Search (46 results, page 2 of 3)

  • × theme_ss:"Kataloganreicherung"
  1. O'Brien, A.: Online catalogs : enhancements and developments (1994) 0.00 
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    Imprint
    Medford, NJ : Learned Information Inc.
    Source
    Annual review of information science and technology. 29(1994), S.219-242
  2. Smith, I.A.; O'Brien, A.: Signposts to information : keywords, indexes and thesauri (1993) 0.00 
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    Abstract
    Shortened and revised version of a paper presented during an Education Librarian's Group session at the Under One Umbrella Two Conference, organized by the Library Association in Manchester, 9-11 Jul 93. With the possibility of free text searching and easy access to CD-ROM databases, users often do not realise that subject searching is enhanced by familiarity with the controlled vocabulary underlying the indexing system of the database. Discusses the construction of information retrieval thesauri, the problems of terminology and how the use of thesauri can make searching more effective, using education thesauri as examples
  3. Tseng, Y.-H.: Automatic cataloguing and searching for retrospective data by use of OCR text (2001) 0.00 
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    Abstract
    This article describes our efforts in supporting information retrieval from OCR degraded text. In particular, we report our approach to an automatic cataloging and searching contest for books in multiple languages. In this contest, 500 books in English, German, French, and Italian published during the 1770s to 1970s are scanned into images and OCRed to digital text. The goal is to use only automatic ways to extract information for sophisticated searching. We adopted the vector space retrieval model, an n-gram indexing method, and a special weighting scheme to tackle this problem. Although the performance by this approach is slightly inferior to the best approach, which is mainly based on regular expression match, one advantage of our approach is that it is less language dependent and less layout sensitive, thus is readily applicable to other languages and document collections. Problems of OCR text retrieval for some Asian languages are also discussed in this article, and solutions are suggested
    Source
    Journal of the American Society for Information Science and technology. 52(2001) no.5, S.378-390
  4. Enhancing USMARC records with table of contents (1992) 0.00 
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    Abstract
    Considers methods of enriching bibliographic USMARC records for OPACs via a subject enhancement process involving the inclusion of subject information derived from the books' contents tables
  5. Diodato, V.P.: Author indexing (1981) 0.00 
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    Abstract
    Indexing terms supplied by authors can increase subject control of their documents. The terms can be used in the creation of indexes, abstracts, and other devices for information retrieval in the special library. An examination of the American Mathematical Society author indexing program suggests that contributions of authors enhance indexing efforts of editors
  6. Hauer, M.; Diedrichs, R.: Zwischenbilanz Collaborative Catalog Enrichment (2009) 0.00 
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    Content
    Leseprobe: "Bibliothek sind Information Retrieval Systeme Bibliotheken sind nicht chaotische Sammlungen von Medien, sondern sie werden stets als Information Retrieval Systeme implementiert, denn das Wiederfinden bei exakten und bei vagen Anfragen ist von Anfang an das Sammlungsziel. Niemand kennt zum Zeitpunkt der Sammlung die Fragestellung, welche einen zukünftigen Benutzerzu diesem Medium führen soll. Die Art der Sammlungsorganisation bestimmt in hohem Maße die zukünftig mögliche Antwortmenge und deren informatorische Qualität. Viele Sammler kennen die einzelnen Medien recht gut durch eigene Lektüre oder Nutzung, durch Verarbeitung der Inhalte in eigenen Schriften, durch Kenntnis der Autoren oder durch Einschätzungen, Empfehlungen, Meinungen von anderen. Diese Sammler sind "Antwortmaschinen" - können oft mit hoher Präzision und angepasst auf den Kenntnisstand des Fragenden Erklärungen geben, welche aus einer Summe von Medieninhalten gelernt wurden. Genau diesen Typ wünschen sich die meisten Benutzer, führt er doch schnell, fachlich ausgewogen und verständlich ans Ziel. Der nicht ganz so begabte Sammler oder Sammler deutlich größerer Medienmengen kann nur mehr oder weniger gut, auf einzelne Medien oder Mediengruppen hinführen, gibt aber keine fachliche Auskunft mehr - sondern liefert nur Hinweise auf mögliche "Antwort-Container". Zumindest seit der berühmten Bibliothek von Alexandria hilft dieser Sammler seinem eigenen Gedächtnis mit kurzen Notizen nach: Listen von Titeln, von Autoren, von Themen und Referenzen auf den Standort. Praktischer als geschriebene Listen sind wegen der leichteren Sortierbarkeit Karteikarten. Der digitale Record in den Datenbanksystemen der Bibliotheken ist logisch nichts anderes, nur deutlich schneller sortierbar. Als sich in den Siebziger Jahren die heutigen Bibliothekssysteme entwickelten, entschieden sich fast alle Anbieter für zumeist relationale Datenbank-Management-Systeme als Basis-Technologie - gut bewährt in Lagerverwaltung und Buchhaltung in Wirtschaft und Verwaltung. In Welten mit sehr wenig Textinformation. Vage Suche war im Ansatz nicht vorgesehen, ging es doch zunächst nur um digitale "Karteikarten".
    Information Retrieval, Digitalisierung, Speichersysteme, Virtualisierung und Weiterentwicklungen der Datenbank-Management-Systeme erlauben heute aber, dass Katalog und Medium technisch zusammenfallen und eine ganz neue Qualität erreichen können. Kataloganreicherung, wie seit 2002 von der Gruppe um dandelon.com betrieben - angefangen hat es in Bibliotheken in Vorarlberg, Liechtenstein und Schweiz, heute zählt Deutschland, Norwegen, Schweden und Italien dazu - versucht Information Retrieval-Technologie mit den relationalen Datenbanksystemen der Bibliotheken zusammen zubringen. Dazu werden mehr Daten benötigt, als die bisherigen bibliothekarischen Titelbeschreibungen hergeben. Sprachverarbeitungskonzepte sind notwendig, um die Vielfalt der Sprache wieder einzufangen und neue Konzepte für die Anzeige die-serTexte oder anderen Datentypen. Kataloganreicherung ist die derzeit technisch sinnvolle Voraussetzung zum Einsatz von moderner Information Retrieval-Technologien in Bibliotheken. Deren Einsatz ist bei Bibliotheksverbünden auf dem Vormarsch. Die maschinelle Indexierung - mit linguistischen und/oder statistischen Methoden - ist ein mögliches Verfahren in Information Retrieval-Systemen, dessen Resultate auch direkt in "klassischen" OPAC-Systemen nachgenutzt werden kann und damit auch dort eine Recherche auf breiterer terminologischer Basis gestattet. Diese Erweiterung des OPACs um die maschinellen Indexierungsergebnisse stand bei der Vorarlberger Landesbibliothek, dem Pionier unter den "Kataloganreichern" und wohl noch immer größten Einzel-Produzenten, schon 2002 vor der Anzeige der Inhaltsverzeichnisse im Vordergrund. Die maschinelle Indexierung aus intelligentCAPTURE kann leicht in die Kataloge übernommen werden. Schon bald zeigte sich aber im jeweiligen Bibliothekssystem das fehlende Ranking. 2004 startete deshalb "dandelon.com". Die maschinelle Indexierung wird in homöopathischer Dosis in den HEBIS-Katalog übernommen und kommt derzeit beim GBV. Für die Deutschen Nationalbibliothek hat Frau Direktor Dr. Niggemmann auf dem Deutschen Bibliothekartag 2009 in Erfurt die maschinelle Indexierung Klassifizierung, Extraktion weiterer Metadaten und die Ergänzung um zusätzliche Daten - auch abweichend von bisherigen Normdateien - als Projekt angekündigt und deren Übernahme in den Katalog. Ein Meilenstein! Die DNB kündigt damit den Perspektivenwechsel der bibliothekarischen Sicht hin zur Sicht des Endbenutzers an."
  7. Mandel, C.: Enriching the library catalog record for subject access (1985) 0.00 
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    Abstract
    This paper analyzes proposals for augmenting library bibliographic records for improved subject searching in online catalogs. Possible fields for enrichment are described and their likely value assessed. The assessment determines that the main value of enriched records would be to provide access to parts of books. The paper presents arguments for and against adding book content indexing to the online catalog and analyzes the feasibility of eleven alternatives for providing such information
  8. Ihadjadene, M.: ¬Les tables des matières dans les catalogues en ligne : opportunités, méthodes et couts (1998) 0.00 
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    Abstract
    Analysis of research to date on improving subject access by including contents tables in bibliographic records. Results indicate the need for clear methodology (criteria for selecting notoces for enrichment, manual and semi automated methods, cost). Evaluations, based on recall, precision and rate of circulation, indicate manifest benefits, especially in virtual libraries where information is superabundant; but enrichment is a complex process
  9. DeHart, F.E.; Matthews, K.: Subject enhancements and OPACs : planning ahead (1990) 0.00 
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    Abstract
    As librarians plan ahead to make subject enhancements available to online searchers in various possible file locations and formats, they may want to base their decisions on implications for online searching. This paper explores some of these implications with respect to unique and misleading terminology in tables of contents, Choice abstracts, and reviews from Computing reviews for thirty-six books on information and computer science chosen from the 1987 issues of Choice. It also discusses possible interacting functions in the search process served by these subject enhancements, assigned LCSH, and book title terminology
  10. Lepsky, K.: Automatische Indexierung zur Erschließung deutschsprachiger Dokumente (1999) 0.00 
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    Source
    nfd Information - Wissenschaft und Praxis. 50(1999) H.6, S.325-330
  11. Dwyer, J.: Bibliographic records enhancement : from the drawing board to the catalog screen (1991) 0.00 
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    Footnote
    Simultaneously published as Enhancing Access to Information: Designing Catalogs for the 21st Century
  12. Ikas, W.-V.; Litten, F.: World Wide Web und Catalogue Enrichment : Möglichkeiten des verbesserten Nachweises von mikroverfilmten Handschriften und Inkunabeln (2007) 0.00 
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    Date
    22. 5.2007 11:19:21
  13. Wormell, I.: Indizacion SAP para la exploracion del amplio contexto tematico de libros y para el accesso a entidades semanticos mas pequenas (1994) 0.00 
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    Abstract
    Describes an approach to indexing which seeks to eliminate the shortcoming of the representation of information in existing bibliographic catalogues: Subject Access Project (SAP) indexing which has been used successfully at Lund University and elsewhere. Existing catalogue records have been enriched with terms selected from lists of contents and indexes in books thus facilitating access to specific parts of documents and smaller semantic entites such as chapter titles, subject titles and data in graphic or tabulated form available in a wide range of publications
  14. Syracuse, R.O.; Poyer, R.K.: Enhancing access to the library's collections : a view from an academy health center library (1991) 0.00 
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    Footnote
    Simultaneously published as Enhancing Access to Information: Designing Catalogs for the 21st Century
  15. Hauer, M.: Collaborative catalog enrichment : 4. Benutzertreffen intelligentCAPTURE / dandelon.com (2007) 0.00 
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    Content
    "AGI - Information Management Consultants (www.agi-imc.de) hatte am 8. und 9. Mai 2007 zum vierten Mal Bibliotheken und Partner zum Erfahrungsaustausch nach Neustadt an der Weinstraße eingeladen. Die angereisten Teilnehmer betreiben bereits mittels intelligentCAPTURE die Produktion und über dandelon.com den Austausch und die Publikation (www.dandelon.com). Mittlerweile wird intelligentCAPTURE in Deutschland, Österreich, Liechtenstein, Italien und in der Schweiz eingesetzt. Die PDF-Dateien gelangen über einen Partner bis zur weltgrößten Bibliothek, der Library of Congress in Washington. In Deutschland ist der GBV - Gemeinsamer Bibliotheksverband in Göttingen (www.gbv.de) Partner von AGI und der größte Sekundärnutzer von dandelon.com. In dandelon.com sind derzeit über 220.000 Bücher suchbar, die Datenbank wächst täglich. Weitere 62.000 Titel werden nach einem Software-Update demnächst geladen; sie stammen aus Projekten mit der Staats-und Universitätsbibliothek Hamburg und der TIB Hannover. Vergleichbare Scanprojekte laufen derzeit in einer Spezialbibliothek in Hamburg, der UB Braunschweig und UB Mainz. AGI geht von 400 bis 500.000 Buchtiteln bis Ende 2007 aus. Erstmals sahen die Teilnehmer "intelligentCAPTURE mobile". Eine Lösung, welche die Scanner selbst zwischen die engsten Regale fährt und somit erheblich den Transportaufwand reduziert - der Scanner wird zum Buch transportiert, nicht Tonnen von Büchern zu Scannern. Gemeinsam mit dem führenden Anbieter von Bibliothekseinrichtungen Schulz Speyer (www.schulzspeyer.de) wurde intelligentCAPTURE mobil gemacht.
    Bis zu 530 Bücherinhaltsverzeichnisse wurden bisher von einer Person an einem Tag damit produziert. Rund 1.000 Bücher pro Tag ist die durchschnittliche Menge bei einem Scanteam mit drei Scanstationen. Digitalisiert wird immer nur der urheberrechtsfreie bzw. durch Lizenzierung zulässige Bereich. Neben Büchern werden auch Zeitschriften ausgewertet. So sind z.B. die Aufsätze aus der Zeitschrift "IWP - Information. Wissenschaft und Praxis" der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis (http://www.dgi-info.de) komplett digital - und einige auch mit MP3Hördateien ergänzt. Anwendung finden seit 2006 die Lösungen von AGI auch in der Suche von Parlamentsmaterialien, also in der öffentlichen Verwaltung - konkret dem wirtschaftlich erfolgreichsten Bundesland Österreichs, Vorarlberg. Diese Leistung wird als Dienstleistung der Vorarlberger Landesbibliothek (http://vlb-katalog.vorarlberg.de) erbracht (www.vorarlberg.at/landtag/landtag/parlamentarischematerialien/recherche.htm)
    Das Highlight unter den Referaten bei dieser Tagung waren die Ausführungen des Vordenkers Andreas Prokoph, Lead Architect - Search Technologies and Portal Server Development, vom deutschen IBM Entwicklungslabor. Er sprach über Information Retrieval. Mit über 200 Patenten, darunter auch seinen eigenen, liegt IBM in diesem Forschungsfeld weit vorne. Die IBM Suchmaschine OMNIFIND soll möglichst bald die Suchtechnik hinter dandelon.com ersetzen und den Suchraum auf Kataloge, Open Archives, Verlage, Hochschul-Server ausdehnen. Schon heute basieren intelligentCAPTURE und dandelon.com weitgehend auf IBM-Technologien, konkret Lotus Notes & Domino und Lotus Sametime (www.ibm.corn/ lotus/hannover), aber auch auf integrierten Modulen anderer international führender Technologiespezialisten."
    Source
    Information - Wissenschaft und Praxis. 58(2007) H.5, S.311
  16. Cousins, S.A.: Enhancing subject access to OPACs : controlled vocabulary vs. natural language (1992) 0.00 
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    Abstract
    Experimental evidence suggests that enhancing the subject content of OPAC records can improve retrieval performance. This is based on the use of natural language index terms derived from the table of contents and back-of-the-book index of documents. The research reported here investigates the alternative approach of translating these natural language terms into controlled vocabulary. Subject queries were collected by interview at the catalogue, and indexing of the queries demonstrated the impressive ability of PRECIS, and to a lesser extent LCSH, to represent users' information needs. DDC performed poorly in this respect. The assumption was made that an index language adequately specific to represent users' queries should be adequate to represent document contents. Searches were carried out on three test databases, and both natural language and PRECIS enhancement of MARC records increased the number of relevant documents found, with PRECIS showing the better performance. However, with weak stemming the advantage of PRECIS was lost. Consideration must also be given to the potential advantages of controlled vocabulary, over and above basic retrieval performance measures
  17. Pienaar, R.E.: Enhancement of subject access in online public access catalogues (OPACs) (1989) 0.00 
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    Source
    South African journal of library and information science. 57(1989) no.4, S.378-382
  18. Diodato, V.: Tables of contents and book indexes : how well do they match readers' descriptions of books? (1986) 0.00 
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    Abstract
    The author collected information about tables of content and index terms in 125 books borrowed by patrons in a medium-sized academic library. To learn how useful the term would be as subject terms in a library catalog, he determined which of these terms were the same as the words used by the patrons to describe the books. For 72,4% of the books assigned LCSH, the patron's term matched the LCheading. The patron's term matched the table of contents term for (1,3% of the books with tables of contents. If the catalog had included terms from the tables of contents and the indexes in addition to the LCSH, the success rate would have been 97,3%. One problem in using terms from books in a library catalog is that many books lack indexes and/or tables of context
  19. Kartus, E.: ¬A fully automated cataloguing workbench with enhanced subject access : the cataloguer's dream or nightmare? (1993) 0.00 
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    Abstract
    Describes the Intelligent Literature Search Assistant (ILSA) which demonstrates the possibilities of a fully automated cataloguing workbench in an object orientated environment. Although developed with OPAC users in mind, it can be very useful to cataloguers in aiding both classification and subject heading access. Also describes work done at the University of Strathclyde in the area of machine learning and knowledge based systems, the Structured Information Management: Processing and Retrieval project (SIMPR). Advocates the use of uncontrolled vocabulary headings in conjunction with systems like ILSA, a layered approach rather than direct first point access, in order to make subject cataloguing easier and more relevant and the subject catalogue more useful to others
  20. Großgarten, A.: ¬Das 180T-Projekt in Köln oder wie verarbeite ich 180.000 Bücher in vier Monaten : Eine erfolgreiche Kooperation des hbz, der USB Köln und der ZB MED (2005) 0.00 
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    Source
    Information - Wissenschaft und Praxis. 56(2005) H.8, S.444-456

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