Results 51 to 60 of about 756 (166)
Use of Concept Lattices for Data Tables with Different Types of Attributes
Journal of Information and Organizational Sciences, 2012 In this paper we describe the application of Formal Concept Analysis (FCA) for analysis of data tables with different types of attributes. FCA represents one of the conceptual data mining methods.
Peter Butka, Jozef Pocs, Jana Pocsova
doaj
IET Smart Energy Systems, EarlyView.A PER‐MATD3‐based bidding model for generators in day‐ahead joint energy and reserve markets is proposed. An aggressiveness coefficient quantifies risk preference, KAN improves interpretability and simulation results demonstrate enhanced coordinated decision‐making and training stability.
Xinge Xu +5 more
wiley +1 more source
Pacific Economic Review, EarlyView.ABSTRACT This study investigates the impact of China's recent real estate crisis, stemming from Evergrande's struggles, on the return and risk profiles of US‐listed exchange traded funds (ETFs) tracking Chinese stock market indexes. Analysing 26 funds from February 2, 2018 to December 31, 2024, we first employ a VAR model to assess contagion and ...
Gerasimos Rompotis +2 more
wiley +1 more source
Risk Scenarios for European Rearmament
Global Policy, EarlyView.ABSTRACT Since Russia's invasion of Ukraine in 2022, the European Union has launched a flurry of initiatives to ramp up European defence spending. Efforts to bolster European defence have further intensified in response to the United States' increasingly hostile stance towards its erstwhile European allies.
Mette Eilstrup‐Sangiovanni
wiley +1 more source
Algorithm for Mining Maximal Balanced Bicliques Using Formal Concept Analysis
IEEE AccessOne of the most fundamental models for cohesive subgraph mining in network analysis is that which involves the use of cliques. In bipartite graph analysis, the detection of maximal balanced bicliques (MBB) is an important problem with numerous ...
Ilkhomjon Sadriddinov +5 more
doaj +1 more source
A Novel Concept Acquisition Approach Based on Formal Contexts
The Scientific World Journal, 2014 As an important tool for data analysis and knowledge processing, formal concept analysis (FCA) has been applied to many fields. In this paper, we introduce a new method to find all formal concepts based on formal contexts.
Ting Qian, Ling Wei
doaj +1 more source
Exploring Different Paradigms to Extract Proper Implications From High Dimensional Formal Contexts
IEEE Access, 2020 Formal Concept Analysis (FCA) is an applied mathematical technique for data analysis, in which the relations between objects and attributes are identified.
Julio C. V. Neves +5 more
doaj +1 more source
Alimentary Pharmacology &Therapeutics, EarlyView.In this nationwide ENEIDA registry study, anti‐TNF therapy after prior exposure to a different biologic mechanism of action showed reduced treatment durability in inflammatory bowel disease, with a particularly marked impact in ulcerative colitis, where short‐ and long‐term clinical effectiveness was also lower. ABSTRACT Background The expanding use of
Carmen Yagüe Caballero +85 more
wiley +1 more source
Early Childhood Caries and Maternal Education: Systematic Review and Meta‐Analysis
Community Dentistry and Oral Epidemiology, EarlyView.ABSTRACT Objectives To review and synthesise the available evidence on the association between maternal education and early childhood caries (ECC). Methods A comprehensive search strategy was employed to identify relevant studies published up to September 2025. Databases searched were PubMed, Scopus, Web of Science, and EMBASE.
Roger Keller Celeste +6 more
wiley +1 more source
Interpretable heart disease risk prediction via FCA-constrained logistic regression
Health Informatics JournalObjective To develop an interpretable and clinically coherent heart disease risk prediction model by integrating Formal Concept Analysis (FCA) with a novel closure-constrained logistic regression that enforces coefficient coherence within FCA-derived ...
Arman Salehi +3 more
doaj +1 more source