Document (#8436)

Author

Fuhr, N.

Title

Repräsentationen und Anfragefunktionalität in multimedialen Informationssystemen

Source

Pragmatische Aspekte beim Entwurf und Betrieb von Informationssystemen: Proc. 1. Int. Symposiums für Informationswissenschaft, Universität Konstanz, 17.-19.10.1990. Hrsg.: J. Herget u. R. Kuhlen

Imprint

Konstanz : Universitätsverlag

Year

1990

Pages

S.274-285

Series

Konstanzer Schriften zur Informationswissenschaft; Bd.1

Abstract

Multimediale Informationssysteme (MMIS) verwalten sowohl formatierte Daten als auch multimediale Dokumente und Regeln oder logische Formeln. Im Gegensatz zu Faktendatenbanken kann dabei die Repräsentation der zu verwaltenden Objekte nicht mehr als korrekt und vollständig angenommen werden. Dementsprechend wird die Beantwortung von Anfragen an solche Systeme als unsichere Inferenz aufgefaßt. Es wird aufgezeigt, wie das dazu benötigte unsicher Wissen durch Lernverfahren aus Relevance-Feedback-Daten gewonnen werden kann. Sowohl diese Unsicherheit als auch die interaktive Nutzung von MMIS erfordern zusätzliche Anfragefunktionen wie Frageformulierungshilfen, Browsing, Ranking, Zooming und Relevance Feedback

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