Document (#36302)

Author
Mayr, P.
Title
Bradfordizing mit Katalogdaten : Alternative Sicht auf Suchergebnisse und Publikationsquellen durch Re-Ranking
Source
BuB. 62(2010) H.1, S.61-63
Year
2010
Series
Lesesaal: Der Katalog der Zukunft
Abstract
Nutzer erwarten für Literaturrecherchen in wissenschaftlichen Suchsystemen einen möglichst hohen Anteil an relevanten und qualitativen Dokumenten in den Trefferergebnissen. Insbesondere die Reihenfolge und Struktur der gelisteten Ergebnisse (Ranking) spielt, neben dem direkten Volltextzugriff auf die Dokumente, für viele Nutzer inzwischen eine entscheidende Rolle. Abgegrenzt wird Ranking oder Relevance Ranking von sogenannten Sortierungen zum Beispiel nach dem Erscheinungsjahr der Publikation, obwohl hier die Grenze zu »nach inhaltlicher Relevanz« gerankten Listen konzeptuell nicht sauber zu ziehen ist. Das Ranking von Dokumenten führt letztlich dazu, dass sich die Benutzer fokussiert mit den oberen Treffermengen eines Suchergebnisses beschäftigen. Der mittlere und untere Bereich eines Suchergebnisses wird häufig nicht mehr in Betracht gezogen. Aufgrund der Vielzahl an relevanten und verfügbaren Informationsquellen ist es daher notwendig, Kernbereiche in den Suchräumen zu identifizieren und diese anschließend dem Nutzer hervorgehoben zu präsentieren. Phillipp Mayr fasst hier die Ergebnisse seiner Dissertation zum Thema »Re-Ranking auf Basis von Bradfordizing für die verteilte Suche in Digitalen Bibliotheken« zusammen.
Theme
Katalogfragen allgemein
Informetrie
Retrievalalgorithmen
Aid
Bradford-Gesetz

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