Search (63 results, page 1 of 4)

  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  • × year_i:[1990 TO 2000}
  1. Drabenstott, K.M.; Vizine-Goetz, D.: Using subject headings for online retrieval : theory, practice and potential (1994) 0.01 
    0.014811091 = product of:
  0.069118425 = sum of:
    0.032266766 = weight(_text_:system in 386) [ClassicSimilarity], result of:
      0.032266766 = score(doc=386,freq=8.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.41757566 = fieldWeight in 386, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.046875 = fieldNorm(doc=386)
    0.0070881573 = weight(_text_:information in 386) [ClassicSimilarity], result of:
      0.0070881573 = score(doc=386,freq=4.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.16457605 = fieldWeight in 386, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=386)
    0.029763501 = weight(_text_:retrieval in 386) [ClassicSimilarity], result of:
      0.029763501 = score(doc=386,freq=8.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.40105087 = fieldWeight in 386, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.046875 = fieldNorm(doc=386)
  0.21428572 = coord(3/14)
    Abstract
    Using subject headings for Online Retrieval is an indispensable tool for online system desingners who are developing new systems or refining exicting ones. The book describes subject analysis and subject searching in online catalogs, including the limitations of retrieval, and demonstrates how such limitations can be overcome through system design and programming. The book describes the Library of Congress Subject headings system and system characteristics, shows how information is stored in machine readable files, and offers examples of and recommendations for successful methods. Tables are included to support these recommendations, and diagrams, graphs, and bar charts are used to provide results of data analyses.
    Footnote
    Rez. in: Information processing and management 31(1995) no.3, S.450-451 (R.R. Larson); Library resources and technical services 41(1997) no.1, S.60-67 (B.H. Weinberg)
    Theme
    Verbale Doksprachen im Online-Retrieval
  2. Blair, D.C.: Language and representation in information retrieval (1991) 0.01 
    0.013120212 = product of:
  0.061227653 = sum of:
    0.010755588 = weight(_text_:system in 1545) [ClassicSimilarity], result of:
      0.010755588 = score(doc=1545,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.13919188 = fieldWeight in 1545, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.03125 = fieldNorm(doc=1545)
    0.012047551 = weight(_text_:information in 1545) [ClassicSimilarity], result of:
      0.012047551 = score(doc=1545,freq=26.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.2797255 = fieldWeight in 1545, product of:
          5.0990195 = tf(freq=26.0), with freq of:
            26.0 = termFreq=26.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.03125 = fieldNorm(doc=1545)
    0.038424514 = weight(_text_:retrieval in 1545) [ClassicSimilarity], result of:
      0.038424514 = score(doc=1545,freq=30.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.51775444 = fieldWeight in 1545, product of:
          5.477226 = tf(freq=30.0), with freq of:
            30.0 = termFreq=30.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.03125 = fieldNorm(doc=1545)
  0.21428572 = coord(3/14)
    Abstract
    Information or Document Retrieval is the subject of this book. It is not an introductory book, although it is self-contained in the sense that it is not necessary to have a background in the theory or practice of Information Retrieval in order to understand its arguments. The book presents, as clearly as possible, one particular perspective on Information Retrieval, and attempts to say that certain aspects of the theory or practice of the management of documents are more important than others. The majority of Information Retrieval research has been aimed at the more experimentally tractable small-scale systems, and although much of that work has added greatly to our understanding of Information Retrieval it is becoming increasingly apparent that retrieval systems with large data bases of documents are a fundamentally different genre of systems than small-scale systems. If this is so, which is the thesis of this book, then we must now study large information retrieval systems with the same rigor and intensity that we once studied small-scale systems. Hegel observed that the quantitative growth of any system caused qualitative changes to take place in its structure and processes.
    COMPASS
    Information retrieval
    LCSH
    Information Retrieval
    RSWK
    Information Retrieval
    Subject
    Information retrieval
    Information Retrieval
    Information Retrieval
    Theme
    Verbale Doksprachen im Online-Retrieval
  3. Meikle, D.: Syndetic structure and OPACs : a literature review (1995) 0.01 
    0.010293491 = product of:
  0.048036292 = sum of:
    0.021511177 = weight(_text_:system in 3349) [ClassicSimilarity], result of:
      0.021511177 = score(doc=3349,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.27838376 = fieldWeight in 3349, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0625 = fieldNorm(doc=3349)
    0.006682779 = weight(_text_:information in 3349) [ClassicSimilarity], result of:
      0.006682779 = score(doc=3349,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.1551638 = fieldWeight in 3349, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=3349)
    0.019842334 = weight(_text_:retrieval in 3349) [ClassicSimilarity], result of:
      0.019842334 = score(doc=3349,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.26736724 = fieldWeight in 3349, 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=3349)
  0.21428572 = coord(3/14)
    Abstract
    Attempts to gauge whether syndetic structure, the cross reference system long regarded as an integral component of the controlled vocabulary which predominates as the indexing framework for online subject searching, still has a role to play in assisting end users in their information quests. To this end, examines a number of existing and proposed enhancements to OPACs by means of a literatur review. These include: Boolean and keyword searching; online browsing; artificial intelligence; classification clustering; and hypertext. Discusses Dervin's sensemaking theories and methodologies
    Theme
    Verbale Doksprachen im Online-Retrieval
  4. Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996) 0.01 
    0.010246813 = product of:
  0.047818463 = sum of:
    0.018822279 = weight(_text_:system in 7238) [ClassicSimilarity], result of:
      0.018822279 = score(doc=7238,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.2435858 = fieldWeight in 7238, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0546875 = fieldNorm(doc=7238)
    0.017362041 = weight(_text_:retrieval in 7238) [ClassicSimilarity], result of:
      0.017362041 = score(doc=7238,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.23394634 = fieldWeight in 7238, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=7238)
    0.011634145 = product of:
      0.02326829 = sum of:
        0.02326829 = weight(_text_:22 in 7238) [ClassicSimilarity], result of:
          0.02326829 = score(doc=7238,freq=2.0), product of:
            0.085914485 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02453417 = queryNorm
            0.2708308 = fieldWeight in 7238, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=7238)
      0.5 = coord(1/2)
  0.21428572 = coord(3/14)
    Abstract
    Subject access in library OPACs might be improved for some users by taking advantage of all of the hierarchical relationships which are indicated on existing LCSH entries. Recommends that cross references pointing to broader terms be displayed, in addition to those for narrower and related terms to which users have traditionally benn directed. Traces the old practice back to Charles Cutter, reports on deliberations of the ALCTS Subject Analysis Committee nearly 120 years later. Discusses practical concerns related to implementing the change, including the accuracy of hierarchical relationships in the LCSH system and possible techniques for using the MARC format to generate the cross references
    Date
    22. 4.1997 20:43:23
    Theme
    Verbale Doksprachen im Online-Retrieval
  5. Chen, H.; Yim, T.; Fye, D.: Automatic thesaurus generation for an electronic community system (1995) 0.01 
    0.009314393 = product of:
  0.043467164 = sum of:
    0.02688897 = weight(_text_:system in 2918) [ClassicSimilarity], result of:
      0.02688897 = score(doc=2918,freq=8.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.3479797 = fieldWeight in 2918, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2918)
    0.004176737 = weight(_text_:information in 2918) [ClassicSimilarity], result of:
      0.004176737 = score(doc=2918,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.09697737 = fieldWeight in 2918, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2918)
    0.012401459 = weight(_text_:retrieval in 2918) [ClassicSimilarity], result of:
      0.012401459 = score(doc=2918,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.16710453 = fieldWeight in 2918, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2918)
  0.21428572 = coord(3/14)
    Abstract
    Reports an algorithmic approach to the automatic generation of thesauri for electronic community systems. The techniques used included terms filtering, automatic indexing, and cluster analysis. The testbed for the research was the Worm Community System, which contains a comprehensive library of specialized community data and literature, currently in use by molecular biologists who study the nematode worm. The resulting worm thesaurus included 2709 researchers' names, 798 gene names, 20 experimental methods, and 4302 subject descriptors. On average, each term had about 90 weighted neighbouring terms indicating relevant concepts. The thesaurus was developed as an online search aide. Tests the worm thesaurus in an experiment with 6 worm researchers of varying degrees of expertise and background. The experiment showed that the thesaurus was an excellent 'memory jogging' device and that it supported learning and serendipitous browsing. Despite some occurrences of obvious noise, the system was useful in suggesting relevant concepts for the researchers' queries and it helped improve concept recall. With a simple browsing interface, an automatic thesaurus can become a useful tool for online search and can assist researchers in exploring and traversing a dynamic and complex electronic community system
    Source
    Journal of the American Society for Information Science. 46(1995) no.3, S.175-193
    Theme
    Verbale Doksprachen im Online-Retrieval
  6. Davies, R.: Thesaurus-aided searching in search and retrieval protocols (1996) 0.01 
    0.00798273 = product of:
  0.05587911 = sum of:
    0.021511177 = weight(_text_:system in 5169) [ClassicSimilarity], result of:
      0.021511177 = score(doc=5169,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.27838376 = fieldWeight in 5169, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0625 = fieldNorm(doc=5169)
    0.03436793 = weight(_text_:retrieval in 5169) [ClassicSimilarity], result of:
      0.03436793 = score(doc=5169,freq=6.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = 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)
  0.14285715 = coord(2/14)
    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
    Theme
    Verbale Doksprachen im Online-Retrieval
  7. Cochrane, P.A.: Indexing and searching thesauri, the Janus or Proteus of information retrieval (1992) 0.01 
    0.0074451594 = product of:
  0.052116115 = sum of:
    0.0100241685 = weight(_text_:information in 2098) [ClassicSimilarity], result of:
      0.0100241685 = score(doc=2098,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.23274569 = fieldWeight in 2098, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=2098)
    0.042091947 = weight(_text_:retrieval in 2098) [ClassicSimilarity], result of:
      0.042091947 = score(doc=2098,freq=4.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.5671716 = fieldWeight in 2098, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.09375 = fieldNorm(doc=2098)
  0.14285715 = coord(2/14)
    Theme
    Verbale Doksprachen im Online-Retrieval
  8. 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) 0.01 
    0.0073304838 = product of:
  0.051313385 = sum of:
    0.008353474 = weight(_text_:information in 2184) [ClassicSimilarity], result of:
      0.008353474 = score(doc=2184,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.19395474 = fieldWeight in 2184, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.078125 = fieldNorm(doc=2184)
    0.042959914 = weight(_text_:retrieval in 2184) [ClassicSimilarity], result of:
      0.042959914 = score(doc=2184,freq=6.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = 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)
  0.14285715 = coord(2/14)
    Theme
    Verbale Doksprachen im Online-Retrieval
  9. McIlwaine, I.C.: Subject control : the British viewpoint (1995) 0.01 
    0.0071805334 = product of:
  0.050263733 = sum of:
    0.030421399 = weight(_text_:system in 1632) [ClassicSimilarity], result of:
      0.030421399 = score(doc=1632,freq=4.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.3936941 = fieldWeight in 1632, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0625 = fieldNorm(doc=1632)
    0.019842334 = weight(_text_:retrieval in 1632) [ClassicSimilarity], result of:
      0.019842334 = score(doc=1632,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.26736724 = fieldWeight in 1632, 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=1632)
  0.14285715 = coord(2/14)
    Footnote
    Enthält das Ergebnis einer Befragung. 0 hielten das System für sehr gut; 13 für gut; 11 für halbwegs gut; 7 für halbwegs gut; 11 für schlecht. 8,9% der Befragten würden das System übernehmen, 47,5% nicht, 43,6% vielleicht
    Theme
    Verbale Doksprachen im Online-Retrieval
  10. Studwell, W.E.: Who killed the subject code? (1994) 0.01 
    0.007137598 = product of:
  0.049963184 = sum of:
    0.032601144 = weight(_text_:system in 1595) [ClassicSimilarity], result of:
      0.032601144 = score(doc=1595,freq=6.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.42190298 = fieldWeight in 1595, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1595)
    0.017362041 = weight(_text_:retrieval in 1595) [ClassicSimilarity], result of:
      0.017362041 = score(doc=1595,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.23394634 = fieldWeight in 1595, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1595)
  0.14285715 = coord(2/14)
    Abstract
    A movement for a subject heading code to standardize LCSH and their usage gained considerable attention in the late 1980s and early 1990s. Examines the reasons for the lack of progress in this project, which include: the lack of any plan from the LoC which could serve as a philosophical foundation for either a subject access system or the changes made to it; the belief that online catalogues make a controlled subject vocabulary obsolete; and professional ignorance, apathy, and negativism. Warns that, in an increasingly complex age, lack of standardization of any technical system or process tends to lead to the demise of that system or process
    Theme
    Verbale Doksprachen im Online-Retrieval
  11. Lopes, M.I.: Principles underlying subject heading languages : an international approach (1996) 0.01 
    0.0069848886 = product of:
  0.04889422 = sum of:
    0.018822279 = weight(_text_:system in 5608) [ClassicSimilarity], result of:
      0.018822279 = score(doc=5608,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.2435858 = fieldWeight in 5608, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5608)
    0.03007194 = weight(_text_:retrieval in 5608) [ClassicSimilarity], result of:
      0.03007194 = score(doc=5608,freq=6.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.40520695 = fieldWeight in 5608, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=5608)
  0.14285715 = coord(2/14)
    Abstract
    Discusses the problems in establishing commonly accepted principles for subject retrieval between different bibliographic systems. The Working Group on Principles Underlying Subject Heading Languages was established to devise general principles for any subject retrieval system and to review existing real systems in the light of such principles and compare them in order to evaluate the extent of their coverage and their application in current practices. Provides a background and history of the Working Group. Discusses the principles underlying subject headings and their purposes and the state of the work and major findings
    Theme
    Verbale Doksprachen im Online-Retrieval
  12. Piternick, A.B.: Vocabularies for online subject searching (1990) 0.01 
    0.0066312784 = product of:
  0.046418946 = sum of:
    0.011694863 = weight(_text_:information in 1330) [ClassicSimilarity], result of:
      0.011694863 = score(doc=1330,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.27153665 = fieldWeight in 1330, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=1330)
    0.034724083 = weight(_text_:retrieval in 1330) [ClassicSimilarity], result of:
      0.034724083 = score(doc=1330,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.46789268 = fieldWeight in 1330, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=1330)
  0.14285715 = coord(2/14)
    Source
    Encyclopedia of library and information science. Vol.45, [=Suppl.10]
    Theme
    Verbale Doksprachen im Online-Retrieval
  13. Zeng, L.: Achieving compatibility of indexing languages in online access environment (1992) 0.01 
    0.0066312784 = product of:
  0.046418946 = sum of:
    0.011694863 = weight(_text_:information in 1284) [ClassicSimilarity], result of:
      0.011694863 = score(doc=1284,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.27153665 = fieldWeight in 1284, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.109375 = fieldNorm(doc=1284)
    0.034724083 = weight(_text_:retrieval in 1284) [ClassicSimilarity], result of:
      0.034724083 = score(doc=1284,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.46789268 = fieldWeight in 1284, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.109375 = fieldNorm(doc=1284)
  0.14285715 = coord(2/14)
    Source
    Encyclopedia of library and information science. Vol.50, [=Suppl.13]
    Theme
    Verbale Doksprachen im Online-Retrieval
  14. Connell, T.H.: Use of the LCSH system : realities (1996) 0.01 
    0.006282966 = product of:
  0.043980762 = sum of:
    0.026618723 = weight(_text_:system in 6941) [ClassicSimilarity], result of:
      0.026618723 = score(doc=6941,freq=4.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.34448233 = fieldWeight in 6941, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6941)
    0.017362041 = weight(_text_:retrieval in 6941) [ClassicSimilarity], result of:
      0.017362041 = score(doc=6941,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.23394634 = fieldWeight in 6941, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6941)
  0.14285715 = coord(2/14)
    Abstract
    Explores the question of whether academic libraries keep up with the changes in the LCSH system. Analysis of the handling of 15 subject headings in 50 academic library catalogues available via the Internet found that libraries are not consistently maintaining subject authority control, or making syndetic references and scope notes in their catalogues. Discusses the results from the perspective of the libraries' performance, performance on the headings overall, performance on references, performance on the type of change made to the headings,a nd performance within 3 widely used onlien catalogue systems (DRA, INNOPAC and NOTIS). Discusses the implications of the findings in relationship to expressions of dissatisfaction with the effectiveness of subject cataloguing expressed by discussion groups on the Internet
    Theme
    Verbale Doksprachen im Online-Retrieval
  15. Milstead, J.L.: Thesauri in a full-text world (1998) 0.01 
    0.0062282225 = product of:
  0.029065037 = sum of:
    0.008353474 = weight(_text_:information in 2337) [ClassicSimilarity], result of:
      0.008353474 = score(doc=2337,freq=8.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.19395474 = fieldWeight in 2337, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2337)
    0.012401459 = weight(_text_:retrieval in 2337) [ClassicSimilarity], result of:
      0.012401459 = score(doc=2337,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.16710453 = fieldWeight in 2337, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2337)
    0.008310104 = product of:
      0.016620208 = sum of:
        0.016620208 = weight(_text_:22 in 2337) [ClassicSimilarity], result of:
          0.016620208 = score(doc=2337,freq=2.0), product of:
            0.085914485 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.02453417 = queryNorm
            0.19345059 = fieldWeight in 2337, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2337)
      0.5 = coord(1/2)
  0.21428572 = coord(3/14)
    Abstract
    Despite early claims to the contemporary, thesauri continue to find use as access tools for information in the full-text environment. Their mode of use is changing, but this change actually represents an expansion rather than a contrdiction of their utility. Thesauri and similar vocabulary tools can complement full-text access by aiding users in focusing their searches, by supplementing the linguistic analysis of the text search engine, and even by serving as one of the tools used by the linguistic engine for its analysis. While human indexing contunues to be used for many databases, the trend is to increase the use of machine aids for this purpose. All machine-aided indexing (MAI) systems rely on thesauri as the basis for term selection. In the 21st century, the balance of effort between human and machine will change at both input and output, but thesauri will continue to play an important role for the foreseeable future
    Date
    22. 9.1997 19:16:05
    Imprint
    Urbana-Champaign, IL : Illinois University at Urbana-Champaign, Graduate School of Library and Information Science
    Source
    Visualizing subject access for 21st century information resources: Papers presented at the 1997 Clinic on Library Applications of Data Processing, 2-4 Mar 1997, Graduate School of Library and Information Science, University of Illinois at Urbana-Champaign. Ed.: P.A. Cochrane et al
    Theme
    Verbale Doksprachen im Online-Retrieval
  16. Bodoff, D.; Kambil, A.: Partial coordination : II. A preliminary evaluation and failure analysis (1998) 0.01 
    0.0062201223 = product of:
  0.043540854 = sum of:
    0.0070881573 = weight(_text_:information in 2323) [ClassicSimilarity], result of:
      0.0070881573 = score(doc=2323,freq=4.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.16457605 = fieldWeight in 2323, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.046875 = fieldNorm(doc=2323)
    0.036452696 = weight(_text_:retrieval in 2323) [ClassicSimilarity], result of:
      0.036452696 = score(doc=2323,freq=12.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.49118498 = fieldWeight in 2323, product of:
          3.4641016 = tf(freq=12.0), with freq of:
            12.0 = termFreq=12.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.046875 = fieldNorm(doc=2323)
  0.14285715 = coord(2/14)
    Abstract
    Partial coordination is a new method for cataloging documents for subject access. It is especially designed to enhance the precision of document searches in online environments. This article reports a preliminary evaluation of partial coordination that shows promising results compared with full-text retrieval. We also report the difficulties in empirically evaluating the effectiveness of automatic full-text retrieval in contrast to mixed methods such as partial coordination which combine human cataloging with computerized retrieval. Based on our study, we propose research in this area will substantially benefit from a common framework for failure analysis and a common data set. This will allow information retrieval researchers adapting 'library style'cataloging to large electronic document collections, as well as those developing automated or mixed methods, to directly compare their proposals for indexing and retrieval. This article concludes by suggesting guidelines for constructing such as testbed
    Source
    Journal of the American Society for Information Science. 49(1998) no.14, S.1270-1282
    Theme
    Verbale Doksprachen im Online-Retrieval
  17. Aluri, R.D.; Kemp, A.; Boll, J.J.: Subject analysis in online catalogs (1991) 0.01 
    0.006141943 = product of:
  0.042993598 = sum of:
    0.008269517 = weight(_text_:information in 863) [ClassicSimilarity], result of:
      0.008269517 = score(doc=863,freq=4.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.1920054 = fieldWeight in 863, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0546875 = fieldNorm(doc=863)
    0.034724083 = weight(_text_:retrieval in 863) [ClassicSimilarity], result of:
      0.034724083 = score(doc=863,freq=8.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.46789268 = fieldWeight in 863, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0546875 = fieldNorm(doc=863)
  0.14285715 = coord(2/14)
    LCSH
    Information retrieval
    Subject
    Information retrieval
    Theme
    Klassifikationssysteme im Online-Retrieval
    Verbale Doksprachen im Online-Retrieval
  18. Takeda, N.: Problems in hierarchical structures in thesauri : their influences on the results of information retrieval (1994) 0.01 
    0.0058643874 = product of:
  0.04105071 = sum of:
    0.006682779 = weight(_text_:information in 2642) [ClassicSimilarity], result of:
      0.006682779 = score(doc=2642,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.1551638 = fieldWeight in 2642, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0625 = fieldNorm(doc=2642)
    0.03436793 = weight(_text_:retrieval in 2642) [ClassicSimilarity], result of:
      0.03436793 = score(doc=2642,freq=6.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.46309367 = fieldWeight in 2642, 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=2642)
  0.14285715 = coord(2/14)
    Abstract
    In online retrieval search results do not always match the intent in spite of using correct keywords (descriptors). One of the causes of this problem is found in the hierarchical structures of the thesaurus, which often contains relations between broader and narrower concepts, the opposite of which is not necessarily true. Some examples are described from 2 thesauri, MeSH and JICST. In these cases searchers need to make an effort to increase precision
    Theme
    Verbale Doksprachen im Online-Retrieval
  19. Gomez, L.; Lochbaum, C.C.; Landauer, T.K.: All the right words: finding what you want as an function of richness of indexing vocabulary (1990) 0.01 
    0.005683953 = product of:
  0.03978767 = sum of:
    0.0100241685 = weight(_text_:information in 154) [ClassicSimilarity], result of:
      0.0100241685 = score(doc=154,freq=2.0), product of:
        0.04306919 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.02453417 = queryNorm
        0.23274569 = fieldWeight in 154, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.09375 = fieldNorm(doc=154)
    0.029763501 = weight(_text_:retrieval in 154) [ClassicSimilarity], result of:
      0.029763501 = score(doc=154,freq=2.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = queryNorm
        0.40105087 = fieldWeight in 154, 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=154)
  0.14285715 = coord(2/14)
    Source
    Journal of the American Society for information Science. 41(1990) no.8, S.547-559
    Theme
    Verbale Doksprachen im Online-Retrieval
  20. Subject authorities in the online environment : papers from a conference program held in San Francisco, 29.6.1987 (1991) 0.01 
    0.0053113373 = product of:
  0.03717936 = sum of:
    0.016133383 = weight(_text_:system in 2215) [ClassicSimilarity], result of:
      0.016133383 = score(doc=2215,freq=2.0), product of:
        0.07727166 = queryWeight, product of:
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.02453417 = queryNorm
        0.20878783 = fieldWeight in 2215, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.1495528 = idf(docFreq=5152, maxDocs=44218)
          0.046875 = fieldNorm(doc=2215)
    0.021045974 = weight(_text_:retrieval in 2215) [ClassicSimilarity], result of:
      0.021045974 = score(doc=2215,freq=4.0), product of:
        0.07421378 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.02453417 = 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)
  0.14285715 = coord(2/14)
    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

Authors

Languages

  • e 40
  • d 20
  • f 1
  • ja 1
  • nl 1
  • More… Less…

Types

  • a 55
  • m 5
  • s 3
  • el 1
  • More… Less…

Themes

Subjects

Classifications