Search (32 results, page 1 of 2)

  • × theme_ss:"Beziehungen verbale / systematische Erschließung"
  • × language_ss:"e"
  1. Bee, G.: CrissCross (2006) 0.03 
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    Content
    "»Simplify your life«, heißt einer der großen Sachbuchbestseller der letzten Jahre. Dessen Quintessenz: In einer zusehends komplexer werdenden Welt sind Vereinfachungen (über)lebensnotwendig. Dies gilt für alle Lebensbereiche, in besonderem Maße aber für die Suche nach Informationen. Um Bibliotheksbenutzer an die von ihnen gewünschte Literatur heranzuführen, kann seitens der Bibliotheken sicher noch einiges an Vereinfachungsleistung erbracht werden - insbesondere dann, wenn der Benutzer sich bei der Suche nicht mit den Beständen seines nationalen Bibliothekssystems begnügt, sondern die Möglichkeit nutzt, weltweit online zu recherchieren. Eine Suche unter Zuhilfenahme von Titelstichwörtern bereitet heute nur wenig Kopfzerbrechen, ist aber oft unbefriedigend für die sachliche Suche. Leider gestaltet sich der hier deutlich zielführende Rückgriff auf Sacherschließungsdaten in der Praxis erheblich schwieriger. Der Benutzer ist mit einer Vielzahl unterschiedlicher Erschließungssysteme konfrontiert, die vielfach unverbunden nebeneinander existieren. Da die Bestände der weitaus meisten Bibliotheken heterogen erschlossen sind, müsste der Benutzer alle Erschließungsverfahren kennen und nacheinander anwenden, um sicherzustellen, dass ihm keine Informationen verloren gehen.
    An diesem Punkt setzt das neue Projekt CrissCross an, das gemeinsam von der Deutschen Nationalbibliothek (DNB) und der Fachhochschule Köln betrieben und von der Deutschen Forschungsgemeinschaft (DFG) gefördert wird. CrissCross schafft Verbindungslinien zwischen einigen besonders verbreiteten und bewährten Erschließungsinstrumenten: Der deutschsprachigen Schlagwortnormdatei (SWD), den besonders im angloamerikanischen Raum verbreiteten Library of Congress Subject Headings (LCSH), der französischen Dokumentationssprache Répertoire d'autorité-matière encyclopédique et alphabétique unifié (Rameau) und der Dewey Decimal Classification (DDC) als dem international am meisten verbreiteten Klassifikationssystem. CrissCross kann dabei auf zwei wichtigen Vorgängerprojekten aufbauen. Hier ist zum einen das ebenfalls von DNB und der Fachhochschule Köln gemeinsam betriebene Vorgängerprojekt »DDC Deutsch« zu nennen. Bereits während dessen Laufzeit war deutlich geworden, wie vorteilhaft sich eine Anreicherung des DDC-Registers mit dem Schlagwortbestand der SWD auf die Klassifikationspraxis auswirken könnte. Genau dieser Schritt wird nun vollzogen, wobei sich die Projektarbeit auf die Sachschlagwörter konzentriert - kein kleines Unterfangen, beläuft sich doch die Zahl der zurzeit in der SWD befindlichen Datensätze mit dem Indikator s auf über 154.000.
    Ein weiteres Fundament sind die Vorarbeiten aus dem gemeinsam von DNB, der Schweizerischen Landesbibliothek und anderen Partnern betriebenen Projekt Multilingual Access to Subjects (MACS). Im Rahmen von MACS wurden in größerem Umfang LCSH und Rameau-Datensätze miteinander verknüpft; einigen der dabei entstandenen Schlagwortpärchen wurde dabei bereits ein SWD-Äquivalent zugeordnet. Dreierverbindungen dieses Typs, erweitert um DDC-Notationen, werden auch im Rahmen von CrissCross entstehen. Die unterschiedliche Strukturierung der einzelnen Schlagwortsprachen sorgt allerdings für eine Vielzahl von Problemen, die das Projektteam bewältigen muss. Durch die Verlinkung der Schlagwortsprachen und die Verknüpfung mit der DDC erstellt CrissCross ein multilinguales verbales Recherchevokabular. Ungewöhnlich und innovativ ist dabei vor allem die Verbindung von verbaler und klassifikatorischer Sacherschließung, die zu einer bedeutenden Erweiterung der Recherchemöglichkeiten führen wird. Dies wird vor allem dann der Fall sein, wenn in Onlineumgebungen nutzbare Hilfsmittel wie das von der DNB zurzeit entwickelte Normdatenrecherchetool zur Verfügung stehen. In naher Zukunft wird der Nutzer dann bei seiner Suche auf eine Vielzahl unterschiedlich erschlossener Werke stoßen, ohne dass ihm die im Hintergrund vollzogene Auswertung von Normdaten bewusst sein muss. Er braucht im Grunde genommen überhaupt kein Vorwissen über Sacherschließungsinstrumente mitzubringen. »Simplify your search«, könnte das Motto dieser Vorgehensweise lauten. Die Nutzerfreundlichkeit der Bibliotheken wird durch den Einsatz derartiger Instrumente eine deutliche Steigerung erfahren. CrissCross wird seinen Teil dazu beitragen."
    Source
    Dialog mit Bibliotheken. 18(2006) H.2, S.23-24
  2. Thesaurofacet: a thesaurus and faceted classification for engineering and related subjects (1969) 0.01 
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    BK
    33.00 Physik: Allgemeines
    Classification
    33.00 Physik: Allgemeines
    Pages
    xxv, 491 S
  3. Karg, H.: Mapping Dewey and subject authorities : CrissCross (2007) 0.00 
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    Content
    Vortrag anläasslich des Workshops: "Extending the multilingual capacity of The European Library in the EDL project Stockholm, Swedish National Library, 22-23 November 2007".
  4. Vickery, B.C.: Classificatory principles in natural language indexing systems (1976) 0.00 
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    Pages
    S.119-141
    Source
    Classification in the 1970s: a second look. Rev. ed. Ed.: A. Maltby
  5. Austin, D.: ¬The CRG research into a freely faceted scheme (1976) 0.00 
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    Pages
    S.158-194
    Source
    Classification in the 1970s. Rev. ed
  6. Unesco thesaurus : a structured list of descriptors for indexing and retrieving literature in the fields of education, science, social and human science, culture and communication and information (1995) 0.00 
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    Footnote
    Rez. in: Indexer 20(1996) no.2, S.108 (A. McCarthy); Journal of librarianship and information science 29(1997) no.3, S.165-166 (A. Gilchrist)
    Pages
    XXXIX,705 S
  7. Wilson, T.D.: ¬The work of the British Classification Research Group (1972) 0.00 
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    Pages
    S.62-72
    Series
    Contributions in librarianship and information science; 3
    Source
    Subject retrieval in the seventies: new directions. Proc. of an int. symp. ... College Park, 14.-15.5.1971. Ed.: H.H. Wellisch u.a
  8. Green, R.: Making visible hidden relationships in the Dewey Decimal Classification : how relative index terms relate to DDC classes (2008) 0.00 
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    Content
    Relative Index (RI) terms in the Dewey Decimal Classification (DDC) system correspond to concepts that either approximate the whole of the class they index or that are in standing room there. DDC conventions and shallow natural language processing are used to determine automatically whether specific RI terms approximate the whole of or are in standing room in the classes they index. Approximately three-quarters of all RI terms are processed by the techniques described.
    Pages
    S.8-14
    Series
    Advances in knowledge organization; vol.11
    Source
    Culture and identity in knowledge organization: Proceedings of the Tenth International ISKO Conference 5-8 August 2008, Montreal, Canada. Ed. by Clément Arsenault and Joseph T. Tennis
  9. Frâncu, V.: Harmonizing a universal classification system with an interdisciplinary multilingual thesaurus : advantages and limitations (2000) 0.00 
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    Abstract
    The case under consideration is a project of building an interdisciplinary multilingual thesaurus (Romanian-English-French) starting from a list of indexing terms based on an abridged version of the Universal Decimal Classification (UDC). The resulting thesaurus is intended for public libraries for both indexing and searching purposes in bibliographic databases covering a wide range of topics but with a fairly low level of specificity. The problems encountered in such an approach fall into two groups: 1) concordance or compatibility problems in terms of the indexing languages considered (between a classification system and a thesaurus); 2) equivalence and, hence, translatability problems in terms of the natural languages involved. Additionally, the question of ambiguity given the co-occurrence of terms in more than one class, will be discussed with reference to homographs and polysemantic words. In a thesaurus with such a wide coverage yet with a low specificity level, the method adopted in the thesaurus construction was to provide as many lead-in terms as possible and post them up to the closest in meaning broader term in order to improve the recall ratio
    Pages
    S.200-205
    Series
    Advances in knowledge organization; vol.7
    Source
    Dynamism and stability in knowledge organization: Proceedings of the 6th International ISKO-Conference, 10-13 July 2000, Toronto, Canada. Ed.: C. Beghtol et al
  10. Root thesaurus. Pt.1.2 (1985) 0.00 
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    Date
    18. 5.2007 14:22:43
  11. Austin, D.: Citation order and linguistic structure (1976) 0.00 
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    Pages
    S.19-46
    Source
    The variety of librarianship. Essays in honor of J. W. Metcalfe. Ed. by W. Boyd Rayward
  12. Aitchison, J.: Bliss and the thesaurus : the bibliographic classification of H.E. Bliss as a source of thesaurus terms and structure (1986) 0.00 
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    Footnote
    Ähnlich auch in: Journal of documentation 42(1986) S.160-181
    Pages
    S.106-131
  13. Scott, D.S.: Subject classification and natural-language processing for retrieval in large databases (1989) 0.00 
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    Abstract
    New forms of man-machine interaction are becoming available that have great power for the delivery of information. But the scales of speed and capacity on which the computing machines operate demand new thoughts as to how information can be stored and retrieved. The objective of the discussion in this paper is to argue for a combination of natural-language processing and subject classification to be able to meet the demands
    Pages
    S.65-74
    Source
    Classification theory in the computer age: conversations across the disciplines. Proc. from the Conf. 18.-19.11.1988, Albany, NY
  14. Raghavan, K.S.: ¬The general theory of classification as the basis for structuring of subject headings (1985(?)) 0.00 
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    Abstract
    Defines the basic functions of surrogate files in information retrieval. Exemplifies the categories enunciated in the general theory of classification developed in India. Defines the principles for structuring the concepts. Formulates set of general postulates pertaining to the structure of compound subjects. On the basis of these, outlines a procedure for structuring of subject headings. Demonstrates the application of procedure through examples
    Pages
    S.24-48
  15. Frâncu, V.: ¬A universal classification system going through changes (2001) 0.00 
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    Abstract
    In the early 1990s, indexing with classification codes from the Universal Decimal Classification (UDC) in an academic library, going from traditional to automated routines in any and all its activities, suddenly proved insufficient. Under the circumstances of online searching, the possibilities offered by the new OPAC looked much more attractive to indexers and searchers alike. Therefore, a quick shift to indexing with UDC and keywords instead of UDC numbers alone was made. Currency, precision and, more importantly, user-friendliness were strong advantages offered by keyword indexing and searching. But the larger the dictionary of keywords, the more problematic the consequences an information scattering, given the lack of control an terms. The present paper describes the advantages of the UDC in indexing by presenting some of the devices it is provided with: subdivision by analogy, common and special auxiliaries, use of synthesis, and use of connecting symbols. The solution of indexing with both UDC notation and words from a thesaurus based an UDC was prompted by some other characteristics of the schedules: a semi-faceted classification system, hierarchical organisation, richness in terminology and consistency and control of notation. The methodology used in building the thesaurus is conceived according to the international standards (ISO 2788 and 5964) to which some principles have been added, giving the specific approach of harmonising a classification structure with that of a thesaurus. Compatibility and translatability issues are also considered and some problems arising from them are treated in detail. Most of the problems discussed are illustrated with examples.
    Pages
    S.64-71
    Source
    Advances in classification research, vol.10: proceedings of the 10th ASIS SIG/CR Classification Research Workshop. Ed.: Albrechtsen, H. u. J.E. Mai
  16. Himanka, J.; Kautto, V.: Translation of the Finnish abridged edition of UDC into general Finnish subject headings (1992) 0.00 
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    Abstract
    Examines a method of converting assigned UDC numbers into subject headings. The method consists of 2 phases: a dictionary is created that maps UDC numbers to subject headings; and this dictionary is then mechanically applied to convert the bibliographic databases. Tests 15 different UDC classes and records translation success and problems encountered. Closely examines problems encountered in each part and describes 3 main types of UDC classes: the synthetic; the shallow enumerative; and the deep enumerative. Findings show that the time spent in the first phase is tolerable. Considers the initial question of translatability of the whole UDC in the light of the results
    Source
    International classification. 19(1992) no.3, S.131-134
  17. Garcia-Marco, F.-J.: ¬The interaction between the systematic and alphabetical approaches to knowledge organization and its subjacent mechanisms : a long-term primary wave? (2016) 0.00 
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    Pages
    S.105-115
    Series
    Advances in knowledge organization; vol.15
    Source
    Knowledge organization for a sustainable world: challenges and perspectives for cultural, scientific, and technological sharing in a connected society : proceedings of the Fourteenth International ISKO Conference 27-29 September 2016, Rio de Janeiro, Brazil / organized by International Society for Knowledge Organization (ISKO), ISKO-Brazil, São Paulo State University ; edited by José Augusto Chaves Guimarães, Suellen Oliveira Milani, Vera Dodebei
  18. Francu, V.: ¬The impact of specificity on the retrieval power of a UDC-based multilingual thesaurus (2003) 0.00 
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    Abstract
    The article describes the research done over a bibliographic database in order to show the impact the specificity of the knowledge organising tools may have on information retrieval (IR). For this purpose two multilingual Universal Decimal Classification (UDC) based thesauri having different degrees of specificity are considered. Issues of harmonising a classificatory structure with a thesaurus structure are introduced, and significant aspects of information retrieval in a multilingual environment are examined in an extensive manner. Aspects of complementarity are discussed with particular emphasis on the real impact produced on IR by alternative search facilities. Finally, a number of conclusions are formulated as they arise from the study.
    Content
    Beitrag eines Themenheftes "Knowledge organization and classification in international information retrieval"
    Source
    Cataloging and classification quarterly. 37(2003) nos.1/2, S.49-64
  19. Tudhope, D.; Binding, C.; Blocks, D.; Cuncliffe, D.: Representation and retrieval in faceted systems (2003) 0.00 
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    Abstract
    This paper discusses two inter-related themes: the retrieval potential of faceted thesauri and XML representations of fundamental facets. Initial findings are discussed from the ongoing 'FACET' project, in collaboration with the National Museum of Science and Industry. The work discussed seeks to take advantage of the structure afforded by faceted systems for multi-term queries and flexible matching, focusing in this paper an the Art and Architecture Thesaurus. A multi-term matching function yields ranked results with partial matches via semantic term expansion, based an a measure of distance over the semantic index space formed by thesaurus relationships. Our intention is to drive the system from general representations and a common query structure and interface. To this end, we are developing an XML representation based an work by the Classification Research Group an fundamental facets or categories. The XML representation maps categories to particular thesauri and hierarchies. The system interface, which is configured by the mapping, incorporates a thesaurus browser with navigation history together with a term search facility and drag and drop query builder.
    Pages
    S.191-197
    Series
    Advances in knowledge organization; vol.8
    Source
    Challenges in knowledge representation and organization for the 21st century: Integration of knowledge across boundaries. Proceedings of the 7th ISKO International Conference Granada, Spain, July 10-13, 2002. Ed.: M. López-Huertas
  20. Tudhope, D.; Binding, C.; Blocks, D.; Cunliffe, D.: Compound descriptors in context : a matching function for classifications and thesauri (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 paper discusses a matching function for compound descriptors, or multi-concept subject headings, that does not rely an 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 an a measure of semantic closeness between terms, which has the potential to help with recall problems. The work reported is part of the ongoing FACET project in collaboration with the National Museum of Science and Industry and its collections database. The architecture of the prototype system and its Interface are outlined. The matching problem for compound descriptors is reviewed and the FACET implementation described. Results are discussed from scenarios using the faceted Getty Art and Architecture Thesaurus. We argue that automatic traversal of thesaurus relationships can augment the user's browsing possibilities. The techniques can be applied both to unstructured multi-concept subject headings and potentially to more syntactically structured strings. The notion of a focus term is used by the matching function to model AAT modified descriptors (noun phrases). The relevance of the approach to precoordinated indexing and matching faceted strings is discussed.
    Pages
    S.84-93
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval

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