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Rahmstorf, G.: Information retrieval using conceptual representations of phrases (1994) 0.22

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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
Theme: Konzeption und Anwendung des Prinzips Thesaurus

Rahmstorf, G.: Rückkehr von Ordnung in die Informationstechnik? (2000) 0.03
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Abstract

Im Zuge der aktuellen Informationstechnik, der weltweiten Kommunikation und des elektronischen Publizierens scheinen die herkömmlichen Instrumente der Ordnungsstiftung - bibliothekarische Klassifikationssysteme und Thesauren - an den Rand gedrängt zu werden oder sogar ganz zu verschwinden. Andererseits sind die Endbenutzer oft unzufrieden mit dem Ergebnis des Recherchierens im Bestand des unabsehbar wachsenden Informationsangebotes. Ist eine präzise und vollständige Recherche bei den gegebenen technischen und Ökonomischen Verhältnissen überhaupt noch realisierbar'?

Series

Gemeinsamer Kongress der Bundesvereinigung Deutscher Bibliotheksverbände e.V. (BDB) und der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V. (DGI); Bd.1)(Tagungen der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V.; Bd.3

Source

Information und Öffentlichkeit: 1. Gemeinsamer Kongress der Bundesvereinigung Deutscher Bibliotheksverbände e.V. (BDB) und der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V. (DGI), Leipzig, 20.-23.3.2000. Zugleich 90. Deutscher Bibliothekartag, 52. Jahrestagung der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis e.V. (DGI). Hrsg.: G. Ruppelt u. H. Neißer

Rahmstorf, G.: Wortmodell und Begriffssprache als Basis des semantischen Retrievals (2000) 0.03

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Abstract: Der heutigen Retrievaltechnik wird das Projekt eines semantisch basierten Suchsystems gegenübergestellt. Es soll genauer und vollständiger arbeiten sowie systematische Zusammenhänge zwischen Themen unterstützen. Bei diesem Ansatz wird ein umfassendes Wörterbuch mit einer einfachen begrifflichen Darstellung der Wortbedeutungen benötigt. Das Wortmodell bildet Wort, Wortmerkmale, Lemma, Wortbedeutungen (Lesarten), Lesartenmerkmale und Begriffe ab. Begriffe sind formale Ausdrücke einer Begriffssprache. Entsprechend dieser Differenzierung wird Lenunaindexierung, Lesartenindexierung und Begriffsindexierung unterschieden. Begriffe werden mit dem Programm Concepto grafisch konstruiert und erfasst
Source: Informationskompetenz - Basiskompetenz in der Informationsgesellschaft: Proceedings des 7. Internationalen Symposiums für Informationswissenschaft (ISI 2000), Hrsg.: G. Knorz u. R. Kuhlen

Rahmstorf, G.: Semantisches Information Retrieval (1994) 0.01

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Source: Blick Europa! Informations- und Dokumentenmanagement. Deutscher Dokumentartag 1994, Universität Trier, 27.-30.9.1994. Hrsg.: W. Neubauer

Rahmstorf, G.: Concept structures for large vocabularies (1998) 0.00

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Date: 30.12.2001 19:01:22

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