yesJournal of Hyperstructures, 2018
The concepts of compact and weakly compact operators on Banach spaces are considered and investigated in several papers. In this paper, taking idea from this notations, we consider the concept surjective compact and weakly compact operators on Banach ...
Akbar Bahramnezhad, Kazem Haghnejad Azar
doaj   +1 more source

Towards a generalisation of formal concept analysis for data mining purposes [PDF]

open access: yes, 2006
In this paper we justify the need for a generalisation of Formal Concept Analysis for the purpose of data mining and begin the synthesis of such theory.
Valverde Albacete, Francisco José   +5 more
core   +1 more source

A Combination Algorithm of Multiple Lattice-Valued Concept Lattices [PDF]

open access: yesInternational Journal of Computational Intelligence Systems, 2013
With the rapid development of network technology, especially in the internet area, distributed computation and parallel processing of data are urgently needed. This paper studies the combination operation of the lattice-valued concept lattices to realize
Li Yang, Yuhui Wang, Yang Xu
doaj   +1 more source

Exploring Structural Characteristics of Lattices in Real World

open access: yesComplexity, 2020
There are two important models for data analysis and knowledge system: data cube lattices and concept lattices. They both essentially have lattice structures, which are actually irregular in our real world.
Yu Chen   +5 more
doaj   +1 more source

Stream Convolution for Attribute Reduction of Concept Lattices

open access: yesMathematics, 2023
Attribute reduction is a crucial research area within concept lattices. However, the existing works are mostly limited to either increment or decrement algorithms, rather than considering both.
Jianfeng Xu   +4 more
doaj   +1 more source

Approach of Semantic Graph Summarization Based on Ontology Partition [PDF]

open access: yesJisuanji gongcheng, 2021
Semantic graph summarization is to extract key information from semantic graphs, and generate a summarized model of the original data set to solve problems in understanding, querying, and using large-scale semantic graphs.In order to improve the ...
WANG Yi, WANG Ying
doaj   +1 more source

Long-Term Categorization Capability Assessment of Semantically Reduced Concept Lattices

open access: yesApplied Sciences
The findability and usability of open data have never been more important due to the volume of available data. Therefore, methods have been developed to improve the dataset metadata quality, enhancing its findability and usability. One effective approach
Milena Frtunić Gligorijević   +3 more
doaj   +1 more source

Neutrosophic Lattices [PDF]

open access: yesNeutrosophic Sets and Systems, 2014
In this paper authors for the first time define a new notion called neutrosophic lattices. We define few properties related with them. Three types of neutrosophic lattices are defined and the special properties about these new class of lattices are ...
Vasantha Kandasamy   +1 more
doaj  

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