Results 11 to 20 of about 449,079 (306)

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, Austin Melton, Stephen E. Rodabaugh   +2 more
doaj   +5 more sources

Monotone concepts for formal concept analysis

Discrete Applied Mathematics, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jitender S Deogun, Jamil Saquer
exaly   +3 more sources

Matching biomedical ontologies based on formal concept analysis [PDF]

Journal of Biomedical Semantics, 2018
Background The goal of ontology matching is to identify correspondences between entities from different yet overlapping ontologies so as to facilitate semantic integration, reuse and interoperability.
Mengyi Zhao, Songmao Zhang, Weizhuo Li, Guowei Chen   +3 more
doaj   +2 more sources

Deep First Formal Concept Search [PDF]

The Scientific World Journal, 2014
The calculation of formal concepts is a very important part in the theory of formal concept analysis (FCA); however, within the framework of FCA, computing all formal concepts is the main challenge because of its exponential complexity and difficulty in ...
Tao Zhang, Hui Li, Wenxue Hong, Xiamei Yuan, Xinyu Wei   +4 more
doaj   +2 more sources

On the Calculation of Formal Concept Stability [PDF]

Journal of Applied Mathematics, 2014
The idea of stability has been used in many applications. However, computing stability is still a challenge and the best algorithms known so far have algorithmic complexity quadratic to the size of the lattice.
Hui-lai Zhi
doaj   +3 more sources

Distances Between Formal Concept Analysis Structures [PDF]

Transactions 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   +2 more sources

FUZZY FORMAL CONCEPT ANALYSIS UNTUK KEMIRIPAN DOKUMEN [PDF]

Simetris: Jurnal Teknik Mesin, Elektro dan Ilmu Komputer, 2013
ABSTRAK Fuzzy logic dapat dimasukkan ke dalam ontologi untuk representasi ketidakpastian informasi yang ditemukan di banyak aplikasi domain karena kurangnya jelas batas-batas antara konsep domain. Fuzzy ontologi dihasilkan dari konsep hirarki yang telah
Endang Supriyati
doaj   +2 more sources

Building a knowledge base for colorectal cancer patient care using formal concept analysis. [PDF]

BMC Med Inform Decis Mak, 2022
BACKGROUND: Colorectal cancer (CRC) is a heterogeneous disease with different responses to targeted therapies due to various factors, and the treatment effect differs significantly between individuals. Personalize medical treatment (PMT) is a method that
Xiang J, Xu H, Pokharel S, Li J, Xue F, Zhang P, Zhang P.   +6 more
europepmc   +2 more sources

Same Effect Relation and Concept Reduction in Formal Concept Analysis [PDF]

Jisuanji kexue, 2023
Since 2018,scholars have proposed and studied a new topic of “concept reduction” in formal concept analysis.Including unnecessary concepts,core concepts,relatively necessary concepts,and the identification of three types of concepts,and research on ...
MA Wensheng, HOU Xilin
doaj   +1 more source

Research on Community Division Method Under Network Formal Context

Jisuanji kexue yu tansuo, 2021
Network community division is the basis of concept cognition and pattern learning from social networks, and is also a hot topic in the study of machine learning under the network background.
LIU Wenxing, FAN Min, LI Jinhai
doaj   +1 more source