Document (#32391)

Author
Machill, M.
Beiler, M.
Neumann, U.
Title
Leistungsfähigkeit von wissenschaftlichen Suchmaschinen. : ein Experiment am Beispiel von Google Scholar
Source
Macht der Suchmaschinen: The Power of Search Engines. Hrsg.: Machill, M. u. M. Beiler
Imprint
Köln : Halem
Year
2007
Pages
S.327-347
Abstract
Das Internet wurde schon seit seinen ersten Anfängen 1969 wissenschaftlich genutzt und war bis zu seiner Kommerzialisierung Mitte der 1990er-Jahre ein akademisch geprägtes Netz. In Deutschland informieren sich 42 Prozent der Nutzer im Internet häufig oder gelegentlich über Wissenschaft, Forschung und Bildung. Damit stehen wissenschaftliche Informationen gleich hinter aktuellen Nachrichten (45%) an zweiter Stelle der meistgenutzten Internetinhalte. Das World Wide Web ist heute ein riesiges, schnell wachsendes und den Globus umspannendes Informationsreservoir. Verschiedene Studien schätzen das Oberflächen-Web auf bis zu über elf Milliarden Seiten. Für wissenschaftliche Recherchen ist vor allem das 550 Milliarden Seiten umfassende Deep Web interessant, da es zahlreiche qualitativ hochwertige Fachtexte enthält. Das Deep Web ist jedoch schwer zugänglich, da es aus dynamisch aus Datenbanken generierten und zugangsbeschränkten oder kostenpflichtigen Informationen besteht. Die meisten herkömmlichen, allgemeinen Internet-Suchmaschinen haben auf diese Inhalte keinen Zugriff und können diese nicht indexieren; für Nutzer sind sie somit nicht auffindbar. Daher sind gesonderte Suchmaschinen zur gezielten Vermittlung und Selektion von akademischen Informationen notwendig.
Theme
Suchmaschinen
Object
Google Scholar

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