Search (78 results, page 1 of 4)

Wiesenmüller, H.: Verbale Erschließung in Katalogen und Discovery-Systemen : Überlegungen zur Qualität (2021) 0.07
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Abstract

Beschäftigt man sich mit Inhaltserschließung, so sind zunächst zwei Dimensionen zu unterscheiden - die Wissensorganisationssysteme selbst (z. B. Normdateien, Thesauri, Schlagwortsprachen, Klassifikationen und Ontologien) und die Metadaten für Dokumente, die mit diesen Wissensorganisationssystemen erschlossen sind. Beides steht in einer Wechselwirkung zueinander: Die Wissensorganisationssysteme sind die Werkzeuge für die Erschließungsarbeit und bilden die Grundlage für die Erstellung konkreter Erschließungsmetadaten. Die praktische Anwendung der Wissensorganisationssysteme in der Erschließung wiederum ist die Basis für deren Pflege und Weiterentwicklung. Zugleich haben Wissensorganisationssysteme auch einen Eigenwert unabhängig von den Erschließungsmetadaten für einzelne Dokumente, indem sie bestimmte Bereiche von Welt- oder Fachwissen modellartig abbilden. Will man nun Aussagen über die Qualität von inhaltlicher Erschließung treffen, so genügt es nicht, den Input - also die Wissensorganisationssysteme und die damit generierten Metadaten - zu betrachten. Man muss auch den Output betrachten, also das, was die Recherchewerkzeuge daraus machen und was folglich bei den Nutzer:innen konkret ankommt. Im vorliegenden Beitrag werden Überlegungen zur Qualität von Recherchewerkzeugen in diesem Bereich angestellt - gewissermaßen als Fortsetzung und Vertiefung der dazu im Thesenpapier des Expertenteams RDA-Anwendungsprofil für die verbale Inhaltserschließung (ET RAVI) gegebenen Hinweise. Im Zentrum steht die verbale Erschließung nach den Regeln für die Schlagwortkatalogisierung (RSWK), wie sie sich in Bibliothekskatalogen manifestiert - gleich, ob es sich dabei um herkömmliche Kataloge oder um Resource-Discovery-Systeme (RDS) handelt.

Date

24. 9.2021 12:22:02

Li, Y.-O.; Leung, S.W.: Computer cataloging of electronic Journals in unstable Aggregator Databases the Hong Kong Baptist University Library experience (2001) 0.06

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Date: 10. 9.2000 17:38:22
Theme: Elektronische Dokumente

Gray, J.: Accessing electronic resources via the library catalogue at Monash University Library (1998) 0.03

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Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988) 0.03

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Source: Program. 22(1988), S.21-31

Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988) 0.03

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Source: Program. 22(1988), S.133-142

Moncrieff, J.: Accessing electronic resources via the library catalogue : the Deskin University experience (1998) 0.03

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Oberhauser, O.; Labner, J.: Relevance Ranking in Online-Katalogen : Informationsstand und Perspektiven (2003) 0.03
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Abstract

Bekanntlich führen Suchmaschinen wie Google &Co. beider Auflistung der Suchergebnisse ein "Ranking" nach "Relevanz" durch, d.h. die Dokumente werden in absteigender Reihenfolge entsprechend ihrer Erfüllung von Relevanzkriterien ausgeben. In Online-Katalogen (OPACs) ist derlei noch nicht allgemein übliche Praxis, doch bietet etwa das im Österreichischen Bibliothekenverbund eingesetzte System Aleph 500 tatsächlich eine solche Ranking-Option an (die im Verbundkatalog auch implementiert ist). Bislang liegen allerdings kaum Informationen zur Funktionsweise dieses Features, insbesondere auch im Hinblick auf eine Hilfestellung für Benutzer, vor. Daher möchten wir mit diesem Beitrag versuchen, den in unserem Verbund bestehenden Informationsstand zum Thema "Relevance Ranking" zu erweitern. Sowohl die Verwendung einer Ranking-Option in OPACs generell als auch die sich unter Aleph 500 konkret bietenden Möglichkeiten sollen im folgenden näher betrachtet werden.

Wimmer, W.: Multimedia-Angebote im Bibliothekskatalog : Neue Möglichkeiten durch das ALLEGRO-Programm ALCARTA (1999) 0.02

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Date: 22. 1.2000 19:36:10
22. 1.2000 19:41:58

Mitev, N.; Hildreth, C.R.: ¬Les catalogues interactifs en Grande-Bretagne et aux Etats-Unis (1989) 0.02

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Source: Bulletin des bibliothèques de France. 34(1989) no.1, S.22-47

Wagner, H.: OPAC für jedermann? (1993) 0.02

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Footnote: Eine Replik zu Auer: OPAC und Zeichensatz (Mitteilungen der VÖB 46(1993) H.2, S.21-22)

Auer, G.: Online-Kataloge und Zeichensatz (1993) 0.02

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Source: Mitteilungen der Vereinigung Österreichischer Bibliothekare. 46(1993) H.2, S.21-22

Riesthuis, G.J.A.; Stuurman, P.: Tendenzen in de onderwerpsontsluiting : T.4: Onderwerpsontsluiting en on-line catalogi (1990) 0.02

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Source: Open. 22(1990) no.10, S.326-330

Ostendorp, C.; Trinks-Schulz, H.: Integriertes Bibliothekssystem BABSY/i3v an der Hochschulbibliothek der Fachhochschule Gelsenkirchen (1999) 0.02

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Date: 23. 3.2000 15:22:58

DBV-Rechtskommission: Kataloganreicherung mit Schutzumschlagabbildungen (2006) 0.02

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Footnote: Für weitere Informationen: http://www.bibliotheksverband.de/ko-recht/dokumente/20060427.html.

Hauer, M.: Neue OPACs braucht das Land ... dandelon.com (2006) 0.02
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Abstract

In dandelon.com werden im Gegensatz zu den bisherigen Federated Search-Portal-Ansätzen die Titel von Medien neu mittels intelligentCAPTURE dezentral und kollaborativ erschlossen und inhaltlich stark erweitert. intelligentCAPTURE erschließt maschinell bisher Buchinhaltsverzeichnisse, Bücher, Klappentexte, Aufsätze und Websites, übernimmt bibliografische Daten aus Bibliotheken (XML, Z.39.50), von Verlagen (ONIX + Cover Pages), Zeitschriftenagenturen (Swets) und Buchhandel (SOAP) und exportierte maschinelle Indexate und aufbereitete Dokumente an die Bibliothekskataloge (MAB, MARC, XML) oder Dokumentationssysteme, an dandelon.com und teils auch an Fachportale. Die Daten werden durch Scanning und OCR, durch Import von Dateien und Lookup auf Server und durch Web-Spidering/-Crawling gewonnen. Die Qualität der Suche in dandelon.com ist deutlich besser als in bisherigen Bibliothekssystemen. Die semantische, multilinguale Suche mit derzeit 1,2 Millionen Fachbegriffen trägt zu den guten Suchergebnissen stark bei.

Wimmer, W.: Mit dem 'Surfbrett' in die Bibliothek : der World-Wide-Web Katalog der Bibliothek der Friedrich-Ebert-Stiftung (1996) 0.02

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Date: 22. 4.1996 20:07:57

Recker, I.; Ronthaler, M.; Zillmann, H.: OSIRIS - Osnabrück Intelligent Research Information System : ein Hyperbase Front End System für OPACs (1996) 0.02

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Date: 22. 4.1996 20:07:57

Hogan, S.A.: Educating users about catalogues and cataloguing : the impossible dream (1993) 0.02

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Source: International cataloguing and bibliographic control. 22(1993) no.2, S.23-26

Walker, S.: ¬The Okapi online catalogue research projects (1989) 0.02

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Date: 16. 8.1998 11:22:08

Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991) 0.01

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Source: Canadian journal of information science. 16(1991) no.4, S.2-22

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