Document (#35730)

Author
Leissing, U.
Rädler, K.
Hauer, M.
Title
Query-Expansion durch Fachthesauri : Erfahrungsbericht zu dandelon.com, Vorarlberger Parlamentsinformationssystem und vorarlberg.at
Source
Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
Imprint
Würzburg : Ergon Verlag
Year
2010
Pages
S.103-110
Series
Fortschritte in der Wissensorganisation; Bd.11
Abstract
Die Kombination von gleichzeitig mehreren oder vielen intellektuell konstruierten Thesauri und maschineller Indexierung der Texte führt zu einer umfassenderen und spezifischeren Beschreibung von Dokumenten als die intellektuelle Klassifizierung oder die Indexierung allein. Durch die Expansion der Suchfrage um Thesauruseinträge wird der recall deutlich erhöht. Zugleich kann die intellektuelle Klassifizierung in überschaubaren Domänen dazu genutzt werden, baumartig in Dokumentenkollektionen zu navigieren oder die Suche erst in Teilbereichen der Klassifikation zu beginnen, um die precision zu erhöhen. Der Einsatz von Thesauruskollektionen wird an den Beispielen dandelon.com, Landtagsinformationssystem Vorarlberg und der Landeshomepage vorarlberg.at dargestellt.
Theme
Kataloganreicherung
Verbale Doksprachen im Online-Retrieval
Object
dandelon
Vorarlberger Parlamentsinformationssystem
vorarlberg.at

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