-
Lösse, M.; Svensson, L.: "Classification at a Crossroad" : Internationales UDC-Seminar 2009 in Den Haag, Niederlande (2010)
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- Abstract
- Am 29. und 30. Oktober 2009 fand in der Königlichen Bibliothek in Den Haag das zweite internationale UDC-Seminar zum Thema "Classification at a Crossroad" statt. Organisiert wurde diese Konferenz - wie auch die erste Konferenz dieser Art im Jahr 2007 - vom UDC-Konsortium (UDCC). Im Mittelpunkt der diesjährigen Veranstaltung stand die Erschließung des World Wide Web unter besserer Nutzung von Klassifikationen (im Besonderen natürlich der UDC), einschließlich benutzerfreundlicher Repräsentationen von Informationen und Wissen. Standards, neue Technologien und Dienste, semantische Suche und der multilinguale Zugriff spielten ebenfalls eine Rolle. 135 Teilnehmer aus 35 Ländern waren dazu nach Den Haag gekommen. Das Programm umfasste mit 22 Vorträgen aus 14 verschiedenen Ländern eine breite Palette, wobei Großbritannien mit fünf Beiträgen am stärksten vertreten war. Die Tagesschwerpunkte wurden an beiden Konferenztagen durch die Eröffnungsvorträge gesetzt, die dann in insgesamt sechs thematischen Sitzungen weiter vertieft wurden.
- Date
- 22. 1.2010 15:06:54
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Frâncu, V.; Sabo, C.-N.: Implementation of a UDC-based multilingual thesaurus in a library catalogue : the case of BiblioPhil (2010)
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- Abstract
- In order to enhance the use of Universal Decimal Classification (UDC) numbers in information retrieval, the authors have represented classification with multilingual thesaurus descriptors and implemented this solution in an automated way. The authors illustrate a solution implemented in a BiblioPhil library system. The standard formats used are UNIMARC for subject authority records (i.e. the UDC-based multilingual thesaurus) and MARC XML support for data transfer. The multilingual thesaurus was built according to existing standards, the constituent parts of the classification notations being used as the basis for search terms in the multilingual information retrieval. The verbal equivalents, descriptors and non-descriptors, are used to expand the number of concepts and are given in Romanian, English and French. This approach saves the time of the indexer and provides more user-friendly and easier access to the bibliographic information. The multilingual aspect of the thesaurus enhances information access for a greater number of online users
- Date
- 22. 7.2010 20:40:56
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Lardera, M.; Gnoli, C.; Rolandi, C.; Trzmielewski, M.: Developing SciGator, a DDC-based library browsing tool (2017)
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- Abstract
- Exploring collections by their subject matter is an important functionality for library users. We developed an online tool called SciGator in order to allow users to browse the Dewey Decimal Classification (DDC) classes used in different libraries at the University of Pavia and to perform different types of search in the OPAC. Besides navigation of DDC hierarchies, SciGator suggests "see-also" relationships with related classes and maps equivalent classes in local shelving schemes, thus allowing the expansion of search queries to include subjects contiguous to the initial one. We are developing new features, including the possibility to expand searches even more to national and international catalogues.
- Content
- Beitrag eines Special Issue: ISKO-Italy: 8' Incontro ISKO Italia, Università di Bologna, 22 maggio 2017, Bologna, Italia.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Kasprzik, A.: Implementierung eines Hierarchisierungsalgorithmus' für die Konstanzer Systematik : Projektbericht (2013)
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- Abstract
- Die in ihren Grundzügen hierarchisch angelegte Aufstellungssystematik der Bibliothek der Universität Konstanz ist im Laufe der Zeit durch zahlreiche nicht-hierarchische Strukturen ergänzt worden, so dass ein heterogenes Gebilde entstanden ist. Außerdem kam der Wunsch nach Austauschbarkeit der Konstanzer Klassifikation mit anderen bibliothekarischen Einrichtungen auf. Aus diesen Gründen soll die Systematik nun bereinigt werden. Dazu wird als zentrales Werkzeug ein Diagnosealgorithmus benötigt, welcher sichtbar macht, wie weit die aktuelle Systematik von einem vorher zu definierenden, möglichst baumförmigen Idealzustand entfernt ist. In diesem Projekt ist ein solcher Algorithmus entwickelt und implementiert worden.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Fujita, M.; Lopes, L.; Moreira, W.; Piovezan dos Santos, L.B.; Andrade e Cruz, M.C.; Rodrigues de Barros Ribas, R.: Construction and evaluation of hierarchical structures of indexing languages for online catalogs of libraries : an experience of the São Paulo State University (UNESP) (2018)
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- Abstract
- The construction and updating of indexing languages depend on the organization of their hierarchical structures in order to determine the classification of related terms and, above all, to allow a constant updating of vocabulary, a condition for knowledge evolution. The elaboration of an indexing language for online catalogs of libraries' networks is important considering the diversity and specificity of knowledge areas. From this perspective, the present paper reports on the work of a team of catalogers and researchers engaged in the construction of a hierarchical structure of an indexing language for an online catalog of a university library's network. The work on hierarchical structures began by defining the categories and subcategories that form the indexing language macrostructure by using the parameters of the Library of Congress Subject Headings , the National Library Terminology and the Vocabulary of the University of São Paulo Library's system. Throughout the stages of the elaboration process of the macrostructure, difficulties and improvements were observed and discussed. The results enabled the assessment of the hierarchical structures of the languages used in the organization of the superordinate and subordinate terms, which has contributed to the systematization of operational procedures contained in an indexing language manual for online catalogs of libraries.
- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Oh, K.E.; Joo, S.; Jeong, E.-J.: Online consumer health information organization : users' perspectives on faceted navigation (2015)
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- Abstract
- We investigate facets of online health information that are preferred, easy-to-use and useful in accessing online consumer health information from a user's perspective. In this study, the existing classification structure of 20 top ranked consumer health information websites in South Korea were analyzed, and nine facets that are used in organizing health information in those websites were identified. Based on the identified facets, an online survey, which asked participants' preferences for as well as perceived ease-of-use and usefulness of each facet in accessing online health information, was conducted. The analysis of the survey results showed that among the nine facets, the "diseases & conditions" and "body part" facets were most preferred, and perceived as easy-to-use and useful in accessing online health information. In contrast, "age," "gender," and "alternative medicine" facets were perceived as relatively less preferred, easy-to-use and useful. This research study has direct implications for organization and design of health information websites in that it suggests facets to include and avoid in organizing and providing access points to online health information.
- Theme
- Klassifikationssysteme im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Hanke, M.: Bibliothekarische Klassifikationssysteme im semantischen Web : zu Chancen und Problemen von Linked-data-Repräsentationen ausgewählter Klassifikationssysteme (2014)
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- Abstract
- Pflege und Anwendung von Klassifikationssystemen für Informationsressourcen sind traditionell eine Kernkompetenz von Bibliotheken. Diese Systeme sind häufig historisch gewachsen und die Veröffentlichung verschiedener Systeme ist in der Vergangenheit typischerweise durch gedruckte Regelwerke oder proprietäre Datenbanken erfolgt. Die Technologien des semantischen Web erlauben es, Klassifikationssysteme in einer standardisierten und maschinenlesbaren Weise zu repräsentieren, sowie als Linked (Open) Data für die Nachnutzung zugänglich zu machen. Anhand ausgewählter Beispiele von Klassifikationssystemen, die bereits als Linked (Open) Data publiziert wurden, werden in diesem Artikel zentrale semantische und technische Fragen erörtert, sowie mögliche Einsatzgebiete und Chancen dargestellt. So kann beispielsweise die für die Maschinenlesbarkeit erforderliche starke Strukturierung von Daten im semantischen Web zum besseren Verständnis der Klassifikationssysteme beitragen und möglicherweise positive Impulse für ihre Weiterentwicklung liefern. Für das semantische Web aufbereitete Repräsentationen von Klassifikationssystemen können unter anderem zur Kataloganreicherung oder für die anwendungsbezogene Erstellung von Konkordanzen zwischen verschiedenen Klassifikations- bzw. Begriffssystemen genutzt werden..
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Maibach, C.: ¬Die DDC auf neuen Wegen : verbale Sucheinstiege für klassifikatorisch erschlossene Titel (2014)
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- Abstract
- Die Dewey-Dezimalklassifikation (DDC) ist ein mächtiges Instrument der klassifikatorischen Inhaltserschließung. Immer mehr Bibliotheken im In- und Ausland erkennen den Nutzen der international am weitesten verbreiteten Universalklassifikation. Die Deutsche Nationalbibliothek (DNB) setzt die DDC seit 2006 für die inhaltliche Erschließung der Bibliografiereihen A, B und H ein. Seitdem wurden rund 800.000 Publikationen mit DDC-Notationen versehen. Der Nutzen von Klassifikationen ist unter Bibliothekar/innen unumstritten. Die Bibliotheksnutzer/innen hingegen wissen oft nicht, dass der Katalog ihrer Bibliothek auch eine systematische Recherche ermöglicht. Ihre Recherchestrategie ist meist verbal. Durch Internetsuchmaschinen wird diese Strategie noch bestärkt. Daher liegt es nahe, auch für die klassifikatorisch erschlossenen Titel einen verbalen Sucheinstieg zu schaffen. ie DDC enthält nicht nur die in vielen Klassifikationssystemen üblichen Registereinträge und Klassenbenennungen, sondern auch die im Rahmen des Projekts CrissCross in großem Umfang erstellten Verknüpfungen zu Schlagwörtern der Gemeinsamen Normdatei (GND), die für diesen Zweck ausgewertet werden können.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Effenberger, C.: ¬Ein semantisches Netz für die Suche mit der Dewey-Dezimalklassifikation : optimiertes Retrieval durch die Verwendung versionierter DDC-Klassen (2011)
0.06
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- Abstract
- Die Dewey-Dezimalklassifikation (DDC) wird weltweit für die Erschließung von Bibliotheksbeständen eingesetzt. Um immer auf dem aktuellen wissenschaftlichen Stand zu sein, wird die DDC regelmäßig aktualisiert. Hierdurch kann es zu Begriffsverschiebungen kommen und die Erschließung ähnlicher Titel weicht voneinander ab, wird also heterogen, was zu inkorrekten Treffermengen bei der Suche nach DDC-erschlossenen Dokumenten führen kann. Eine mögliche Lösung des Problems ist, jeder Version einer DDC-Klasse einen eindeutigen Identifier zuzuordnen und so die Klasse eindeutig identifizieren zu können, mit der ein Titel verknüpft ist. Mit Hilfe von RDF kann aus Titeldaten, Schlagwörtern der Schlagwortnormdatei und den versionierten DDC-Klassen ein semantisches Netzwerk modelliert werden und durch entsprechende Anfragen können genauere Suchergebnisse, unabhängig von Änderungen in der DDC, generiert werden. Die Untersuchungen erfolgten im Rahmen eines Werkvertrages mit der Deutschen Nationalbibliothek und wurden in ausgearbeiteter Form als Masterthesis eingereicht.
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Losee, R.M.: Improving collection browsing : small world networking and Gray code ordering (2017)
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- Theme
- Klassifikationssysteme im Online-Retrieval
Verbale Doksprachen im Online-Retrieval
-
Fagan, J.C.: Usability studies of faceted browsing : a literature review (2010)
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Rocha, R.; Cobo, A.: Automatización de procesos de categorización jerárquica documental en las organizaciones (2010)
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- Theme
- Klassifikationssysteme im Online-Retrieval
-
Wang, Z.; Khoo, C.S.G.; Chaudhry, A.S.: Evaluation of the navigation effectiveness of an organizational taxonomy built on a general classification scheme and domain thesauri (2014)
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- Theme
- Klassifikationssysteme im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Gnoli, C.; Pusterla, L.; Bendiscioli, A.; Recinella, C.: Classification for collections mapping and query expansion (2016)
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- Theme
- Klassifikationssysteme im Online-Retrieval
Semantisches Umfeld in Indexierung u. Retrieval
-
Slavic, A.: Classification revisited : a web of knowledge (2011)
0.04
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- Source
- Innovations in information retrieval: perspectives for theory and practice. Eds.: A. Foster, u. P. Rafferty
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Ménard, E.; Mas, S.; Alberts, I.: Faceted classification for museum artefacts : a methodology to support web site development of large cultural organizations (2010)
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- Theme
- Klassifikationssysteme im Online-Retrieval
