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Schulz, U.: Einige Aspekte zukünftiger Inhaltserschließung und Online-Benutzerkataloge (1990)
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Schäfer, U.; Skalski, D.: Lokale, stand-alone Online-Benutzerkataloge (OPAC) : Entwicklungsstand, Grundlagen und Probleme unter besonderer Berücksichtigung des Mikrocomputereinsatzes (1986)
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Wiesenmüller, H.: Verbale Erschließung in Katalogen und Discovery-Systemen : Überlegungen zur Qualität (2021)
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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
- Theme
- Verbale Doksprachen im Online-Retrieval
- Type
- a
-
Lee, Y.Y.; Yang, S.Q.: Folksonomies as subject access : a survey of tagging in library online catalogs and discovery layers (2012)
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- Abstract
- This paper describes a survey on how system vendors and libraries handled tagging in OPACs and discovery layers. Tags are user added subject metadata, also called folksonomies. This survey also investigated user behavior when they face the possibility to tag. The findings indicate that legacy/classic systems have no tagging capability. About 47% of the discovery tools provide tagging function. About 49% of the libraries that have a system with tagging capability have turned the tagging function on in their OPACs and discovery tools. Only 40% of the libraries that turned tagging on actually utilized user added subject metadata as access point to collections. Academic library users are less active in tagging than public library users.
- Source
- Beyond libraries - subject metadata in the digital environment and semantic web. IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn
- Type
- a
-
Bangalore, N.S.: Mystery names : plausible sounding names resulting in zero hits in OPACs (1996)
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- Abstract
- Investigates the reasons for one category of zeor hit author searches - that of plausible but unverifiable names - encountered by end users of the NOTIS OPAC at the University of Illinois at Chicago. The names were not found in the national bibliographic utility (OCLC), the local database (LUIS), the local card catalogue, or large online files of journal articles (Wilson indexes). Concludes that, while the problem of user queries resulting in no retrievals cannot be entirely remedied, a number of things can be done to minimize the problem, including: putting in palce an international system to exchange authority data for names; simplification of cataloguing riles; a retrieval system that allows natural language best match retrieval, ranked output, relevance feedback, and other post Boolean techniques; expanded use of keyword searching; and user education
- Type
- a
-
Chen, S.-f.: ¬A general description of the automation in cataloguing (1995)
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- Abstract
- Discusses the growth of automated catalogues in Taiwan and the rest of the world. Considers an automated catalogue as the prerequisite for a complete bibliographical database. Covers the meaning, functions, scope, pre-operation, post-project and future development of automated cataloguing
- Type
- a
-
Rädler, K.: In Bibliothekskatalogen "googlen" : Integration von Inhaltsverzeichnissen, Volltexten und WEB-Ressourcen in Bibliothekskataloge (2004)
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- Abstract
- Ausgangslage Die Katalog-Recherchen über Internet, also von außerhalb der Bibliothek, nehmen erwartungsgemäß stark zu bzw. sind mittlerweile die Regel. Damit ist natürlich das Bedürfnis und die Notwendigkeit gewachsen, über den Titel hinaus zusätzliche inhaltliche Informationen zu erhalten, die es erlauben, die Zweckmäßigkeit wesentlich besser abschätzen zu können, eine Bestellung vorzunehmen oder vielleicht auch 50 km in die Bibliothek zu fahren, um ein Buch zu entleihen. Dieses Informationsdefizit wird zunehmend als gravierender Mangel erfahren. Inhaltsverzeichnisse referieren den Inhalt kurz und prägnant. Sie sind die erste Stelle, welche zur Relevanz-Beurteilung herangezogen wird. Fast alle relevanten Terme einer Fachbuchpublikation finden sich bereits dort. Andererseits wird immer deutlicher, dass die dem bibliothekarischen Paradigma entsprechende intellektuelle Indexierung der einzelnen dokumentarischen Einheiten mit den engsten umfassenden dokumentationssprachlichen Termen (Schlagwörter, Klassen) zwar eine notwendige, aber keinesfalls hinreichende Methode darstellt, das teuer erworbene Bibliotheksgut Information für den Benutzer in seiner spezifischen Problemstellung zu aktivieren und als Informationsdienstleistung anbieten zu können. Informationen zu sehr speziellen Fragestellungen, die oft nur in kürzeren Abschnitten (Kapitel) erörtert werden, sind derzeit nur indirekt, mit großem Zeitaufwand und oft überhaupt nicht auffindbar. Sie liegen sozusagen brach. Die Tiefe der intellektuellen Indexierung bis in einzelne inhaltliche Details zu erweitern, ist aus personellen und damit auch finanziellen Gesichtspunkten nicht vertretbar. Bibliotheken fallen deshalb in der Wahrnehmung von Informationssuchenden immer mehr zurück. Die enorme Informationsvielfalt liegt hinter dem Informations- bzw. Recherchehorizont der bibliographischen Aufnahmen im Katalog.
- Location
- A
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
- Type
- a
-
Sellers, M.: Cataloging decision consequences : accessing table of contents in the online catalog (1994)
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- Abstract
- Explores the retrieval and user issues related to the impact of including table of contents notes as a searchable field in online catalogues. Includes a review of evaluation criteria, a summary of previously published studies, and a conceptual model which addresses some of the disadvantages of the searchable MARC field
- Date
- 25.10.1995 21:10:29
- Type
- a
-
OPACs: an overview (1993)
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- Abstract
- Part of a special section on OPACs. Gives an overview of OPACs. Describes and examines: Boolean searching, post Boolean searching, bibliographic records, user interfaces, current research, added OPAC functionality, and comment on the provision of OPAC equipment for the end user. Introduces the OPAC 93 system developed by the British Library
- Type
- a
-
Wissen, D.: Ist der OPAC von morgen heute schon möglich? (2009)
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- Abstract
- Wissen Sie, wie sich zukünftig Bibliografien, Kataloge und OPACs bedienen lassen? Wenn wir über die Zukunft von Bibliografien, Katalogen und OPACs nachdenken, denken wir dann zunächst an Medien verzeichnisse oder an offene, kommunikative Webportale, die es jedem ermöglichen, sich nach Art des Web 2.0 an der Erfassung der bibliografischen Daten zu beteiligen? Wenn wir mediale Internet angebote des Web 2.0 genauer betrachtet, bieten diese meh als lediglich die Verzeichnung von Medien. Es zeigt sich, dass angesichts aktueller Entwicklungen in Richtung Web 2.0 die Frage neu gestellt werden sollte, in welcher Form zukünftig mediografische Portale ihren Nutzen haben könnten. Beispielsweise könnte ein OPAC 2.0 jedem Interessenten einen individuellen Zugang zu einem Informationsraum offerieren, der sich funktionell ganz den eigenen Bedürfnissen und Wünschen des Bibliotheksnutzers anpasst und nicht nur Zugang zu Informationen ermöglicht, sondern auch vollmedialen Zugriff, inhaltliche Verweisfunktionen, erweiterten Service sowie Kommunikationsfunktionen. Die Antwort lautet also, dass Archive und Bibliotheken mehr über mediografische Portale nachden ken sollten und nicht über Bibliografien, Kataloge und OPACs! Eine darauf folgend wichtige Frage ist, ob diese Portale sowohl inhaltlich als auch funktionell nicht nur unseren Archiv und Bibliotheksnutzern mehr Service bieten, sondern auch einen höheren Zweck für Archive und Bibliotheken selbst darstellen? Die Online Techniken des Web 2.0 und dessen Portale offerieren virtuelle Welten und neue Möglichkeiten zum Aktiv und Produktivsein, also insgesamt zum Proaktivsein unserer Nutzer. Die Betrachtung solcher Internetangebote zeigt, dass sich mediografische Angebote bereits in einer Entwicklung befinden. Doch wenn es eine solche Entwicklung gibt, muss überlegt werden, wie Archive und Bibliotheken sich hierbei einbringen können. Somit zeichnet sich bei diesem Thema eine Brisanz ab. Denn zu bedenken ist, dass mediografische Daten bereits in Rechercheergebnissen bei Online-Datenbanken, Internet Suchmaschinen, Online Enzyklopädien oder anderen Angeboten eine Rolle spielen.
-
Crawford, W.: Patron access : Issues for online catalogs (1987)
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- Classification
- Bib A 291 / On-line-Katalogisierung
- Date
- 29. 5.2007 12:58:52
- LCSH
- Online library catalogs
Online bibliographic searching
- RSWK
- Online-Katalog / Einführung
- SBB
- Bib A 291 / On-line-Katalogisierung
- Subject
- Online-Katalog / Einführung
Online library catalogs
Online bibliographic searching
-
Fellows, G.; Tsang, P.: ¬A common interface for remote access on online library catalogues (1993)
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- Abstract
- Examines the problems that users have remotely accessing libraries' online catalogue system in Australia and around the world using Telnet. Examines the frustrations users have experienced in dealing with the various commands they need to use when searching from one library to another
- Date
- 20.10.2000 13:29:02
- Type
- a
-
Williamson, N.J.: Subject access in the on-line environment (1984)
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- Footnote
- Ein guter und lesenswerter Einstieg in die Probleme des sachlichen Online-Retrievals
- Theme
- Grundlagen u. Einführungen: Allgemeine Literatur
- Type
- a
-
Umstätter, W.: ¬Die Kunst der Frage (1993)
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- Footnote
- Bezugnahme auf 'Schulz, U.: Einige Anforderungen an die Qualität von Normdateien aus der Sicht der inhaltlichen Erschließung für Online-Kataloge'
- Type
- a
-
Weidemüller, H.-U.: Schlagwortketten im OPAC (1996)
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- Theme
- Verbale Doksprachen im Online-Retrieval
- Type
- a
-
Rieh, S.Y.; Kim, Y.-M.; Markey, K.: Amount of invested mental effort (AIME) in online searching (2012)
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- Abstract
- This research investigates how people's perceptions of information retrieval (IR) systems, their perceptions of search tasks, and their perceptions of self-efficacy influence the amount of invested mental effort (AIME) they put into using two different IR systems: a Web search engine and a library system. It also explores the impact of mental effort on an end user's search experience. To assess AIME in online searching, two experiments were conducted using these methods: Experiment 1 relied on self-reports and Experiment 2 employed the dual-task technique. In both experiments, data were collected through search transaction logs, a pre-search background questionnaire, a post-search questionnaire and an interview. Important findings are these: (1) subjects invested greater mental effort searching a library system than searching the Web; (2) subjects put little effort into Web searching because of their high sense of self-efficacy in their searching ability and their perception of the easiness of the Web; (3) subjects did not recognize that putting mental effort into searching was something needed to improve the search results; and (4) data collected from multiple sources proved to be effective for assessing mental effort in online searching.
- Type
- a
-
Document retrieval systems (1988)
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- Content
- Entählt u.a. die Beiträge: CLEVERDON, C.: Optimizing convenient online access to bibliographic databases; SALTON, G.: Automatic indexing and abstracting; HARTER, S.P.: Statistical approaches to automatic indexing; WALKER, S.: Improving subject access painlessly: recent work on the OKAPI online catalogue projects; SPARCK JONES, K.: A statistical interpretation of term specifity and its application in retrieval; CROFT, W.B. u. D.J. HARPER: Using probabilistic model of document retrieval without relevance information; BERSTEIN, L. u. R.E. WILLIAMSON: Testing of a natural language retrieval system for a full text knowledge base; FRAKES, W.B.: Term conflation for information retrieval; PORTER, M. u. V. GALPIN: Relevance feedback in a public access catalogue for a research library: MUSCAT at the Scott Polar Institute; SALTON, G. u. M.J. McGILL: The SMART and SIRE experimental retrieval systems; BRZOZOWSKI, J.P. MASQUERADE: searching full text of abstracts using automatic indexing; DOSZKOCS, T.E.: CITE NLM: Natural-language searching in an online catalog
-
Cochrane, P.A.: Redesign of catalogs and indexes for improved subject access : selected papers of Pauline A. Cochrane (1985)
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- Date
- 29. 5.2007 12:42:58
- LCSH
- Online library catalogs / Subject access
Online bibliographic searching
- RSWK
- Online-Literaturrecherche / Schlagwortkatalog (BVB)
- Subject
- Online-Literaturrecherche / Schlagwortkatalog (BVB)
Online library catalogs / Subject access
Online bibliographic searching
-
AssoziativOPAC : SpiderSearch von BOND (2003)
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- Content
- "Der Hersteller von Bibliothekssoftware BOND erweitert sein Produktangebot um den Assoziativ-OPAC SpiderSearch. Dieser graphische Web-OPAC sucht zu einem Stichwort Assoziative, d.h. sinnoder sprachwissenschaftlich verwandte Begriffe. Diese baut er spinnennetzartig um den zentralen Suchbegriff herum auf. Anhand der ihm angebotenen Assoziative kann sich der Leser sehr einfach und anschaulich durch den Medienbestand der Bibliothek klicken. So findet er schnell und komfortabel relevante Medien, die mit herkömmlichen Suchverfahren nur schwer recherchierbar wären. Überlegungen über verwandte Suchbegriffe und angrenzende Themengebiete bleiben dem Benutzer erspart: SpiderSearch navigiert den Benutzer ähnlich wie beim Surfen durch Webseiten durch sämtliche Themen, die mit dem Suchbegriff in Zusammenhang stehen. Auch aufwändiges Durchblättern einer riesigen Suchergebnisliste ist nicht nötig. Durch die im semantischen Netz vorgeschlagenen Begriffe kann der Benutzer sein Thema genau eingrenzen und erhält in seiner Trefferliste nur passende Medien. Diese ordnet SpiderSearch nach ihrer Relevanz, so dass der Leser die benötigte Literatur einfach und komfortabel findet. Wie auch im normalen Web-OPAC enthält die Trefferliste Angaben zu Titel, Standort und Verfügbarkeit des Mediums. Zur einfachen Zuordnung der Medienart ist jedem Medium ein entsprechendes Symbol zugewiesen. Per Mausklick erhält der Benutzer Detailangaben zum Medium und optional eine Ansicht des Buchcovers. SpiderSearch ist ein Zusatzmodul zur Software BIBLIOTHECA2000 von BOND und setzt auf den Web-OPAC auf."
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
- Type
- a
-
Schulz, U.: "Wie der Schnabel gewachsen ist" : Über die Qualität von OPACs - Anforderungen, Realität, Perspektiven (1998)
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- Date
- 29. 1.2011 18:39:11
- Type
- a
