Document (#27761)

Author
Hjoerland, B.
Title
¬The methodology of constructing classification schemes : a discussion of the state-of-the-art
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
Imprint
Würzburg : Ergon Verlag
Year
2003
Pages
S.450-456
Series
Advances in knowledge organization; vol.8
Abstract
Special classifications have been somewhat neglected in KO compared to general classifications. The methodology of constructing special classifications is important, however, also for the methodology of constructing general classification schemes. The methodology of constructing special classifications can be regarded as one among about a dozen approaches to domain analysis. The methodology of (special) classification in LIS has been dominated by the rationalistic facet-analytic tradition, which, however, neglects the question of the empirical basis of classification. The empirical basis is much better grasped by, for example, bibliometric methods. Even the combination of rational and empirical methods is insufficient. This presentation will provide evidence for the necessity of historical and pragmatic methods for the methodology of classification and will point to the necessity of analyzing "paradigms". The presentation covers the methods of constructing classifications from Ranganathan to the design of ontologies in computer science and further to the recent "paradigm shift" in classification research. 1. Introduction Classification of a subject field is one among about eleven approaches to analyzing a domain that are specific for information science and in my opinion define the special competencies of information specialists (Hjoerland, 2002a). Classification and knowledge organization are commonly regarded as core qualifications of librarians and information specialists. Seen from this perspective one expects a firm methodological basis for the field. This paper tries to explore the state-of-the-art conceming the methodology of classification. 2. Classification: Science or non-science? As it is part of the curriculum at universities and subject in scientific journals and conferences like ISKO, orte expects classification/knowledge organization to be a scientific or scholarly activity and a scientific field. However, very often when information specialists classify or index documents and when they revise classification system, the methods seem to be rather ad hoc. Research libraries or scientific databases may employ people with adequate subject knowledge. When information scientists construct or evaluate systems, they very often elicit the knowledge from "experts" (Hjorland, 2002b, p. 260). Mostly no specific arguments are provided for the specific decisions in these processes.
Theme
Klassifikationstheorie: Elemente / Struktur
Information Gateway

Similar documents (author)

  1. Hjoerland, B.: ¬The concept of 'subject' in information science (1992) 4.48
    4.4805427 = sum of:
      4.4805427 = weight(author_txt:hjoerland in 2246) [ClassicSimilarity], result of:
        4.4805427 = fieldWeight in 2246, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.625 = fieldNorm(doc=2246)
    
  2. Hjoerland, B.: Subject representation and information seeking : contributions to a theory based on the theory of knowledge (1993) 4.48
    4.4805427 = sum of:
      4.4805427 = weight(author_txt:hjoerland in 7554) [ClassicSimilarity], result of:
        4.4805427 = fieldWeight in 7554, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.625 = fieldNorm(doc=7554)
    
  3. Hjoerland, B.: Theory of information science : Reply to Professor Gernot Wersig (1998) 4.48
    4.4805427 = sum of:
      4.4805427 = weight(author_txt:hjoerland in 1403) [ClassicSimilarity], result of:
        4.4805427 = fieldWeight in 1403, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.625 = fieldNorm(doc=1403)
    
  4. Hjoerland, B.: Information retrieval, text composition, and semantics (1998) 4.48
    4.4805427 = sum of:
      4.4805427 = weight(author_txt:hjoerland in 1649) [ClassicSimilarity], result of:
        4.4805427 = fieldWeight in 1649, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.625 = fieldNorm(doc=1649)
    
  5. Hjoerland, B.: ¬The classification of psychology : a case study in the classification of a knowledge field (1998) 4.48
    4.4805427 = sum of:
      4.4805427 = weight(author_txt:hjoerland in 4783) [ClassicSimilarity], result of:
        4.4805427 = fieldWeight in 4783, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.168868 = idf(docFreq=92, maxDocs=44421)
          0.625 = fieldNorm(doc=4783)
    

Similar documents (content)

  1. Robbio, A. de; Maguolo, D.; Marini, A.: Scientific and general subject classifications in the digital world (2001) 0.37
    0.3666121 = sum of:
      0.3666121 = product of:
        0.83320934 = sum of:
          0.049438067 = weight(abstract_txt:subject in 1002) [ClassicSimilarity], result of:
            0.049438067 = score(doc=1002,freq=8.0), product of:
              0.08174436 = queryWeight, product of:
                1.183671 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.017662663 = queryNorm
              0.6047887 = fieldWeight in 1002, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.0097548785 = weight(abstract_txt:information in 1002) [ClassicSimilarity], result of:
            0.0097548785 = score(doc=1002,freq=2.0), product of:
              0.052143596 = queryWeight, product of:
                1.2204696 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017662663 = queryNorm
              0.18707721 = fieldWeight in 1002, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.020841043 = weight(abstract_txt:when in 1002) [ClassicSimilarity], result of:
            0.020841043 = score(doc=1002,freq=1.0), product of:
              0.09191642 = queryWeight, product of:
                1.2551588 = boost
                4.1460857 = idf(docFreq=1910, maxDocs=44421)
                0.017662663 = queryNorm
              0.22673906 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1460857 = idf(docFreq=1910, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.033011474 = weight(abstract_txt:specific in 1002) [ClassicSimilarity], result of:
            0.033011474 = score(doc=1002,freq=2.0), product of:
              0.099131905 = queryWeight, product of:
                1.3034934 = boost
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.017662663 = queryNorm
              0.33300555 = fieldWeight in 1002, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.017390171 = weight(abstract_txt:knowledge in 1002) [ClassicSimilarity], result of:
            0.017390171 = score(doc=1002,freq=1.0), product of:
              0.08966624 = queryWeight, product of:
                1.4314822 = boost
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.017662663 = queryNorm
              0.19394335 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.022259915 = weight(abstract_txt:science in 1002) [ClassicSimilarity], result of:
            0.022259915 = score(doc=1002,freq=1.0), product of:
              0.10570821 = queryWeight, product of:
                1.5542678 = boost
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.017662663 = queryNorm
              0.21057886 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.038759127 = weight(abstract_txt:scientific in 1002) [ClassicSimilarity], result of:
            0.038759127 = score(doc=1002,freq=1.0), product of:
              0.15299447 = queryWeight, product of:
                1.8698611 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.017662663 = queryNorm
              0.2533368 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.060150243 = weight(abstract_txt:special in 1002) [ClassicSimilarity], result of:
            0.060150243 = score(doc=1002,freq=1.0), product of:
              0.22091301 = queryWeight, product of:
                2.5121012 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.017662663 = queryNorm
              0.27228022 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.38731846 = weight(abstract_txt:classifications in 1002) [ClassicSimilarity], result of:
            0.38731846 = score(doc=1002,freq=12.0), product of:
              0.33397564 = queryWeight, product of:
                3.088758 = boost
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.017662663 = queryNorm
              1.1597207 = fieldWeight in 1002, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.06538711 = weight(abstract_txt:methodology in 1002) [ClassicSimilarity], result of:
            0.06538711 = score(doc=1002,freq=1.0), product of:
              0.26127657 = queryWeight, product of:
                3.2325165 = boost
                4.5761847 = idf(docFreq=1242, maxDocs=44421)
                0.017662663 = queryNorm
              0.2502601 = fieldWeight in 1002, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5761847 = idf(docFreq=1242, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
          0.12889881 = weight(abstract_txt:classification in 1002) [ClassicSimilarity], result of:
            0.12889881 = score(doc=1002,freq=3.0), product of:
              0.3408728 = queryWeight, product of:
                4.834241 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.017662663 = queryNorm
              0.37814343 = fieldWeight in 1002, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.0546875 = fieldNorm(doc=1002)
        0.44 = coord(11/25)
    
  2. Hjoerland, B.: Domain analysis in information science : eleven approaches - traditional as well as innovative (2002) 0.35
    0.3495822 = sum of:
      0.3495822 = product of:
        0.794505 = sum of:
          0.035312902 = weight(abstract_txt:subject in 5464) [ClassicSimilarity], result of:
            0.035312902 = score(doc=5464,freq=2.0), product of:
              0.08174436 = queryWeight, product of:
                1.183671 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.017662663 = queryNorm
              0.43199193 = fieldWeight in 5464, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.017067483 = weight(abstract_txt:information in 5464) [ClassicSimilarity], result of:
            0.017067483 = score(doc=5464,freq=3.0), product of:
              0.052143596 = queryWeight, product of:
                1.2204696 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017662663 = queryNorm
              0.32731694 = fieldWeight in 5464, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.05775805 = weight(abstract_txt:specific in 5464) [ClassicSimilarity], result of:
            0.05775805 = score(doc=5464,freq=3.0), product of:
              0.099131905 = queryWeight, product of:
                1.3034934 = boost
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.017662663 = queryNorm
              0.5826383 = fieldWeight in 5464, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.037773885 = weight(abstract_txt:field in 5464) [ClassicSimilarity], result of:
            0.037773885 = score(doc=5464,freq=1.0), product of:
              0.10772254 = queryWeight, product of:
                1.3587996 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.017662663 = queryNorm
              0.35065904 = fieldWeight in 5464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.03513345 = weight(abstract_txt:knowledge in 5464) [ClassicSimilarity], result of:
            0.03513345 = score(doc=5464,freq=2.0), product of:
              0.08966624 = queryWeight, product of:
                1.4314822 = boost
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.017662663 = queryNorm
              0.39182472 = fieldWeight in 5464, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.03179988 = weight(abstract_txt:science in 5464) [ClassicSimilarity], result of:
            0.03179988 = score(doc=5464,freq=1.0), product of:
              0.10570821 = queryWeight, product of:
                1.5542678 = boost
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.017662663 = queryNorm
              0.30082697 = fieldWeight in 5464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.05879463 = weight(abstract_txt:empirical in 5464) [ClassicSimilarity], result of:
            0.05879463 = score(doc=5464,freq=1.0), product of:
              0.14467847 = queryWeight, product of:
                1.5747226 = boost
                5.2016807 = idf(docFreq=664, maxDocs=44421)
                0.017662663 = queryNorm
              0.4063813 = fieldWeight in 5464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2016807 = idf(docFreq=664, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.055370186 = weight(abstract_txt:scientific in 5464) [ClassicSimilarity], result of:
            0.055370186 = score(doc=5464,freq=1.0), product of:
              0.15299447 = queryWeight, product of:
                1.8698611 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.017662663 = queryNorm
              0.36190972 = fieldWeight in 5464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.18424526 = weight(abstract_txt:specialists in 5464) [ClassicSimilarity], result of:
            0.18424526 = score(doc=5464,freq=2.0), product of:
              0.24590446 = queryWeight, product of:
                2.0529828 = boost
                6.7814865 = idf(docFreq=136, maxDocs=44421)
                0.017662663 = queryNorm
              0.7492555 = fieldWeight in 5464, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.7814865 = idf(docFreq=136, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.12152183 = weight(abstract_txt:special in 5464) [ClassicSimilarity], result of:
            0.12152183 = score(doc=5464,freq=2.0), product of:
              0.22091301 = queryWeight, product of:
                2.5121012 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.017662663 = queryNorm
              0.55008906 = fieldWeight in 5464, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
          0.15972745 = weight(abstract_txt:classifications in 5464) [ClassicSimilarity], result of:
            0.15972745 = score(doc=5464,freq=1.0), product of:
              0.33397564 = queryWeight, product of:
                3.088758 = boost
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.017662663 = queryNorm
              0.4782608 = fieldWeight in 5464, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.078125 = fieldNorm(doc=5464)
        0.44 = coord(11/25)
    
  3. Hjoerland, B.: Is classification necessary after Google? (2012) 0.24
    0.23798528 = sum of:
      0.23798528 = product of:
        0.5949632 = sum of:
          0.019975996 = weight(abstract_txt:subject in 1388) [ClassicSimilarity], result of:
            0.019975996 = score(doc=1388,freq=1.0), product of:
              0.08174436 = queryWeight, product of:
                1.183671 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.017662663 = queryNorm
              0.24437155 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.007883132 = weight(abstract_txt:information in 1388) [ClassicSimilarity], result of:
            0.007883132 = score(doc=1388,freq=1.0), product of:
              0.052143596 = queryWeight, product of:
                1.2204696 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017662663 = queryNorm
              0.15118122 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.026677301 = weight(abstract_txt:specific in 1388) [ClassicSimilarity], result of:
            0.026677301 = score(doc=1388,freq=1.0), product of:
              0.099131905 = queryWeight, product of:
                1.3034934 = boost
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.017662663 = queryNorm
              0.26910913 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.305746 = idf(docFreq=1628, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.030219108 = weight(abstract_txt:field in 1388) [ClassicSimilarity], result of:
            0.030219108 = score(doc=1388,freq=1.0), product of:
              0.10772254 = queryWeight, product of:
                1.3587996 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.017662663 = queryNorm
              0.28052723 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.034303494 = weight(abstract_txt:basis in 1388) [ClassicSimilarity], result of:
            0.034303494 = score(doc=1388,freq=1.0), product of:
              0.11722253 = queryWeight, product of:
                1.4174497 = boost
                4.682171 = idf(docFreq=1117, maxDocs=44421)
                0.017662663 = queryNorm
              0.29263568 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.682171 = idf(docFreq=1117, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.025439903 = weight(abstract_txt:science in 1388) [ClassicSimilarity], result of:
            0.025439903 = score(doc=1388,freq=1.0), product of:
              0.10570821 = queryWeight, product of:
                1.5542678 = boost
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.017662663 = queryNorm
              0.24066156 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.039622217 = weight(abstract_txt:methods in 1388) [ClassicSimilarity], result of:
            0.039622217 = score(doc=1388,freq=1.0), product of:
              0.15300101 = queryWeight, product of:
                2.090613 = boost
                4.1434727 = idf(docFreq=1915, maxDocs=44421)
                0.017662663 = queryNorm
              0.25896704 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1434727 = idf(docFreq=1915, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.12778196 = weight(abstract_txt:classifications in 1388) [ClassicSimilarity], result of:
            0.12778196 = score(doc=1388,freq=1.0), product of:
              0.33397564 = queryWeight, product of:
                3.088758 = boost
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.017662663 = queryNorm
              0.38260862 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.07472812 = weight(abstract_txt:methodology in 1388) [ClassicSimilarity], result of:
            0.07472812 = score(doc=1388,freq=1.0), product of:
              0.26127657 = queryWeight, product of:
                3.2325165 = boost
                4.5761847 = idf(docFreq=1242, maxDocs=44421)
                0.017662663 = queryNorm
              0.28601155 = fieldWeight in 1388, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5761847 = idf(docFreq=1242, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
          0.20833196 = weight(abstract_txt:classification in 1388) [ClassicSimilarity], result of:
            0.20833196 = score(doc=1388,freq=6.0), product of:
              0.3408728 = queryWeight, product of:
                4.834241 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.017662663 = queryNorm
              0.61117214 = fieldWeight in 1388, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.0625 = fieldNorm(doc=1388)
        0.4 = coord(10/25)
    
  4. Rafols, I.; Leydesdorff, L.: Content-based and algorithmic classifications of journals : perspectives on the dynamics of scientific communication and indexer effects (2009) 0.23
    0.23294519 = sum of:
      0.23294519 = product of:
        0.64706993 = sum of:
          0.053398166 = weight(abstract_txt:schemes in 82) [ClassicSimilarity], result of:
            0.053398166 = score(doc=82,freq=2.0), product of:
              0.10916816 = queryWeight, product of:
                1.1168747 = boost
                5.5339513 = idf(docFreq=476, maxDocs=44421)
                0.017662663 = queryNorm
              0.48913682 = fieldWeight in 82, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5339513 = idf(docFreq=476, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.019975996 = weight(abstract_txt:subject in 82) [ClassicSimilarity], result of:
            0.019975996 = score(doc=82,freq=1.0), product of:
              0.08174436 = queryWeight, product of:
                1.183671 = boost
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.017662663 = queryNorm
              0.24437155 = fieldWeight in 82, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9099448 = idf(docFreq=2419, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.048637927 = weight(abstract_txt:analyzing in 82) [ClassicSimilarity], result of:
            0.048637927 = score(doc=82,freq=1.0), product of:
              0.12924244 = queryWeight, product of:
                1.2152315 = boost
                6.021295 = idf(docFreq=292, maxDocs=44421)
                0.017662663 = queryNorm
              0.37633094 = fieldWeight in 82, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.021295 = idf(docFreq=292, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.023818335 = weight(abstract_txt:when in 82) [ClassicSimilarity], result of:
            0.023818335 = score(doc=82,freq=1.0), product of:
              0.09191642 = queryWeight, product of:
                1.2551588 = boost
                4.1460857 = idf(docFreq=1910, maxDocs=44421)
                0.017662663 = queryNorm
              0.25913036 = fieldWeight in 82, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1460857 = idf(docFreq=1910, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.030219108 = weight(abstract_txt:field in 82) [ClassicSimilarity], result of:
            0.030219108 = score(doc=82,freq=1.0), product of:
              0.10772254 = queryWeight, product of:
                1.3587996 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.017662663 = queryNorm
              0.28052723 = fieldWeight in 82, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.050879806 = weight(abstract_txt:science in 82) [ClassicSimilarity], result of:
            0.050879806 = score(doc=82,freq=4.0), product of:
              0.10570821 = queryWeight, product of:
                1.5542678 = boost
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.017662663 = queryNorm
              0.48132312 = fieldWeight in 82, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.04429615 = weight(abstract_txt:scientific in 82) [ClassicSimilarity], result of:
            0.04429615 = score(doc=82,freq=1.0), product of:
              0.15299447 = queryWeight, product of:
                1.8698611 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.017662663 = queryNorm
              0.28952777 = fieldWeight in 82, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.2555639 = weight(abstract_txt:classifications in 82) [ClassicSimilarity], result of:
            0.2555639 = score(doc=82,freq=4.0), product of:
              0.33397564 = queryWeight, product of:
                3.088758 = boost
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.017662663 = queryNorm
              0.76521724 = fieldWeight in 82, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.121738 = idf(docFreq=264, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
          0.1202805 = weight(abstract_txt:classification in 82) [ClassicSimilarity], result of:
            0.1202805 = score(doc=82,freq=2.0), product of:
              0.3408728 = queryWeight, product of:
                4.834241 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.017662663 = queryNorm
              0.35286036 = fieldWeight in 82, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.0625 = fieldNorm(doc=82)
        0.36 = coord(9/25)
    
  5. Hjoerland, B.; Hartel, J.: Introduction to a Special Issue of Knowledge Organization (2003) 0.23
    0.22788471 = sum of:
      0.22788471 = product of:
        0.43823984 = sum of:
          0.0670735 = weight(abstract_txt:2002a in 4013) [ClassicSimilarity], result of:
            0.0670735 = score(doc=4013,freq=2.0), product of:
              0.17503184 = queryWeight, product of:
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.017662663 = queryNorm
              0.38320744 = fieldWeight in 4013, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.909708 = idf(docFreq=5, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.016519215 = weight(abstract_txt:schemes in 4013) [ClassicSimilarity], result of:
            0.016519215 = score(doc=4013,freq=1.0), product of:
              0.10916816 = queryWeight, product of:
                1.1168747 = boost
                5.5339513 = idf(docFreq=476, maxDocs=44421)
                0.017662663 = queryNorm
              0.15131898 = fieldWeight in 4013, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5339513 = idf(docFreq=476, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.012904492 = weight(abstract_txt:information in 4013) [ClassicSimilarity], result of:
            0.012904492 = score(doc=4013,freq=14.0), product of:
              0.052143596 = queryWeight, product of:
                1.2204696 = boost
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.017662663 = queryNorm
              0.2474799 = fieldWeight in 4013, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.010861045 = weight(abstract_txt:however in 4013) [ClassicSimilarity], result of:
            0.010861045 = score(doc=4013,freq=1.0), product of:
              0.094488986 = queryWeight, product of:
                1.2726023 = boost
                4.203706 = idf(docFreq=1803, maxDocs=44421)
                0.017662663 = queryNorm
              0.114945084 = fieldWeight in 4013, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.203706 = idf(docFreq=1803, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.02644172 = weight(abstract_txt:field in 4013) [ClassicSimilarity], result of:
            0.02644172 = score(doc=4013,freq=4.0), product of:
              0.10772254 = queryWeight, product of:
                1.3587996 = boost
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.017662663 = queryNorm
              0.24546133 = fieldWeight in 4013, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.4884357 = idf(docFreq=1356, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.015007779 = weight(abstract_txt:basis in 4013) [ClassicSimilarity], result of:
            0.015007779 = score(doc=4013,freq=1.0), product of:
              0.11722253 = queryWeight, product of:
                1.4174497 = boost
                4.682171 = idf(docFreq=1117, maxDocs=44421)
                0.017662663 = queryNorm
              0.12802811 = fieldWeight in 4013, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.682171 = idf(docFreq=1117, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.03253403 = weight(abstract_txt:knowledge in 4013) [ClassicSimilarity], result of:
            0.03253403 = score(doc=4013,freq=14.0), product of:
              0.08966624 = queryWeight, product of:
                1.4314822 = boost
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.017662663 = queryNorm
              0.36283478 = fieldWeight in 4013, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                3.5463927 = idf(docFreq=3480, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.027262717 = weight(abstract_txt:science in 4013) [ClassicSimilarity], result of:
            0.027262717 = score(doc=4013,freq=6.0), product of:
              0.10570821 = queryWeight, product of:
                1.5542678 = boost
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.017662663 = queryNorm
              0.2579054 = fieldWeight in 4013, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.850585 = idf(docFreq=2567, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.046014074 = weight(abstract_txt:empirical in 4013) [ClassicSimilarity], result of:
            0.046014074 = score(doc=4013,freq=5.0), product of:
              0.14467847 = queryWeight, product of:
                1.5747226 = boost
                5.2016807 = idf(docFreq=664, maxDocs=44421)
                0.017662663 = queryNorm
              0.31804368 = fieldWeight in 4013, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.2016807 = idf(docFreq=664, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.027406843 = weight(abstract_txt:scientific in 4013) [ClassicSimilarity], result of:
            0.027406843 = score(doc=4013,freq=2.0), product of:
              0.15299447 = queryWeight, product of:
                1.8698611 = boost
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.017662663 = queryNorm
              0.17913617 = fieldWeight in 4013, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6324444 = idf(docFreq=1174, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.024514996 = weight(abstract_txt:methods in 4013) [ClassicSimilarity], result of:
            0.024514996 = score(doc=4013,freq=2.0), product of:
              0.15300101 = queryWeight, product of:
                2.090613 = boost
                4.1434727 = idf(docFreq=1915, maxDocs=44421)
                0.017662663 = queryNorm
              0.16022767 = fieldWeight in 4013, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1434727 = idf(docFreq=1915, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.06725001 = weight(abstract_txt:special in 4013) [ClassicSimilarity], result of:
            0.06725001 = score(doc=4013,freq=5.0), product of:
              0.22091301 = queryWeight, product of:
                2.5121012 = boost
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.017662663 = queryNorm
              0.30441853 = fieldWeight in 4013, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.978838 = idf(docFreq=830, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
          0.06444941 = weight(abstract_txt:classification in 4013) [ClassicSimilarity], result of:
            0.06444941 = score(doc=4013,freq=3.0), product of:
              0.3408728 = queryWeight, product of:
                4.834241 = boost
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.017662663 = queryNorm
              0.18907171 = fieldWeight in 4013, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.9921594 = idf(docFreq=2228, maxDocs=44421)
                0.02734375 = fieldNorm(doc=4013)
        0.52 = coord(13/25)