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Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
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- Content
- Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
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Popper, K.R.: Three worlds : the Tanner lecture on human values. Deliverd at the University of Michigan, April 7, 1978 (1978)
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Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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- Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
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Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005)
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- Content
- Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
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Mas, S.; Marleau, Y.: Proposition of a faceted classification model to support corporate information organization and digital records management (2009)
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- Footnote
- Vgl.: http://ieeexplore.ieee.org/Xplore/login.jsp?reload=true&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4755313%2F4755314%2F04755480.pdf%3Farnumber%3D4755480&authDecision=-203.
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Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019)
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- Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
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Noever, D.; Ciolino, M.: ¬The Turing deception (2022)
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- Abstract
- Die diesjährige Öffentliche Sitzung der AG Dezimalklassifikationen fand am 23.7.02 im Rahmen der 26. Jahrestagung der Gesellschaft für Klassifikation in Mannheim statt. Das Programm bot ein breites Spektrum der klassifikatorischen Sacherschließung. In ihrem Vortrag unter dem Thema "Aktuelle Anwendungen und Entwicklungen der DDC" berichtete Frau Esther Scheven (DDB Frankfurt) über die Projekte "RENARDUS" und "DDC Deutsch". Das EU-Projekt RENARDUS (http://www.renardus.org) ist ein Recherchesystem für Internet-Fachinformationsführer mit einer gemeinsamen Suchoberfläche, in dem die DDC als CrossBrowse-Instrument eingesetzt wird. Die RENARDUS-Partner haben jeweils eine Konkordanztabelle von ihrer lokalen Klassifikation zur DDC erstellt. Das Klassifikationssystem DDC wurde deshalb bevorzugt, weil es online verfügbar ist, in verschiedene europäische Sprachen übersetzt wurde, einen weltweiten Anwenderkreis habe und zum Cross-Browsen besser geeignet sei als das Klassifikationssystem UDC. Anhand von geographischen Schlagwörtern wurde untersucht, inwieweit DDC-Notationen die Interoperabilität der Erschließung mit Schlagwörtern verschiedener Gateways mit unterschiedlichen Sprachen verbessern. Die DDC wird als Suchelement im Geographischen Index benutzt. Zum Projekt "DDC Deutsch" (http://www.ddb.de/professionell/ ddc info.htm) gab Frau Scheven einen kurzen Überblick über die wichtigsten Tätigkeiten und Entwicklungen. Dazu gehören die Übersetzung der 22. Auflage der DDC, die Überarbeitung der Table 2 für Deutschland und Österreich, die Überarbeitung der Sachgebiete Geschichte Deutschland, Geschichte Österreich, Parteiensysteme Deutschland. Nach Abschluß der Arbeiten wird ab 2005 in der Deutschen Nationalbibliographie (Reihe A, B und H) die DDC als Klassifikationssystem für wissenschaftliche relevante bzw. international wichtige Publikationen verwendet. Desweiteren ist vorgesehen, Schlagwörter der Schlagwortnormdatei (SWD) mit DDCNotationen zu verknüpfen. Herr Dr. Holger Flachmann (ULB Münster) stellte in seinem Vortrag "Digitale Reproduktion systematischer Zettelkataloge: Praxis, Gewinn und Grenzen am Beispiel des UDK-Kataloges der ULB Münster" ein interessantes und nachahmenswertes Projekt vor. In der ULB Münster wurde der bis 1990 nach UDK geführte Systematische Katalog (1,4 Millionen Katalogkarten mit 80 000 Systemstellen) als Imagekatalog konvertiert. Die elektronisch erfassten Systemstellen (UDK-Notationen) sind recherchierbar und mit den dazugehörigen Titeln verknüpft, die als digitale Bilder der Katalogzettel gespeichert sind. Ebenso ist die Suche mit Stichwörtern möglich.
Das Recherchesystem bietet eine Übersicht der Fachgebiete nach UDK, ein Register der Fächer (z.B. Register A-Z Wirtschaftswissenschaften), eine alphabetische Auflistung der Fächer und die systematische Gliederung der Fachgebiete mit Anzeige der Anzahl der Titelnachweise. Der von der Firma Mikro Univers GmbH Berlin erstellte digitalisierte Katalog wurde ab 1.8.02 frei geschaltet (http://altkataloge.uni-muenster.de/de/index sys.htm). Das von der ULB Münster realisierte Projekt könnte für andere Universitätsbibliotheken Anregung sein, konventionelle Systematische Zettelkataloge, die vor allem ältere wissenschaftliche Literatur nachweisen und erfahrungsgemäß in dieser Form wenig genutzt werden, in digitalisierter Form einem über die Grenzen der jeweiligen Universitätsbibliothek erweiterten Nutzerkreis zur Verfügung zu stellen. Herr Dr. Jiri Pika (ETH Zürich) referierte in seinem Vortrag "Anwendung der UDK in NEBIS in der Schweiz: ein Ausblick" über die seit etwa 20 Jahren praktizierte inhaltliche Erschließung von Dokumenten nach UDK im neuen Bibliothekssystem NEBIS (Netzwerk von Bibliotheken und Informationsstellen in der Schweiz http://www.nebis.ch/index.html), das das Bibliothekssystem ETHICS ablöste. Wie im System ETHICS beruht die Abfrage auf Deskriptoren in drei Sprachen (deutsch, englisch, französisch) und einer Anzahl weiterer Begriffe (Synonyme, Akronyme), womit ein benutzerfreundlicher den Gegebenheiten der multilingualen Schweiz angepasster Einstieg in die Recherche ermöglicht wird. Hinter den Deskriptoren steht eine einzige DK-Zahl, die im Hintergrund die mit ihr verknüpften Titel zusammenführt. Das von Fachreferenten gepflegte Sachregister beinhaltet etwa 63 513 Grundbegriffe (Stand 27.3.2002) mit einer DK-Zahl, die Anzahl der Zusatzbegriffe beträgt das 5 - 8fache. Die Vorzüge des Systems bestehen darin, dass unter Verwendung von Deskriptoren bei der Recherche der Zugriff sowohl auf gedruckte als auch auf elektronische Medien (etwa 2 Millionen Dokumente) möglich ist, ohne dass Kenntnisse des Klassifikationssystems erforderlich sind. Mit der Umstellung von ETHICS auf NEBIS im Jahre 1999 wurde eine neue Benutzeroberfläche angeboten und eine wesentliche Verkürzung der Antwortzeiten erreicht. Zum Anwenderkreis gehören etwa 60 Bibliotheken von Hochschulen, Fachhochschulen und Forschungsanstalten aus allen Regionen der Schweiz, z.B. ETH Zürich, Ecole Polytechnique Federale de Lausanne, weitere Schweizer Verbundbibliotheken, sowie in der Suchmaschine GERHARD (German Harvest Automated Retrieval Directory http://www.gerhard.de/gerold/owa/gerhard.create_ Index html?form-language=99). Der im Programm ausgewiesene Vortrag von Herrn Dr. Bernd Lorenz (München) zum Thema "Konkordanz RVK (Regensburger Verbundklassifikation) - DDC (Dewey Decimal Classification): Notwendigkeit und Vorüberlegungen" wurde vertretungsweise von Herrn Dr. Hans-Joachim Hermes (Chemnitz) übernommen. Bereits seit Beginn der Überlegungen, die DDC in der Deutschen Nationalbibliographie als Klassifikationssystem zu verwenden, werden auch Vorstellungen über eine Konkordanz zwischen den beiden Klassifikationssystemen RVK und DDC geäußert. Die geplante Konkordanz wird die Nutzung beider Klassifikationssysteme vergrößern. In der Darstellung wurden Probleme auf der sprachlichterminologischen Ebene, die bei den Benennungen der Notationen sichtbar werden, aufgezeigt. Nach den Fachvorträgen fand die turnusmäßige Neuwahl des Leiters der AG Dezimalklassifikationen statt. Zum neuen Vorsitzenden wurde Herr Dr. Bernd Lorenz (Bayerische Beamtenfachhochschule München) gewählt.
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Jahns, Y.; Trummer, M.: Sacherschließung - Informationsdienstleistung nach Maß : Kann Heterogenität beherrscht werden? (2004)
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- Content
- Dieses DDC-Tool ermöglicht den Zugriff auf lokale, mit DDC-erschlossene Titeldaten. Für einige bereits übersetzte DDC-Klassen kann mithilfe eines Browsers gearbeitet werden. Auch die gezielte verbale Suche nach DDC-Elementen ist möglich. Die Frage nach Aspekten, wie z. B. geografischen, soll durch getrennte Ablage der Notationselemente in den Titeldatensätzen ermöglicht werden. Schließlich lassen sich künftig auch integrierte Suchen über DDC und SWD oder andere Erschließungssysteme denken, um Literatur zu einem Thema zu finden. Das von Lars Svensson vorgestellte Retrieval-Interface bietet eine zentrale Lösung: nicht für jeden lokalen OPAC müssen eigene Suchstrukturen entwickelt werden, um auf DDC-Daten zugreifen zu können. Wie Datenbestände mit verschiedenen Erschließungen unter einer Oberfläche zusammengeführt werden und dabei die DDC als Meta-Ebene genutzt wird, das ist heute schon im Subject Gateway Renardus sichtbar." Der Renardus-Broker ermöglicht das Cross-Browsen und Cross-Searchen über verteilte Internetquellen in Europa. Für die Navigation über die DDC mussten zunächst Crosswalks zwischen den lokalen Klassifikationsklassen und der DDC erstellt werden. Das an der Universitätsbibliothek Regensburg entwickelte Tool CarmenX wurde dazu von der Niedersächsischen Staats- und Universitätsbibliothek Göttingen weiterentwickelt und ermöglicht den Zugriff auf die ver schiedenen Klassifikationssysteme. Über diese Entwicklungen berichtete Dr. Friedrich Geißelmann, Universitäsbibliothek Regensburg. Er leitete das CARMEN-Teilprojekt »Grosskonkordanzen zwischen Thesauri und Klassifikationen«, in dem das Werkzeug CarmenX entstand. In diesem CARMEN-Arbeitspaket erfolgten sowohl grundlegende methodische Untersuchungen zu Crosskonkordanzen als auch prototypische Umsetzungen in den Fachgebieten Mathematik, Physik und Sozialwissenschaften. Ziel war es, bei Recherchen in verteilten Datenbanken mit unterschiedlichen Klassifikationen und Thesauri von einem vertrauten System auszugehen und in weitere wechseln zu können, ohne genaue Kenntnis von den Systemen haben zu müssen. So wurden z. B. im Bereich Crosskonkordanzen zwischen Allgemein- und Fachklassifikationen die RVK und die Mathematical Subject Classification (MSC) und Physics and Astronomy Classification Scheme (PACS) ausgewählt.
Katja Heyke, Universitäts- und Stadtbibliothek Köln, und Manfred Faden, Bibliothek des HWWA-Instituts für Wirtschaftsforschung Hamburg, stellten ähnliche Entwicklungen für den Fachbereich Wirtschaftswissenschaften vor. Hier wird eine Crosskonkordanz zwischen dem Standard Thesaurus Wirtschaft (STW) und dem Bereich Wirtschaft der SWD aufgebaut." Diese Datenbank soll den Zugriff auf die mit STW und SWD erschlossenen Bestände ermöglichen. Sie wird dazu weitergegeben an die virtuelle Fachbibliothek EconBiz und an den Gemeinsamen Bibliotheksverbund. Die Crosskonkordanz Wirtschaft bietet aber auch die Chance zur kooperativen Sacherschließung, denn sie eröffnet die Möglichkeit der gegenseitigen Übernahme von Sacherschließungsdaten zwischen den Partnern Die Deutsche Bibliothek, Universitäts- und Stadtbibliothek Köln, HWWA und Bibliothek des Instituts für Weltwirtschaft Kiel. Am Beispiel der Wirtschaftswissenschaften zeigt sich der Gewinn solcher KonkordanzProjekte für Indexierer und Benutzer. Der Austausch über die Erschließungsregeln und die systematische Analyse der Normdaten führen zur Bereinigung von fachlichen Schwachstellen und Inkonsistenzen in den Systemen. Die Thesauri werden insgesamt verbessert und sogar angenähert. Die Vortragsreihe schloss mit einem Projekt, das die Heterogenität der Daten aus dem Blickwinkel der Mehrsprachigkeit betrachtet. Martin Kunz, Deutsche Bibliothek Frankfurt am Main, informierte über das Projekt MACS (Multilingual Access to Subject Headings). MACS bietet einen mehrsprachigen Zugriff auf Bibliothekskataloge. Dazu wurde eine Verbindung zwischen den Schlagwortnormdateien LCSH, RAMEAU und SWD erarbeitet. Äquivalente Vorzugsbezeichnungen der Normdateien werden intellektuell nachgewiesen und als Link abgelegt. Das Projekt beschränkte sich zunächst auf die Bereiche Sport und Theater und widmet sich in einer nächsten Stufe den am häufigsten verwendeten Schlagwörtern. MACS geht davon aus, dass ein Benutzer in der Sprache seiner Wahl (Deutsch, Englisch, Französisch) eine Schlagwortsuche startet, und ermöglicht ihm, seine Suche auf die affilierten Datenbanken im Ausland auszudehnen. Martin Kunz plädierte für einen Integrationsansatz, der auf dem gegenseitigen Respekt vor der Terminologie der kooperierenden Partner beruht. Er sprach sich dafür aus, in solchen Vorhaben den Begriff der Thesaurus föderation anzuwenden, der die Autonomie der Thesauri unterstreicht.
Wie kann man den Suchenden einen einheitlichen Zugriff auf Inhalte bieten, ganz gleich, in welchem System und mit welcher Methode sie erschlossen sind? Diese Frage hat die Vortragsreihe in unterschiedlichen Ansätzen untersucht. Die bewährten Orientierungssysteme sind für den Zugriff der Benutzer auf verteilte und auch fachübergreifende Bestände nicht mehr ausreichend. Einheitliche und einfache Zugänge zu Informationen in der Onlinewelt erfordern die Integration der vorhandenen Klassifikationen und Thesauri. Solche Transferkomponenten können die verschiedenen Schalen der Inhaltserschließung - verschiedene Erschließungsqualitäten und -niveaus - zusammenführen. Sie helfen Konsistenzbrüche auszugleichen und unsere Erschließungsdaten optimal anzubieten."
-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
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- Date
- 30. 3.2001 13:32:22
- Theme
- Semantisches Umfeld in Indexierung u. Retrieval
-
Hawking, D.; Robertson, S.: On collection size and retrieval effectiveness (2003)
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- Date
- 14. 8.2005 14:22:22
- Source
- Information retrieval. 6(2003) no.1, S.99-150
-
Lundquist, C.; Frieder, O.; Holmes, D.O.; Grossman, D.: ¬A parallel relational database management system approach to relevance feedback in information retrieval (1999)
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- Date
- 17. 1.2000 12:22:18
-
Dimitroff, A.; Wolfram, D.: Searcher response in a hypertext-based bibliographic information retrieval system (1995)
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- Abstract
- This article examines searcher behavior and affective response to a hypertext-based bibliographic information retrieval system called HyperLynx for searchers with different search skills and backgrounds. Search times and number of nodes visited were recorded for five specified search queries, and views of the system were recorded for each searcher. No significant differences were found in search times or user satisfaction with the system, indicating that a hypertext-based approach to bibliographic retrieval could be appropriate for a variety of searcher experience levels
- Source
- Journal of the American Society for Information Science. 46(1995) no.1, S.22-29
-
Laegreid, J.A.: SIFT: a Norwegian information retrieval system (1993)
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- Abstract
- Describes SIFT (Search in Free Text) an information retrieval system originally developed for administering governmental documents in Norway but which is now being applied alsewhere. SIFT handles structured information well. A library system, SIFT-BIBL, is now available. SIFT's retrieval engine and search facilities are powerful. Its user interface is limited but being imporved. An application programmer interface has been released which will allow programmers to develop their own interface. A Windows-based- client-server version is now being beta tested
- Date
- 23. 1.1999 19:22:09
-
Saffady, W.: ¬The bibliographic utilities in 1993 : a survey of cataloging support and other services; Interactive Access System (1993)
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- Abstract
- Provides a comprehensive background to OCLC. Discusses equipment and communications, database characteristics, record retrieval, cataloguing support, output products, and other products and services
- Date
- 30.11.1995 20:53:22
- Object
- Interactive Access System
-
Mooers, C.: ¬The indexing language of an information retrieval system (1963)
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- Source
- Information retrieval today: papers presented at an Institute conducted by the Library School and the Cetre for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by. Wesley Simonton
-
Biebricher, N.; Fuhr, N.; Lustig, G.; Schwantner, M.; Knorz, G.: ¬The automatic indexing system AIR/PHYS : from research to application (1988)
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- Date
- 16. 8.1998 12:51:22
- Footnote
- Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.513-517.
- Source
- Proceedings of the 11th annual conference on research and development in information retrieval. Ed.: Y. Chiaramella
-
Bovey, J.D.: Event-based personal retrieval (1996)
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- Abstract
- People who work in a research, academic or business environemtn often have personal information collections which are large enough to need retrieval aids. A major difference between personal information retrieval and standard information retrieval is that the items to be retrieved are often associated with events in the searcher's life and ca be retrieved by their relationship of other events as well as by content. Describes the background to evenet based retrieval and describes a prototype graphical event based retrieval system, developed at Kent University, UK, employing the hive event browser
- Source
- Journal of information science. 22(1996) no.5, S.357-366
-
Huang, T.; Mehrotra, S.; Ramchandran, K.: Multimedia Access and Retrieval System (MARS) project (1997)
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- Abstract
- Reports results of the MARS project, conducted at Illinois University, to bring together researchers in the fields of computer vision, compression, information management and database systems with the goal of developing an effective multimedia database management system. Describes the first step, involving the design and implementation of an image retrieval system incorporating novel approaches to image segmentation, representation, browsing and information retrieval supported by the developed system. Points to future directions for the MARS project
- Date
- 22. 9.1997 19:16:05
- Source
- Digital image access and retrieval: Proceedings of the 1996 Clinic on Library Applications of Data Processing, 24-26 Mar 1996. Ed.: P.B. Heidorn u. B. Sandore
