Document (#30809)

Author

Baumgartner, R.

Title

Methoden und Werkzeuge zur Webdatenextraktion

Source

Semantic Web: Wege zur vernetzten Wissensgesellschaft. Hrsg.: T. Pellegrini, u. A. Blumauer

Imprint

Berlin : Springer

Year

2006

Pages

S.419-435

Series

X.media.press

Abstract

Das World Wide Web kann als die größte uns bekannte "Datenbank" angesehen werden. Leider ist das heutige Web großteils auf die Präsentation für menschliche Benutzerinnen ausgelegt und besteht aus sehr heterogenen Datenbeständen. Überdies fehlen im Web die Möglichkeiten Informationen strukturiert und aus verschiedenen Quellen aggregiert abzufragen. Das heutige Web ist daher für die automatische maschinelle Verarbeitung nicht geeignet. Um Webdaten dennoch effektiv zu nutzen, wurden Sprachen, Methoden und Werkzeuge zur Extraktion und Aggregation dieser Daten entwickelt. Dieser Artikel gibt einen Überblick und eine Kategorisierung von verschiedenen Ansätzen zur Datenextraktion aus dem Web. Einige Beispielszenarien im B2B Datenaustausch, im Business Intelligence Bereich und insbesondere die Generierung von Daten für Semantic Web Ontologien illustrieren die effektive Nutzung dieser Technologien.

Theme

Data Mining

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