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  • × theme_ss:"Formale Begriffsanalyse"
  • × year_i:[1980 TO 1990}
  1. Wille, R.: Liniendiagramme hierarchischer Begriffssysteme (1984) 0.01 
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    Footnote
    Engl. in: International classification 11(1984) S.77-86
    Source
    Anwendungen in der Klassifikation. II: Datenanalyse und numerische Klassifikation. Proc. 8. Jahrestagung der Gesellschaft für Klassifikation, Hofgeismar, 10.-13.4.1984. Hrsg.: H.H. Bock
  2. Wille, R.: Lattices in data analysis : how to draw them with a computer (1989) 0.01 
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  3. 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 ...

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