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Rahmstorf, G.: Concept structures for large vocabularies (1998)
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- Abstract
- A technology is described which supports the acquisition, visualisation and manipulation of large vocabularies with associated structures. It is used for dictionary production, terminology data bases, thesauri, library classification systems etc. Essential features of the technology are a lexicographic user interface, variable word description, unlimited list of word readings, a concept language, automatic transformations of formulas into graphic structures, structure manipulation operations and retransformation into formulas. The concept language includes notations for undefined concepts. The structure of defined concepts can be constructed interactively. The technology supports the generation of large vocabularies with structures representing word senses. Concept structures and ordering systems for indexing and retrieval can be constructed separately and connected by associating relations.
- Date
- 30.12.2001 19:01:22
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Rahmstorf, G.: Visualisierung : Vom Begriff zum Bild (1998)
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- Abstract
- Unter Visualisierung wird hier die planende Gestaltung und zeichnerische Realisierung eines Bildes nach einer sprachlich vermittelten Vorgabe eines Themas verstanden. Der Beitrag grenzt diese Aufgabenstellung von anderen Ausgangssituationen beim Zeichnen ab. Im Hauptteil dieser Arbeit wird ein kognitives Modell des Visualisierungsprozesses entworfen. Dabei werden verschiedene Phasen von der Erkennung der Vorgabe bis zur visuellen Wahrnehmung der schon soweit realisierten Zeichnung unterschieden. Aus einer begrifflichen Repräsentation des Themas entsteht über Erinnerungsbilder und Vorstellungsbilder das innere Bild der Zeichnung. Mit der Beschreibung des Modells werden grundlegende Fragen nach dem Zusammenwirken von begrifflichen und bildhaften Repräsentationen aufgeworfen und diskutiert.
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Rahmstorf, G.: ¬Der eigene Kern der Dokumentation im Wandel der Technik (1997)
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Rahmstorf, G.: Semantisches Information Retrieval (1994)
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Rahmstorf, G.: Wissensorganisation und Wissensvertextung (1995)
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- Source
- Konstruktion und Retrieval von Wissen: 3. Tagung der Deutschen ISKO-Sektion einschließlich der Vorträge des Workshops "Thesauri als terminologische Lexika", Weilburg, 27.-29.10.1993. Hrsg.: N. Meder u.a
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Rahmstorf, G.: ¬A new thesaurus structure for semantic retrieval (1994)
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Rahmstorf, G.: Information retrieval using conceptual representations of phrases (1994)
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- Abstract
- The information retrieval problem is described starting from an analysis of the concepts 'user's information request' and 'information offerings of texts'. It is shown that natural language phrases are a more adequate medium for expressing information requests and information offerings than character string based query and indexing languages complemented by Boolean oprators. The phrases must be represented as concepts to reach a language invariant level for rule based relevance analysis. The special type of representation called advanced thesaurus is used for the semantic representation of natural language phrases and for relevance processing. The analysis of the retrieval problem leads to a symmetric system structure
