Search (149 results, page 1 of 8)

  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  1. Informatics 10: prospects for intelligent retrieval : Proc. of a conference jointly sponsored by Aslib, the Aslib Informatics Group and the Information Retrieval Specialist Group of the British Computer Society, King's College, Cambridge, 21.-23.3.1989 (1990) 0.09
    0.08689856 = product of:
      0.13034783 = sum of:
        0.08967216 = weight(_text_:retrieval in 2184) [ClassicSimilarity], result of:
          0.08967216 = score(doc=2184,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.5788671 = fieldWeight in 2184, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=2184)
        0.040675674 = product of:
          0.08135135 = sum of:
            0.08135135 = weight(_text_:conference in 2184) [ClassicSimilarity], result of:
              0.08135135 = score(doc=2184,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.41894025 = fieldWeight in 2184, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2184)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Theme
    Verbale Doksprachen im Online-Retrieval
  2. Rood, J.: Practical considerations in dealing with LCSH-mr (1991) 0.07
    0.07395834 = product of:
      0.110937506 = sum of:
        0.062126692 = weight(_text_:retrieval in 2457) [ClassicSimilarity], result of:
          0.062126692 = score(doc=2457,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.40105087 = fieldWeight in 2457, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=2457)
        0.04881081 = product of:
          0.09762162 = sum of:
            0.09762162 = weight(_text_:conference in 2457) [ClassicSimilarity], result of:
              0.09762162 = score(doc=2457,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.50272834 = fieldWeight in 2457, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2457)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  3. Mandel, C.A.: Multiple vocabularies in subject authority control (1991) 0.07
    0.07395834 = product of:
      0.110937506 = sum of:
        0.062126692 = weight(_text_:retrieval in 2460) [ClassicSimilarity], result of:
          0.062126692 = score(doc=2460,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.40105087 = fieldWeight in 2460, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.09375 = fieldNorm(doc=2460)
        0.04881081 = product of:
          0.09762162 = sum of:
            0.09762162 = weight(_text_:conference in 2460) [ClassicSimilarity], result of:
              0.09762162 = score(doc=2460,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.50272834 = fieldWeight in 2460, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.09375 = fieldNorm(doc=2460)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  4. Davies, R.: Thesaurus-aided searching in search and retrieval protocols (1996) 0.07
    0.06951885 = product of:
      0.10427827 = sum of:
        0.07173773 = weight(_text_:retrieval in 5169) [ClassicSimilarity], result of:
          0.07173773 = score(doc=5169,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.46309367 = fieldWeight in 5169, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=5169)
        0.032540537 = product of:
          0.065081075 = sum of:
            0.065081075 = weight(_text_:conference in 5169) [ClassicSimilarity], result of:
              0.065081075 = score(doc=5169,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.3351522 = fieldWeight in 5169, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5169)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Open system protocols for search and retrieval have not provided explicit ways in which to implement thesaurus-aided searching. A number of different approaches within the existing protocols, as well as a proposed service, are evaluated. A general approach to implementing thesaurus-aided searching, particularly during consultation of a thesaurus, requires an entirely new service, whose main features are described
    Source
    Knowledge organization and change: Proceedings of the Fourth International ISKO Conference, 15-18 July 1996, Library of Congress, Washington, DC. Ed.: R. Green
    Theme
    Verbale Doksprachen im Online-Retrieval
  5. Chan, L.M.: Functions of a subject authority file (1991) 0.06
    0.061631948 = product of:
      0.09244792 = sum of:
        0.051772244 = weight(_text_:retrieval in 2456) [ClassicSimilarity], result of:
          0.051772244 = score(doc=2456,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33420905 = fieldWeight in 2456, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=2456)
        0.040675674 = product of:
          0.08135135 = sum of:
            0.08135135 = weight(_text_:conference in 2456) [ClassicSimilarity], result of:
              0.08135135 = score(doc=2456,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.41894025 = fieldWeight in 2456, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2456)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  6. Garrison, W.A.: Practical considerations in using the machine-readable LCSH (1991) 0.06
    0.061631948 = product of:
      0.09244792 = sum of:
        0.051772244 = weight(_text_:retrieval in 2458) [ClassicSimilarity], result of:
          0.051772244 = score(doc=2458,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33420905 = fieldWeight in 2458, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=2458)
        0.040675674 = product of:
          0.08135135 = sum of:
            0.08135135 = weight(_text_:conference in 2458) [ClassicSimilarity], result of:
              0.08135135 = score(doc=2458,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.41894025 = fieldWeight in 2458, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2458)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  7. Bishoff, L.: Public access to the Library of Congress Subject Headings online (1991) 0.06
    0.061631948 = product of:
      0.09244792 = sum of:
        0.051772244 = weight(_text_:retrieval in 2459) [ClassicSimilarity], result of:
          0.051772244 = score(doc=2459,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33420905 = fieldWeight in 2459, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=2459)
        0.040675674 = product of:
          0.08135135 = sum of:
            0.08135135 = weight(_text_:conference in 2459) [ClassicSimilarity], result of:
              0.08135135 = score(doc=2459,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.41894025 = fieldWeight in 2459, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2459)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Subject authorities in the online environment: papers from a conference program held in San Francisco, 29.6.1987. Ed.: K.M. Drabenstott
    Theme
    Verbale Doksprachen im Online-Retrieval
  8. Keen, E.M.: Aspects of computer-based indexing languages (1991) 0.06
    0.060742766 = product of:
      0.09111415 = sum of:
        0.058573607 = weight(_text_:retrieval in 5072) [ClassicSimilarity], result of:
          0.058573607 = score(doc=5072,freq=4.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.37811437 = fieldWeight in 5072, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=5072)
        0.032540537 = product of:
          0.065081075 = sum of:
            0.065081075 = weight(_text_:conference in 5072) [ClassicSimilarity], result of:
              0.065081075 = score(doc=5072,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.3351522 = fieldWeight in 5072, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5072)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Comments on the relative rarity of research articles on theoretical aspects of subject indexing in computerised retrieval systems and the predominance of articles on software packages and hardware. Concludes that controlled indexing still has a future but points to major differences from the past
    Source
    Computers in libraries international 91. Proceedings of the 5th Annual Conference on Computers in Libraries, London, February 1991
    Theme
    Verbale Doksprachen im Online-Retrieval
  9. Bates, M.J.: How to use controlled vocabularies more effectively in online searching (1989) 0.05
    0.05314992 = product of:
      0.07972488 = sum of:
        0.051251903 = weight(_text_:retrieval in 2883) [ClassicSimilarity], result of:
          0.051251903 = score(doc=2883,freq=4.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33085006 = fieldWeight in 2883, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2883)
        0.028472973 = product of:
          0.056945946 = sum of:
            0.056945946 = weight(_text_:conference in 2883) [ClassicSimilarity], result of:
              0.056945946 = score(doc=2883,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.2932582 = fieldWeight in 2883, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2883)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Optimal retrieval in on-line searching can be achieved through combined use of both natural language and controlled vocabularies. However, there is a large variety of types of controlled vocabulary in data bases and often more than one in a single data base. Optimal use of these vocabularies requires understanding what types of languages are involved, and taking advantage of the particular mix of vocabularies in a given data base. Examples 4 major types of indexing and classification used in data bases and puts these 4 in the context of 3 other approaches to subject access. Discusses how to evaluate a new data base for various forms of subject access.
    Source
    Online '88. Proceedings of the Online Inc., Conference, New York, 11-12 October 1988
    Theme
    Verbale Doksprachen im Online-Retrieval
  10. Subject authorities in the online environment : papers from a conference program held in San Francisco, 29.6.1987 (1991) 0.05
    0.05229644 = product of:
      0.07844466 = sum of:
        0.043930206 = weight(_text_:retrieval in 2215) [ClassicSimilarity], result of:
          0.043930206 = score(doc=2215,freq=4.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.2835858 = fieldWeight in 2215, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=2215)
        0.034514453 = product of:
          0.06902891 = sum of:
            0.06902891 = weight(_text_:conference in 2215) [ClassicSimilarity], result of:
              0.06902891 = score(doc=2215,freq=4.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.35548258 = fieldWeight in 2215, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2215)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Footnote
    Rez. in: Canadian library journal 49(1992) S.166 (P. Nicholls): "Basically a collection of the proceedings of a program given at the ALA's 1987 annual conference, the original impetus for the session was to familarize bibliographic utilities, library systems staff, and integrated library system vendors with the recently-released machine-readable LCSH-mr so that they could "integrate this new tool into online bibliographic systems to provide the cataloging, thesaurus maintenance, file maintenance, and retrieval functions associated with subject authority work." These papers were writeen in 1986 and are all about LCSH on magnetic tape. Gads!
    Theme
    Verbale Doksprachen im Online-Retrieval
  11. O'Neill, E.T.; Bennett, R.; Kammerer, K.: Using authorities to improve subject searches (2012) 0.05
    0.052139133 = product of:
      0.0782087 = sum of:
        0.0538033 = weight(_text_:retrieval in 310) [ClassicSimilarity], result of:
          0.0538033 = score(doc=310,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.34732026 = fieldWeight in 310, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=310)
        0.024405405 = product of:
          0.04881081 = sum of:
            0.04881081 = weight(_text_:conference in 310) [ClassicSimilarity], result of:
              0.04881081 = score(doc=310,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.25136417 = fieldWeight in 310, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.046875 = fieldNorm(doc=310)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Authority files have played an important role in improving the quality of indexing and subject cataloging. Although authorities can significantly improve search by increasing the number of access points, they are rarely an integral part of the information retrieval process, particularly end-users searches. A retrieval prototype, searchFAST, was developed to test the feasibility of using an authority file as an index to bibliographic records. searchFAST uses FAST (Faceted Application of Subject Terminology) as an index to OCLC's WorldCat.org bibliographic database. The searchFAST methodology complements, rather than replaces, existing WorldCat.org access. The bibliographic file is searched indirectly; first the authority file is searched to identify appropriate subject headings, then the headings are used to retrieve the matching bibliographic records. The prototype demonstrates the effectiveness and practicality of using an authority file as an index. Searching the authority file leverages authority control work by increasing the number of access points while supporting a simple interface designed for end-users.
    Source
    Beyond libraries - subject metadata in the digital environment and semantic web. IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn
    Theme
    Verbale Doksprachen im Online-Retrieval
  12. 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) 0.05
    0.04974571 = product of:
      0.07461856 = sum of:
        0.0538033 = weight(_text_:retrieval in 131) [ClassicSimilarity], result of:
          0.0538033 = score(doc=131,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.34732026 = fieldWeight in 131, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=131)
        0.020815263 = product of:
          0.041630525 = sum of:
            0.041630525 = weight(_text_:22 in 131) [ClassicSimilarity], result of:
              0.041630525 = score(doc=131,freq=2.0), product of:
                0.17933317 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051211275 = queryNorm
                0.23214069 = fieldWeight in 131, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=131)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    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
  13. Tudhope, D.; Binding, C.; Blocks, D.; Cuncliffe, D.: Representation and retrieval in faceted systems (2003) 0.05
    0.04807339 = product of:
      0.07211008 = sum of:
        0.051772244 = weight(_text_:retrieval in 2703) [ClassicSimilarity], result of:
          0.051772244 = score(doc=2703,freq=8.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33420905 = fieldWeight in 2703, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2703)
        0.020337837 = product of:
          0.040675674 = sum of:
            0.040675674 = weight(_text_:conference in 2703) [ClassicSimilarity], result of:
              0.040675674 = score(doc=2703,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.20947012 = fieldWeight in 2703, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2703)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    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.
    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
    Theme
    Klassifikationssysteme im Online-Retrieval
    Verbale Doksprachen im Online-Retrieval
  14. Julien, C.-A.; Tirilly, P.; Leide, J.E.; Guastavino, C.: Using the LCSH hierarchy to browse a collection (2012) 0.05
    0.04807339 = product of:
      0.07211008 = sum of:
        0.051772244 = weight(_text_:retrieval in 834) [ClassicSimilarity], result of:
          0.051772244 = score(doc=834,freq=8.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.33420905 = fieldWeight in 834, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0390625 = fieldNorm(doc=834)
        0.020337837 = product of:
          0.040675674 = sum of:
            0.040675674 = weight(_text_:conference in 834) [ClassicSimilarity], result of:
              0.040675674 = score(doc=834,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.20947012 = fieldWeight in 834, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=834)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    The Library of Congress Subject Headings (LCSH) is a subject structure used to index large collections throughout the world. Browsing a collection through LCSH is difficult using current on-line tools in part because they are inadequately integrated with information collections. Users of these LCSH browsing tools are expected to find a promising LCSH string before using it to search for the information itself; many users do not have the patience for such a two-step process. This article proposes a method to fully integrate a specific collection in its subset of the LCSH hierarchy in order to facilitate LCSH browsing as well as information retrieval. Techniques are described to match LCSH strings assigned to the collection with an established string from the authority records, and build their specific LCSH hierarchy. The resulting subset of LCSH structure is described in terms of its size and broader/narrower term statistics, and implications for browsing and information retrieval are discussed. The results of this research have implications for institutions wishing to further capitalize on existing LCSH organization investments for the purpose of subject browsing and information retrieval.
    Source
    Categories, contexts and relations in knowledge organization: Proceedings of the Twelfth International ISKO Conference 6-9 August 2012, Mysore, India. Eds.: Neelameghan, A. u. K.S. Raghavan
    Theme
    Verbale Doksprachen im Online-Retrieval
  15. Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995) 0.05
    0.04611432 = product of:
      0.06917148 = sum of:
        0.041417796 = weight(_text_:retrieval in 3734) [ClassicSimilarity], result of:
          0.041417796 = score(doc=3734,freq=2.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.26736724 = fieldWeight in 3734, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0625 = fieldNorm(doc=3734)
        0.027753685 = product of:
          0.05550737 = sum of:
            0.05550737 = weight(_text_:22 in 3734) [ClassicSimilarity], result of:
              0.05550737 = score(doc=3734,freq=2.0), product of:
                0.17933317 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051211275 = queryNorm
                0.30952093 = fieldWeight in 3734, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3734)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Source
    Searcher. 3(1995) no.8, S.18-22
    Theme
    Verbale Doksprachen im Online-Retrieval
  16. Broughton, V.: Structural, linguistic and mathematical elements in indexing languages and search engines : implications for the use of index languages in electronic and non-LIS environments (2000) 0.04
    0.04344928 = product of:
      0.06517392 = sum of:
        0.04483608 = weight(_text_:retrieval in 96) [ClassicSimilarity], result of:
          0.04483608 = score(doc=96,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.28943354 = fieldWeight in 96, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0390625 = fieldNorm(doc=96)
        0.020337837 = product of:
          0.040675674 = sum of:
            0.040675674 = weight(_text_:conference in 96) [ClassicSimilarity], result of:
              0.040675674 = score(doc=96,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.20947012 = fieldWeight in 96, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=96)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    The paper looks at ways in which traditional classification and indexing tools have dealt with the relationships between constituent terms; variations in these are examined and compared with the methods used in machine searching, particularly of the Internet and World Wide Web. Apparent correspondences with features of index languages are identified, and further methods of applying classification and indexing theory to machine retrieval are proposed. There are various ways in which indexing and retrieval systems, both conventional and electronic, deal with the problem of searching for documents on a subject basis, and various approaches to the analysis and processing of a query. There appear to be three basic models; the taxonomic or structural system, in which the user is offered a map of the `universe of knowledge'; the language based system, which offers a vocabulary of the subject and a grammar for dealing with compound statements; and the mathematical model using the language of symbolic logic or the algebra of set theory
    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
    Theme
    Verbale Doksprachen im Online-Retrieval
  17. O'Neill, E.T.; Bennett, R.; Kammerer, K.: Using authorities to improve subject searches (2014) 0.04
    0.04344928 = product of:
      0.06517392 = sum of:
        0.04483608 = weight(_text_:retrieval in 1970) [ClassicSimilarity], result of:
          0.04483608 = score(doc=1970,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.28943354 = fieldWeight in 1970, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1970)
        0.020337837 = product of:
          0.040675674 = sum of:
            0.040675674 = weight(_text_:conference in 1970) [ClassicSimilarity], result of:
              0.040675674 = score(doc=1970,freq=2.0), product of:
                0.19418365 = queryWeight, product of:
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.051211275 = queryNorm
                0.20947012 = fieldWeight in 1970, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7918143 = idf(docFreq=2710, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1970)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Authority files have played an important role in improving the quality of indexing and subject cataloging. Although authorities can significantly improve searching by increasing the number of access points, they are rarely an integral part of the information retrieval process, particularly end-users' searches. A retrieval prototype, searchFAST, was developed to test the feasibility of using an authority file as an index to bibliographic records. searchFAST uses Faceted Application of Subject Terminology (FAST) as an index to OCLC's WorldCat.org bibliographic database. The searchFAST prototype complements, rather than replaces, existing WorldCat.org access. The bibliographic file is searched indirectly; first the authority file is searched to identify appropriate subject headings, then the headings are used to retrieve the matching bibliographic records. The prototype demonstrates the effectiveness and practicality of using an authority file as an index. Searching the authority file leverages authority control work by increasing the number of access points while supporting a simple interface designed for end-users.
    Footnote
    Contribution in a special issue "Beyond libraries: Subject metadata in the digital environment and Semantic Web" - Enthält Beiträge der gleichnamigen IFLA Satellite Post-Conference, 17-18 August 2012, Tallinn.
    Theme
    Verbale Doksprachen im Online-Retrieval
  18. Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000) 0.04
    0.04316365 = product of:
      0.06474547 = sum of:
        0.043930206 = weight(_text_:retrieval in 5920) [ClassicSimilarity], result of:
          0.043930206 = score(doc=5920,freq=4.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.2835858 = fieldWeight in 5920, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.046875 = fieldNorm(doc=5920)
        0.020815263 = product of:
          0.041630525 = sum of:
            0.041630525 = weight(_text_:22 in 5920) [ClassicSimilarity], result of:
              0.041630525 = score(doc=5920,freq=2.0), product of:
                0.17933317 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051211275 = queryNorm
                0.23214069 = fieldWeight in 5920, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5920)
          0.5 = coord(1/2)
      0.6666667 = coord(2/3)
    
    Abstract
    Library of Congress Subject Headings (LCSH), a system originally designed as a tool for subject access to the Library's own collection in the late nineteenth century, has become, in the course of the last century, the main subject retrieval tool in library catalogs throughout the United States and in many other countries. It is one of the largest non-specialized controlled vocabularies in the world. As LCSH enters a new century, it faces an information environment that has undergone vast changes from what had prevailed when LCSH began, or, indeed, from its state in the early days of the online age. In order to continue its mission and to be useful in spheres outside library catalogs as well, LCSH must adapt to the multifarious environment. One possible approach is to adopt a series of scalable and flexible syntax and application rules to meet the needs of different user communities
    Date
    27. 5.2001 16:22:21
    Theme
    Verbale Doksprachen im Online-Retrieval
  19. Gilchrist, A.: ¬The thesaurus in retrieval (1971) 0.04
    0.042271864 = product of:
      0.12681559 = sum of:
        0.12681559 = weight(_text_:retrieval in 4593) [ClassicSimilarity], result of:
          0.12681559 = score(doc=4593,freq=12.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.81864166 = fieldWeight in 4593, product of:
              3.4641016 = tf(freq=12.0), with freq of:
                12.0 = termFreq=12.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.078125 = fieldNorm(doc=4593)
      0.33333334 = coord(1/3)
    
    LCSH
    Information retrieval
    RSWK
    Schlagwortnormdatei / Information Retrieval
    Subject
    Schlagwortnormdatei / Information Retrieval
    Information retrieval
    Theme
    Verbale Doksprachen im Online-Retrieval
  20. Hjoerland, B.; Kyllesbech Nielsen, L.: Subject access points in electronic retrieval (2001) 0.04
    0.041847005 = product of:
      0.12554102 = sum of:
        0.12554102 = weight(_text_:retrieval in 3826) [ClassicSimilarity], result of:
          0.12554102 = score(doc=3826,freq=6.0), product of:
            0.15490976 = queryWeight, product of:
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.051211275 = queryNorm
            0.8104139 = fieldWeight in 3826, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.024915 = idf(docFreq=5836, maxDocs=44218)
              0.109375 = fieldNorm(doc=3826)
      0.33333334 = coord(1/3)
    
    Theme
    Klassifikationssysteme im Online-Retrieval
    Verbale Doksprachen im Online-Retrieval

Authors

Years

Languages

  • e 117
  • d 27
  • nl 2
  • f 1
  • i 1
  • ja 1
  • More… Less…

Types

  • a 122
  • m 13
  • el 10
  • s 7
  • d 2
  • i 1
  • r 1
  • More… Less…

Classifications