Search (21 results, page 1 of 2)

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Abstract

The media centre at the City of Science and Industry, Paris, bases cataloguing practices on user habits, simulating searches which users have done to identify how access can be improved. In relation to the audiovisual viewer, which offers a selection of 3.500 films, this has led to including summaries and closer indexing, so that items can be retrieved by subject, not just by title as in the general catalogue. Economy of indexing can be justified as long as there is more information available from another resource. Analysis of failed searches has shown that wider subject indexing and integration of subject research and keywords would reduce noise. In the same way that physical layout and presentation of collections can help users, so should catalogue structure and organisation

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Theme

Konzeption und Anwendung des Prinzips Thesaurus

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Konzeption und Anwendung des Prinzips Thesaurus

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Abstract

Die Welt der Dokumentation ist in den letzten Jahren in Bewegung geraten. Neben den Aufgaben der traditionellen Erwerbung, der Erfassung und der Bewahrung der Dokumente sind neue Aktionsfelder auf der Bildfläche erschienen; die Auswertung, die Retrokonversion und die Verbunfkataloge, die Datenbankabfrage und die Abfragemöglichkeiten für Benutzer, die Konzeption der Informationssysteme sowie die Expertenberatung. Neue Berufsfelder sind enstanden: Informationsvermittler und -berater

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RSWK

Information und Dokumentation / Methode (GBV)

Subject

Information und Dokumentation / Methode (GBV)

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Abstract

However, this assumption does not hold in all cases, the needs of the user evolve over time and can move away from his previous interests stored in his profile. In other cases, the user's profile may be misused to extract or infer new information needs. This problem is much more accentuated with ambiguous queries. When multiple POIs linked to a search query are identified in the user's profile, the system is unable to select the relevant data from that profile to respond to that request. This has a direct impact on the quality of the results provided to this user. In order to overcome some of these limitations, in this research thesis, we have been interested in the development of techniques aimed mainly at improving the relevance of the results of current SRIs and facilitating the exploration of major collections of documents. To do this, we propose a solution based on a new concept and model of indexing and information retrieval called multi-spaces projection. This proposal is based on the exploitation of different categories of semantic and social information that enrich the universe of document representation and search queries in several dimensions of interpretations. The originality of this representation is to be able to distinguish between the different interpretations used for the description and the search for documents. This gives a better visibility on the results returned and helps to provide a greater flexibility of search and exploration, giving the user the ability to navigate one or more views of data that interest him the most. In addition, the proposed multidimensional representation universes for document description and search query interpretation help to improve the relevance of the user's results by providing a diversity of research / exploration that helps meet his diverse needs and those of other different users. This study exploits different aspects that are related to the personalized search and aims to solve the problems caused by the evolution of the information needs of the user. Thus, when the profile of this user is used by our system, a technique is proposed and used to identify the interests most representative of his current needs in his profile. This technique is based on the combination of three influential factors, including the contextual, frequency and temporal factor of the data. The ability of users to interact, exchange ideas and opinions, and form social networks on the Web, has led systems to focus on the types of interactions these users have at the level of interaction between them as well as their social roles in the system. This social information is discussed and integrated into this research work. The impact and how they are integrated into the IR process are studied to improve the relevance of the results.

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Theme

Konzeption und Anwendung des Prinzips Thesaurus

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Abstract

In Grenoble wurde um 1971 das Format MONOCLE als französische Adaption des USMARCII aufgestellt. Dieses wurde vom SiBiL-Verbund übernommen. MONOCLE wurde danach auch die Basis für das weiterentwickelte INTERMARC, das seinerseits ein Vorläufer von UNIMARC wurde. Die Ähnlichkeit mit USMARC ist recht stark, es gibt aber eine Reihe von abweichenden Feldern, vor allem sind die Indikatoren sehr unterschiedlich definiert. Immerhin hat die französische Orientierung auf USMARC dann um 1988 dazu geführt, daß die französischen Universitäten und die Bibliothèque Nationale sich zu einem Anschluß an OCLC entschließen konnten

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Theme

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BK

06.01 / Geschichte des Informations- und Dokumentationswesens

Classification

AN 93400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Klassifikation
06.01 / Geschichte des Informations- und Dokumentationswesens

RVK

AN 93400 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Grundlagen, Theorie / Klassifikation