Results 211 to 220 of about 381,202 (261)
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Concept reduction on interval formal concept analysis
9th IEEE International Conference on Cognitive Informatics (ICCI'10), 2010A concept clustering method on interval concept lattice is introduced in this paper. Based on the distance between two formal concepts defined, the clustering method is presented. Clustering can reduce the size of interval concept lattice to get better interval lattice structure which can be easier to understand.
Zhou Wen +3 more
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2011
Formal concept analysis identifies conceptual structures among data sets. Multi-level modeling potentialities in formal concept analysis are highlighted.
Rainer Brüggemann, Ganapati P. Patil
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Formal concept analysis identifies conceptual structures among data sets. Multi-level modeling potentialities in formal concept analysis are highlighted.
Rainer Brüggemann, Ganapati P. Patil
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Identifying traits with formal concept analysis
Proceedings of the 20th IEEE/ACM International Conference on Automated Software Engineering, 2005Traits are basically mixins or interfaces but with method bodies. In languages that support traits, classes are composed out of traits. There are two main advantages with traits. Firstly, decomposing existing classes into traits from which they can be recomposed improves the factoring of hierarchies. Secondly it increases the library reuse potential by
Adrian Lienhard +2 more
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Generalized Formal Concept Analysis
2000Formal Concept Analysis is an algebraic model based on a Galois connection that is used for symbolic knowledge exploration from an elementary form of the representation of data (“formal context”). The aim of this paper is to design the theoretical models required for the extension of Formal Concept Analysis to any kind of lattice-structured set of ...
Laurent Chaudron, Nicolas Maille
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Monadic Formal Concept Analysis
2014Formal Concept Analysis (FCA) as inherently relational can be formalized and generalized by using categorical constructions. This provides a categorical view of the relation between “object” and “attributes”, which can be further extended to a more generalized view on relations as morphisms in Kleisli categories of suitable monads. Structure of sets of
Patrik Eklund +3 more
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1999
In this paper, we present a novel approach for approximating concepts in the framework of formal concept analysis. Two main problems are investigated. The first, given a set A of objects (or a set B of features), we want to find a formal concept that approximates A (or B).
Jamil Saquer, Jitender S. Deogun
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In this paper, we present a novel approach for approximating concepts in the framework of formal concept analysis. Two main problems are investigated. The first, given a set A of objects (or a set B of features), we want to find a formal concept that approximates A (or B).
Jamil Saquer, Jitender S. Deogun
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Approximation in Formal Concept Analysis
2005We introduce a pair of rough set approximations in formal concept analysis. The proposed approximation operators are defined based on both lattice-theoretic and set-theoretic operators. The properties of the approximation operators are examined. Algorithms for attribute reduction and object reduction in concept lattices are presented.
Ming-Wen Shao, Wen-Xiu Zhang
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Concept Drift in documents and Formal Concept Analysis
2010Formal Concept Analysis (FCA) enables us to extract conceptual information from data and to visualize its structure in a lattice form. Here, we apply FCA to the analysis of a series of documents published periodically, in order to capture drifts of formal concepts occurred in the series by shifting the corresponding formal context as a viewpoint by ...
Yutaka Miyazaki, Yuzuru Tanaka
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Agreement Contexts in Formal Concept Analysis
2004This paper describes a technique in which some columns of an n-ary relation are interpreted as defining a situation. For example when considering movies, critics and reviews we talk about the situation when the critic is a particular critic. We then construct a formal context called an agreement context designed to show that which is in common between ...
Cole, R. J., Becker, P.
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Basic Level of Concepts in Formal Concept Analysis
2012The paper presents a preliminary study on basic level of concepts in the framework of formal concept analysis (FCA). The basic level of concepts is an important phenomenon studied in the psychology of concepts. We argue that this phenomenon may be utilized in FCA for selecting important concepts.
Radim Belohlávek, Martin Trnecka
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