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Wille, R.: Line diagrams of hierarchical concept systems (1984) 0.03

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Wille, R.: Geometric representations of concept lattices (1989) 0.00

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Source: Conceptual and numerical analysis of data. Ed.: O. Opitz

Lex, W.: ¬A representation of concepts for their computerization (1987) 0.00
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Abstract

A lattice theoretical description of concept hierarchies is developed using for attributes the terms "given", "negated", "open" and "impossible" as the truth-values of a four-valued logic. Similar to the theory of B. Ganter and R. Wille so does this framework permit a precise representation of the usual interdependences in a field of related concepts - such as superconcepts, subconcept, contrary concepts etc. -, whenever the concepts under consideration can be sufficiently described by the presence or absence of certain attributes ...

Ganter, B.; Stahl, J.; Wille, R.: Conceptual measurement and many-valued contexts (1986) 0.00

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Source: Classification as a tool of research. Ed.: W. Gaul u. M. Schader

Ganter, B.; Wille, R.: Conceptual scaling (1989) 0.00

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Source: Applications of combinatorics and graph theory to the biological and social sciences. Ed.: F. Roberts

Wille, R.: Knowledge acquisition by methods of formal concept analysis (1989) 0.00

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