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  • × language_ss:"e"
  • × theme_ss:"Beziehungen verbale / systematische Erschließung"
  1. Tudhope, D.; Binding, C.; Blocks, D.; Cunliffe, D.: FACET: thesaurus retrieval with semantic term expansion (2002) 0.00 
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    Abstract
    There are many advantages for Digital Libraries in indexing with classifications or thesauri, but some current disincentive in the lack of flexible retrieval tools that deal with compound descriptors. This demonstration of a research prototype illustrates a matching function for compound descriptors, or multi-concept subject headings, that does not rely on exact matching but incorporates term expansion via thesaurus semantic relationships to produce ranked results that take account of missing and partially matching terms. The matching function is based on a measure of semantic closeness between terms.The work is part of the EPSRC funded FACET project in collaboration with the UK National Museum of Science and Industry (NMSI) which includes the National Railway Museum. An export of NMSI's Collections Database is used as the dataset for the research. The J. Paul Getty Trust's Art and Architecture Thesaurus (AAT) is the main thesaurus in the project. The AAT is a widely used thesaurus (over 120,000 terms). Descriptors are organised in 7 facets representing separate conceptual classes of terms.The FACET application is a multi tiered architecture accessing a SQL Server database, with an OLE DB connection. The thesauri are stored as relational tables in the Server's database. However, a key component of the system is a parallel representation of the underlying semantic network as an in-memory structure of thesaurus concepts (corresponding to preferred terms). The structure models the hierarchical and associative interrelationships of thesaurus concepts via weighted poly-hierarchical links. Its primary purpose is real-time semantic expansion of query terms, achieved by a spreading activation semantic closeness algorithm. Queries with associated results are stored persistently using XML format data. A Visual Basic interface combines a thesaurus browser and an initial term search facility that takes into account equivalence relationships. Terms are dragged to a direct manipulation Query Builder which maintains the facet structure.
    Pages
    S.384
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Cochrane, P.A.: Subject access - free text and controlled : the case of Papua New Guinea (1985) 0.00 
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    Abstract
    The online catalogue can provide the user with efficient and effective access through a variety of access points. New interests in subject heading is indicated. Keyword access and free text searching are considered alternatice methods. An investigation is suggested into the symbiotic relationship between classification and subject heading
    Pages
    S.83-95
  3. Ranganathan, S.R.: Subject headings and facet analysis (1964) 0.00 
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    Abstract
    After establishing the terminology, shows how the choice of the name of the subject of a document and the rendering of the name in the heading of the specific subject entry can be got by facet analysis based on postulates and principles. After showing that subject headings constitute an artificial language, points out that using facet analysis for subject heading does not amount to using class number. Marks out the area for an objective statistical survey of sought heading for subject entry. Calls on Council for Library Resources Incorporated to provide for this project
    Source
    Journal of documentation. 20(1964), S.109-119
  4. Fugmann, R.: ¬An interactive classaurus on the PC (1990) 0.00 
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    Abstract
    Both classification systems and thesauri have their specific strengths and weaknesses. Through properly combining both approaches one can eliminate the latter and largely preserve the strenghts. 'Classauri' which originate in this well-known way are most effective if they are constructed and applied during computer-aided indexing. A special variety of classaurus is described which is characterized by the employment of simple bur highly effective conceptual and technical devices and by the renunciation of attempts to generate the wording of index entries algorithmically
    Source
    International classification. 17(1990) no.3/4, S.133-137
  5. Balikova, M.: Multilingual Subject Access to Catalogues of National Libraries (MSAC) : Czech Republic's collaboration with Slovakia, Slovenia, Croatia, Macedonia, Lithuania and Latvia (2005) 0.00 
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    Abstract
    Czech authority file of topical terms is intended to form a base for multilingual controlled vocabulary. The aim of the proposal is to provide users of online library catalogues and internet services of cooperating institutions with an indexing and retrieval tool which enables multilingual and cross-domain searching ("one-stop" seamless searching). The goal of the project is to establish a multilingual subject approach to catalogues of participating libraries (Czechia, Croatia, Latvia, Lithuania, Macedonia, Slovakia, and Slovenia). In practice this means that a user in any of these countries would enter a query in his local language and receive hits from all the catalogues. The initiative is complying with the main goals currently defined by IFLA for the activity of Indexing and Classification Section, it means: Changing Roles of Subject Access Tools (Berlin), Implementation and Adaptation of Global Tools for Subject Access to Local Needs (Buenos Aires), and Cataloguing and Subject Tools for Global Access: International Partnerships (Oslo).
    Content
    The aim of this initiative is to provide the users of online library catalogues and information gateways of cooperating libraries with a prototype for multilingual subject searching in online environment. Library collections of these libraries are large and without any doubt very valuable for researchers throughout Europe. What is needed is a standardized, authorized indexing and retrieval tool which would bring together all their catalogues and databases and enable multilingual subject searching. At the beginning of the project, a number of factors affecting subject indexing in current environment and cross-searching for subjects have been identified. These factors include - standardization of subject retrieval process and indexing and classification tools - subject retrieval methods - possibility of interoperability among different indexing and classification schemes - multilingualism issue - possibility to increase precision and recall trough Z39.50 protocol and its profiles and to apply authority control in subject retrieval process - need for cooperation
    Pages
    12 S
  6. Aitchison, J.: ¬A classification as a source for a thesaurus : the bibliographic classification of H.E. Bliss as a source of thesaurus terms and structure (1986) 0.00 
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    Abstract
    The second edition of the Bibliographic Classidication of H.E. Bliss (BC2), being prepared under the editorship of Jack Mills, Vanda Broughton and others, is a rich source of structure and terminology for thesauri covering different subject fields. The new edition employs facet analysis and is thesaurus-compatible. A number of facet-based thesauri have drawn upon Bliss for terms and relationships. In two of these thesauri the Bliss Classification was the source of both systematic and alphabetical displays. The DHSS-DATA thesaurus, published by the United Kingdom Department of Health and Social Security, provides controlled terms and Bliss class numbers for indexing and searching the DHSS-DATA database. The ECOT thesaurus (Educational courses and occupations thesaurus) prepared for the Department of Education and Science, uses the software sedigned for the British Standards Institution ROOT thesaurus to genearte an alphabetical display from the systematic display derived from the Bliss schedules. Problems, benefits, and future prospects of Bliss-based thesaurus construction are discussed
    Footnote
    Ähnlich auch in: Ranganathan's philosophy: assessment, impact and relevance
    Source
    Journal of documentation. 42(1986), S.160-181
  7. Panzer, M.: DDC in Germany : Recent Developments and Current Activities (2007) 0.00 
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    Content
    Vortrag auf dem ALA Midwinter Meeting im Januar 2007 in Seattle.
  8. Woldering, B.: Connecting with users : Europe and multilinguality (2006) 0.00 
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    Abstract
    This paper introduces to the new Internet service The European Library, provided by the Conference of European National Librarians (CENL), and gives an overview of activities in Europe for multilingual library services, developed and tested in various projects: TEL-ME-MOR, MACS (Multilingual Access to Subjects), MSAC (Multilingual Subject Access to Catalogues of National Libraries), Crisscross, and VIAF (Virtual International Authority File).
  9. Aitchison, J.: ¬The thesaurofacet. A multipurpose retrieval language tool (1970) 0.00 
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    Source
    Journal of documentation. 26(1970), S.187-203
  10. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social science, culture and communication (1977) 0.00 
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  11. Foskett, D.J.: Classification for a general index language: a review of recent research by the Classification Research Group (1970) 0.00 
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    Pages
    48 S
  12. Negrini, G.: CLASTHES: a thesaurofacet generator (1994) 0.00 
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    Source
    Library science with a slant to documentation. 31(1994) no.1, S.1-12

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