Results 91 to 100 of about 9,774 (301)

Representing a concept lattice by a graph

Discrete Applied Mathematics, 2004
Concept lattices (also called Galois lattices) are an ordering of the maximal rectangles defined by a binary relation. In this paper, we present a new relationship between lattices and graphs: given a binary relation R, we define an underlying graph G_R, and establish a one-to-one correspondence between the set of elements of the concept lattice of R ...
Berry, Anne, Sigayret, Alain
openaire   +3 more sources

Terrorist threat assessment with formal concept analysis. [PDF]

The National Police Service Agency of the Netherlands developed a model to classify (potential) jihadists in four sequential phases of radicalism. The goal of the model is to signal the potential jihadist as early as possible to prevent him or her to ...
Morsing, Shanti, Elzinga, Paul, Dedene, Guido, Poelmans, Jonas, Viaene, Stijn   +4 more
core  

L-Fuzzy Sets and Isomorphic Lattices: Are All the “New” Results Really New? †

Mathematics, 2018
We review several generalizations of the concept of fuzzy sets with two- or three-dimensional lattices of truth values and study their relationship. It turns out that, in the two-dimensional case, several of the lattices of truth values considered here ...
Erich Peter Klement, Radko Mesiar
doaj   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Representation of Fuzzy Concept Lattices in the Framework of Classical FCA

Journal of Applied Mathematics, 2013
We describe a representation of the fuzzy concept lattices, defined via antitone Galois connections, within the framework of classical Formal Concept Analysis. As it is shown, all needed information is explicitly contained in a given formal fuzzy context
Peter Butka, Jozef Pócs, Jana Pócsová
doaj   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Learning Concept Hierarchies from Text Corpora using Formal Concept Anaylsis

, 2005
Cimiano P, Hotho A, Staab S. Learning Concept Hierarchies from Text Corpora using Formal Concept Anaylsis. Journal of Artificial Intelligence Research (JAIR).
Staab, Steffen, Hotho, Andreas, Cimiano, Philipp ; https://orcid.org/   +2 more
core  

A Geometrical Heuristic for Drawing Concept Lattices

, 1995
Concept lattices are used in formal concept analysis to represent data conceptually so that the original data are still recognizable. Their line diagrams should reflect the semantical relationships within the data.
Rudolf Wille, Stumme, Gerd, Gerd Stumme, Stumme, G., Wille, Rudolf   +4 more
core   +1 more source

Stable Topology on Ideals for Residuated Lattices

Transactions on Fuzzy Sets and Systems
Residuated lattices are the major algebraic counterpart of logics without contraction rule, as they are more generalized logic systems including important classes of algebras such as Boolean algebras, MV-algebras, BL-algebras, Stonean residuated lattices,
Ariane GABRIEL Tallee Kakeu, Luc E. Diekouam, Blaise Bleriot Koguep N., Celestin Lele, Daniel Akume   +4 more
doaj  

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

Advanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad, Aleksander Kostka, Gowtham Arivanandhan, Yujiao Li, Alan Savan, Manfred Kohl, Alfred Ludwig   +6 more
wiley   +1 more source