-
Mas, S.; Marleau, Y.: Proposition of a faceted classification model to support corporate information organization and digital records management (2009)
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- Date
- 29. 8.2009 21:15:48
- 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.
-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
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- Content
- 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.
- Date
- 8. 1.2013 10:22:32
-
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.
-
MacLennan, A.: Classification and the Internet (2000)
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- Date
- 27. 1.2002 19:29:20
- Theme
- Klassifikationssysteme im Online-Retrieval
Internet
-
Lin, Z.Y.: Classification practice and implications for subject directories of the Chinese language Web-based digital library (2000)
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- Source
- Journal of Internet cataloging. 3(2000) no.4, S.29-50
- Theme
- Internet
Klassifikationssysteme im Online-Retrieval
-
Bowman, J.H.: ¬The catalog as barrier to retrieval : Part 1: hyphens and ampersands in titles (2000)
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- Abstract
- An Internet survey of 38 different OPAC systems, at eighty different libraries, was undertaken to investigate the effect on retrieval of the presence of the hyphen or the ampersand in titles. Title and Keyword searches were performed. In Title search, 22 of the systems treat the hyphen as equivalent to a space, while in Keyword the number is 16. The other systems treat it in various different ways (even including the equivalent of NOT), which means that results of searching multiple catalogs are very inconsistent. The ampersand may be ignored, treated as a special character, or treated as "and," again with very inconsistent results. Various recommendations are made with a view to improving consistency of performance.
- Source
- Cataloging and classification quarterly. 29(2000) no.4, S.39-59
-
Hume, C.: Internet search engines and robots : what they are and how to use them (2000)
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- Abstract
- An overview of the Internet is provided. It describes what the Internet is, how and when it was started, and the four main functions it currently offers. It then focuses on the World Wide Web, and in particular robots and search engines. An overview is provided of both robots and search engines, with some examples and illustrations. It concludes with how to choose a search engine for a particular enquiry, gives some hints and tips for Internet searches, and emphasises that good retrieval is achieved not only by good search engines but also by responsible Web mastering which helps to disseminate effectively any Internet published material.
- Source
- Journal of Internet cataloging. 2(2000) nos.3/4, S.29-45
-
Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004)
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- Abstract
- After a fundamental examination of the phenomenon of time, this paper presents the history, authority, and structure of period subdivisions and chronological terms in the three subject heading languages LCSH (Library of Congress Subject Headings), RAMEAU (Répertoire d'Autorité Matière Encyclopédique et Alphabétique Unifié), and RSWK (Regeln für den Schlagwortkatalog). Their usefulness in online searching is demonstrated using the online catalogs of the Library of Congress, the Bibliothèque nationale de France, and the Deutsche Bibliothek and is compared to the search options in selected digital encyclopedias (Encyclopaedia Britannica, Encarta, Brockhaus-Enzyklopädie). The author develops a model for common time retrieval across all three online catalogs, outlines the conditions for that model (time period code, chronological code, and chronology authority file), and proposes a search interface.
- Date
- 10. 9.2000 17:38:22
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Alex, H.; Heiner-Freiling, M.: Melvil (2005)
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- Abstract
- Ab Januar 2006 wird Die Deutsche Bibliothek ein neues Webangebot mit dem Namen Melvil starten, das ein Ergebnis ihres Engagements für die DDC und das Projekt DDC Deutsch ist. Der angebotene Webservice basiert auf der Übersetzung der 22. Ausgabe der DDC, die im Oktober 2005 als Druckausgabe im K. G. Saur Verlag erscheint. Er bietet jedoch darüber hinausgehende Features, die den Klassifizierer bei seiner Arbeit unterstützen und erstmals eine verbale Recherche für Endnutzer über DDCerschlossene Titel ermöglichen. Der Webservice Melvil gliedert sich in drei Anwendungen: - MelvilClass, - MelvilSearch und - MelvilSoap.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Information digital : Wikipedia verlinkt mit DDB (2005)
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- Abstract
- Die freie Enzyklopädie »Wikipedia« ist mit dem Onlinekatalog Der Deutschen Bibliothek verbunden. Für Personen, die Autor oder Gegenstand von Publikationen sind, wurde der Wikipedia-Eintrag um einen Link erweitert. Mit einem Mausklick gelangen Benutzer zu den entsprechenden Veröffentlichungen im Katalog Der Deutschen Bibliothek.
- Content
- "Mit der Verbindung zu der beliebten Online-Enzyklopädie geht die Deutsche Bibliothek einen Schritt auf die Internetnutzer zu. Durch den direkten und vollständigen Nachweis der Veröffentlichungen zu der gesuchten Person bringt Die Deutsche Bibliothek ihre Kompetenz als nationale Archivbibliothek in die populäre Online-Enzyklopädie ein. Alle seit 1913 von oder über diese Person veröffentlichten und archivierten Werke werden angezeigt. »Mit der Verlinkung zwischen Wikipedia-Artikeln und dem Online-Katalog Der Deutschen Bibliothek verbinden wir eine Online-Enzyklopädie mit der klassischen Bibliothek. Wir werden in Zukunft verstärkt mit neuen Retrieval Tools bessere und schnellere Zugänge zu unseren Datenbeständen schaffen. Die Bibliothek geht aktiv auf Informationssuchende zu und bietet zur Fragestellung passende Katalogabfragen an. Diese Linie werden wir weiterverfolgen: Mit innovativen Werkzeugen neue Zugänge zu den Informationen der Bibliothek dort schaffen, wo Fragen gestellt werden«, sagte Elisabeth Niggemann, Generaldirektorin Der Deutschen Bibliothek. Die Kooperation ist im Rahmen der ersten internationalen Wikimedia-Konferenz im August in Frankfurt am Main vorgestellt worden. Möglich wurde sie, nachdem Wikipedia Anfang des Jahres alle biografischen Artikel mit strukturierten Metadaten versehen hat. Als nächste Erweiterung der Zusammenarbeit wird die Verlinkung auch aus dem Onlinekatalog Der Deutschen Bibliothek zu den Personeneinträgen in Wikipedia realisiert. Die Verbindung zwischen den beiden Systemen wird über die Personennamendatei hergestellt. In der kooperativ von allen deutschen und österreichischen Bibliotheksverbünden gepflegten Normdatei sind derzeit rund 2,6 Millionen Personen mit ihren Namensformen und zusätzlichen Angaben abgebildet. Die Normdaten werden zum Bindeglied zwischen Enzyklopädieeinträgen, Werken von und über die Person sowie weiteren unterschiedlichen Materialien zur Person."
-
Lim, E.: Southeast Asian subject gateways : an examination of their classification practices (2000)
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- Date
- 22. 6.2002 19:42:47
- Source
- International cataloguing and bibliographic control. 29(2000) no.3, S.45-48
- Theme
- Klassifikationssysteme im Online-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
-
Bargheer, M.: Quality control and evaluation of scientific Web resources (2003)
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- Abstract
- Wissenschaftliche Informationen im Internet gewinnen zunehmend an Bedeutung. Um sie als zuverlässige Ressourcen für die wissenschaftliche Arbeit zu erschließen, müssen sie auf ihre Qualität geprüft werden - eine Aufgabe, die vermehrt von wissenschaftlichen Bibliotheken über ihre Internetdienste wie Subject Gateways, Digitale oder Virtuelle Bibliotheken wahrgenommen wird. Der vorliegende Artikel bietet eine medientheoretische Diskussion zum wissenschaftlichen Informationsraum im Internet und den medienbedingten Auswirkungen auf die Inhalte sowie einen Überblick zur Entwicklung von Evaluationsansätzen für Internetressourcen. Die theoretischen Abhandlungen werden durch einen umfangreichen Serviceteil ergänzt, der detailliert Qualitätskriterien und den Evaluierungsprozess in einer Weise aufzeigt, welche die Anpassung an (fach-)spezifische Anforderungen ermöglicht.
- Date
- 22. 3.2008 13:43:38
- Source
- Bibliothek: Forschung und Praxis. 27(2003) H.3, S.153-169
-
Khan, M.S.; Khor, S.: Enhanced Web document retrieval using automatic query expansion (2004)
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- Abstract
- The ever growing popularity of the Internet as a source of information, coupled with the accompanying growth in the number of documents made available through the World Wide Web, is leading to an increasing demand for more efficient and accurate information retrieval tools. Numerous techniques have been proposed and tried for improving the effectiveness of searching the World Wide Web for documents relevant to a given topic of interest. The specification of appropriate keywords and phrases by the user is crucial for the successful execution of a query as measured by the relevance of documents retrieved. Lack of users' knowledge an the search topic and their changing information needs often make it difficult for them to find suitable keywords or phrases for a query. This results in searches that fail to cover all likely aspects of the topic of interest. We describe a scheme that attempts to remedy this situation by automatically expanding the user query through the analysis of initially retrieved documents. Experimental results to demonstrate the effectiveness of the query expansion scheure are presented.
- Source
- Journal of the American Society for Information Science and technology. 55(2004) no.1, S.29-40
- Theme
- Internet
Semantisches Umfeld in Indexierung u. Retrieval
-
Woldering, B.: ¬Die Europäische Digitale Bibliothek nimmt Gestalt an (2007)
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- Abstract
- Der Aufbau der Europäischen Digitalen Bibliothek wurde im Herbst 2007 auf soliden Grund gestellt: Mit der European Digital Library Foundation steht eine geschäftsfähige Organisation als Trägerin der Europäischen Digitalen Bibliothek zur Verfügung. Sie fungiert zunächst als Steuerungsgremium für das EU-finanzierte Projekt EDLnet und übernimmt sukzessive die Aufgaben, die für den Aufbau und die Weiterentwicklung der Europäischen Digitalen Bibliothek notwendig sind. Die Gründungsmitglieder sind zehn europäische Dachorganisationen aus den Bereichen Bibliothek, Archiv, audiovisuelle Sammlungen und Museen. Vorstandsmitglieder sind die Vorsitzende Elisabeth Niggemann (CENL) die Vize-Vorsitzende Martine de Boisdeffre (EURBICA), der Schatzmeister Edwin van Huis (FIAT) sowie Wim van Drimmelen, der Generaldirektor der Koninklijke Bibliotheek, der Nationalbibliothek der Niederlande, welche die Europäische Digitale Bibliothek hostet. Der Prototyp für die Europäische Digitale Bibliothek wird im Rahmen des EDLnet-Projekts entwickelt. Die erste Version des Prototyps wurde auf der internationalen Konferenz »One more step towards the European Digital Library« vorgestellt, die am 31. Januar und 1. Februar 2008 in der Deutschen Nationalbibliothek (DNB) in Frankfurt am Main stattfand. Die endgültige Version des Prototyps wird im November 2008 von der EU-Kommissarin für Informationsgesellschaft und Medien, Viviane Reding, in Paris vorgestellt werden. Dieser Prototyp wird direkten Zugang zu mindestens zwei Mio. digitalisierten Büchern, Fotografien, Karten, Tonaufzeichnungen, Filmaufnahmen und Archivalien aus Bibliotheken, Archiven, audiovisuellen Sammlungen und Museen Europas bieten.
- Content
- Darin u.a. "Interoperabilität als Kernstück - Technische und semantische Interoperabilität bilden somit das Kernstück für das Funktionieren der Europäischen Digitalen Bibliothek. Doch bevor Wege gefunden werden können, wie etwas funktionieren kann, muss zunächst einmal festgelegt werden, was funktionieren soll. Hierfür sind die Nutzeranforderungen das Maß aller Dinge, weshalb sich ein ganzes Arbeitspaket in EDLnet mit der Nutzersicht, den Nutzeranforderungen und der Nutzbarkeit der Europäischen Digitalen Bibliothek befasst, Anforderungen formuliert und diese im Arbeitspaket »Interoperabilität« umgesetzt werden. Für die Entscheidung, welche Inhalte wie präsentiert werden, sind jedoch nicht allein technische und semantische Fragestellungen zu klären, sondern auch ein Geschäftsmodell zu entwickeln, das festlegt, was die beteiligten Institutionen und Organisationen in welcher Form zu welchen Bedingungen zur Europäischen Digitalen Bibliothek beitragen. Auch das Geschäftsmodell wird Auswirkungen auf technische und semantische Interoperabilität haben und liefert die daraus abgeleiteten Anforderungen zur Umsetzung an das entsprechende Arbeitspaket. Im EDLnet-Projekt ist somit ein ständiger Arbeitskreislauf installiert, in welchem die Anforderungen an die Europäische Digitale Bibliothek formuliert, an das Interoperabilitäts-Arbeitspaket weitergegeben und dort umgesetzt werden. Diese Lösung wird wiederum an die Arbeitspakete »Nutzersicht« und »Geschäftsmodell« zurückgemeldet, getestet, kommentiert und für die Kommentare wiederum technische Lösungen gesucht. Dies ist eine Form des »rapid prototyping«, das hier zur Anwendung kommt, d. h. die Funktionalitäten werden schrittweise gemäß des Feedbacks der zukünftigen Nutzer sowie der Projektpartner erweitert und gleichzeitig wird der Prototyp stets lauffähig gehalten und bis zur Produktreife weiterentwickelt. Hierdurch verspricht man sich ein schnelles Ergebnis bei geringem Risiko einer Fehlentwicklung durch das ständige Feedback."
- Date
- 22. 2.2009 19:10:56
- Source
- Dialog mit Bibliotheken. 20(2008) H.1, S.29-31
-
Hilberer, T.: Beliebter Trampelpfad durchs Internet : Was Virtuelle Fachbibliotheken von der Düsseldorfer Virtuellen Bibliothek (DVB) lernen können (2006)
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- Abstract
- Die »Düsseldorfer Virtuelle Bibliothek« (DVB) war nicht nur die erste, sondern in den Neunzigerjahren des vergangenen Jahrhunderts auch die größte wissenschaftliche virtuelle Universalbibliothek im deutschsprachigen Internet. Die beim Aufbau und der Pflege gesammelten Erfahrungen könnten auch für die derzeit entstehenden Virtuellen Fachbibliotheken von Nutzen sein, wie Thomas Hilberer im folgenden Beitrag erklärt.
-
Chen, Z.; Wenyin, L.; Zhang, F.; Li, M.; Zhang, H.: Web mining for Web image retrieval (2001)
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- Abstract
- The popularity of digital images is rapidly increasing due to improving digital imaging technologies and convenient availability facilitated by the Internet. However, how to find user-intended images from the Internet is nontrivial. The main reason is that the Web images are usually not annotated using semantic descriptors. In this article, we present an effective approach to and a prototype system for image retrieval from the Internet using Web mining. The system can also serve as a Web image search engine. One of the key ideas in the approach is to extract the text information on the Web pages to semantically describe the images. The text description is then combined with other low-level image features in the image similarity assessment. Another main contribution of this work is that we apply data mining on the log of users' feedback to improve image retrieval performance in three aspects. First, the accuracy of the document space model of image representation obtained from the Web pages is improved by removing clutter and irrelevant text information. Second, to construct the user space model of users' representation of images, which is then combined with the document space model to eliminate mismatch between the page author's expression and the user's understanding and expectation. Third, to discover the relationship between low-level and high-level features, which is extremely useful for assigning the low-level features' weights in similarity assessment
- Date
- 29. 9.2001 17:32:09
- Theme
- Internet
-
Pika, J.: Universal Decimal Classification at the ETH-Bibliothek Zürich : a Swiss perspective (2007)
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- Source
- Extensions and corrections to the UDC. 29(2007), S.229-251
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Strötgen, R.: Treatment of semantic heterogeneity using meta-data extraction and query translation (2002)
0.03
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- Abstract
- The project CARMEN ("Content Analysis, Retrieval and Metadata: Effective Networking") aimed - among other goals - at improving the expansion of searches in bibliographic databases into Internet searches. We pursued a set of different approaches to the treatment of semantic heterogeneity (meta-data extraction, query translation using statistic relations and Cross-concordances). This paper describes the concepts and implementation of these approaches and the evaluation of the impact for the retrieval result.
- Source
- Gaining insight from research information (CRIS2002): Proceedings of the 6th International Conference an Current Research Information Systems, University of Kassel, August 29 - 31, 2002. Eds: W. Adamczak u. A. Nase
-
Wheatley, A.: Subject trees on the Internet : a new role for bibliographic classification? (2000)
0.03
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- Abstract
- Internet information retrieval is largely the preserve of search engines and the even more popular subject trees. Subject trees have adapted principles of conventional bibliographic classification for structuring hierarchic browsing interfaces, thus providing easily used pathways to their selected resources. This combination of browsing and selectivity is especially valuable to untrained users. For the forseeable future, it appears that subject trees will remain the Internet's only practicable use of classificatory methods for information retrieval
- Source
- Journal of Internet cataloging. 2(2000) nos.3/4, S.115-141
- Theme
- Internet
Klassifikationssysteme im Online-Retrieval
