Results 1 to 10 of about 772,564 (263)
The Feature Description of Formal Context Based on the Relationships among Concept Lattices [PDF]
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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Non-redundant implicational base of formal context with constraints using SAT [PDF]
PeerJ Computer ScienceAn implicational base is knowledge extracted from a formal context. The implicational base of a formal context consists of attribute implications which are sound, complete, and non-redundant regarding to the formal context.
Taufiq Hidayat +2 more
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Formal Contexts, Formal Concept Analysis, and Galois Connections [PDF]
Electronic Proceedings in Theoretical Computer Science, 2013 Formal concept analysis (FCA) is built on a special type of Galois connections called polarities. We present new results in formal concept analysis and in Galois connections by presenting new Galois connection results and then applying these to formal ...
Jeffrey T. Denniston +2 more
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Null Models for Formal Contexts [PDF]
Information, 2020 Null model generation for formal contexts is an important task in the realm of formal concept analysis. These random models are in particular useful for, but not limited to, comparing the performance of algorithms.
Maximilian Felde +2 more
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Skill Reduction and Assessment in Formal Context [PDF]
Jisuanji kexue yu tansuo, 2022 Knowledge space theory (KST) provides an effective way to construct knowledge evaluation system. Formal concept analysis (FCA) is a powerful tool for knowledge discovery.
ZHOU Yinfeng, LI Jinjin
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FcaBedrock, a Formal Context Creator [PDF]
International Journal of Space-Based and Situated Computing, 2010 FcaBedrock employs user-guided automation to convert\ud c.s.v. data sets into Burmeister .cxt and FIMI .dat context files for FCA.
Andrews, S., Orphanides, C.
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Rule Extraction Based on OE-cp-Approximation Concepts in Incomplete Formal Contexts [PDF]
Jisuanji kexue, 2023 In many practical application,data loss can be caused by data measurement errors,data understanding biases and transmission distortions.This “data incomplete” formal context is called incomplete formal context.In order to enrich the knowledge discovery ...
NIU Lihui, MI Jusheng, BAI Yuzhang
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On inference rules in decision formal contexts [PDF]
International 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
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On formal concepts of random formal contexts [PDF]
Information Sciences, 2021 In formal concept analysis, it is well-known that the number of formal concepts can be exponential in the worst case. To analyze the average case, we introduce a probabilistic model for random formal contexts and prove that the average number of formal concepts has a superpolynomial asymptotic lower bound.
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Attribute Reduction in Soft Contexts Based on Soft Sets and Its Application to Formal Contexts
Mathematics, 2020 We introduce the notion of the reduct of soft contexts, which is a special notion of a consistent set for soft contexts. Then, we study its properties and show that this notion is well explained by the two classes, 1 0 and 2 0 , of ...
Won Keun Min
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