Search (4 results, page 1 of 1)

  • × author_ss:"Fischer, D.H."
  • × year_i:[1990 TO 2000}
  1. Fischer, D.H.; Möhr, W.; Rostek, L.: ¬A modular, object-oriented and generic approach for building terminology maintenance systems (1996) 0.00
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    Abstract
    Five years ago, we raised the question: is there a data model which is general enough such that all existing thesauri can be represented by a specialization of this general model without loss of information? The answer was not given at that time, but we referred to the principle of abstraction, well supported in object-oriented data modelling. We gained the empirical basis for that process of abstraction by modelling existing thesauri and a terminological dictionary; an abstracting view was afterwards presented in a paper to the TKE'93 conference. The present paper reports on a third step of abstraction with its very concrete consequences, embodies in a software called TerminologyFramework(TFw)
    Type
    a
  2. Rostek, L.; Mohr, W.; Fischer, D.H.: Weaving a web : the structure and creation of an object network representing an electronic reference work (1993) 0.00
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    Abstract
    Proposes an object oriented document model for the improvement of large scale electronic publications such as encyclopedic reference works that, in addition to the SGML structured text corpus, represents other access structures, in particular a fine grained, highly structured, tightly interconnected network of domain specific objects and facts. Presents strategies and tools for efficient acquisition of the desired object network into an Editor's Workbench. The application context is the 'Dictionary of Art' to be published as a print edition by Macmillan in 1996
    Type
    a
  3. Fischer, D.H.: From thesauri towards ontologies? (1998) 0.00
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    Abstract
    The ISO 2788 guidelines for monolingual thesauri contain a differentiation of "the hierarchical relationship" into "generic", "partitive", and "instance", which, for purposes of document retrieval, was deemed adequate. However, ontologies, designed as language inventories for a wider scope of knowledge representation, are based on all these and some more logical differentiations. Rereading the ISO 2788 standard and inspecting the published Cyc Upper Ontology, it is argued that the adoption of the document-retrieval definition of subsumption generally prevents the conception or use of a thesaurus as a substructure of an ontology of the new kind as constructed for AI applications. When a thesaurus is used for fact description and inference on fact descriptions, the instance-of relationship too should be reconsidered: It may also link concepts and metaconcepts, and then its distinction from subsumption is needed. The treatment of the instance-of relationship in thesauri, the Cyc Upper Ontology, and WordNet is described from this perspective
    Type
    a
  4. Fischer, D.H.: Consistency rules and triggers for thesauri (1991) 0.00
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    Abstract
    From the point of view of an object-orientated knowledge representation language, desirable control functions for thesauri are discussed in relation to a recently published catalogue
    Type
    a