Search (33 results, page 1 of 2)

  • × author_ss:"Fugmann, R."
  1. Fugmann, R.: Obstacles to progress in mechanized subject access and the necessity of a paradigm change (2000) 0.05
    0.05039523 = product of:
      0.10079046 = sum of:
        0.10079046 = sum of:
          0.005182037 = weight(_text_:e in 1182) [ClassicSimilarity], result of:
            0.005182037 = score(doc=1182,freq=2.0), product of:
              0.06526148 = queryWeight, product of:
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.0454034 = queryNorm
              0.07940422 = fieldWeight in 1182, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.0390625 = fieldNorm(doc=1182)
          0.064850755 = weight(_text_:p in 1182) [ClassicSimilarity], result of:
            0.064850755 = score(doc=1182,freq=8.0), product of:
              0.1632485 = queryWeight, product of:
                3.5955126 = idf(docFreq=3298, maxDocs=44218)
                0.0454034 = queryNorm
              0.39725178 = fieldWeight in 1182, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.5955126 = idf(docFreq=3298, maxDocs=44218)
                0.0390625 = fieldNorm(doc=1182)
          0.030757671 = weight(_text_:22 in 1182) [ClassicSimilarity], result of:
            0.030757671 = score(doc=1182,freq=2.0), product of:
              0.15899497 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0454034 = queryNorm
              0.19345059 = fieldWeight in 1182, 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=1182)
      0.5 = coord(1/2)
    
    Abstract
    Contemporary information systems, both the private and the commercially available ones, have often been blamed for their low effectiveness in terms of precision and recall, especially when they have reached considerable size with respect to file volume and use frequency (see, for example, Belkin, 1980; Blair, 1996, p.19; Desai, 1997; Drabenstott, 1996; Knorz, 1998). Saracevic (1989), after having reviewed the contemporary design of online subject access, calls "for radically different design principles and implementation" (p. 107). Van Rijsbergen (1990) writes: "The keywords approach with statistical techniques has reached its theoretical limit and further attempts for improvement are considered a waste of time" (p. 111). Lancaster (1992) deplores that very little really significant literature an subject indexing has been published in the last thirty or so years. In her preface to the Proceedings of the Sixth International Study Conference an Classification Research in 1997, Mcllwaine (1997) writes, "many were surprised to find that the problems with which they wrestle today are not greatly different from those that have been occupying the minds of specialists in the field for over a generation, and probably a great deal longer" (p. v).
    Date
    22. 9.1997 19:16:05
    Language
    e
  2. Fugmann, R.: Experiences with a faceted classification in organic chemistry using computers (1965) 0.04
    0.03510025 = product of:
      0.0702005 = sum of:
        0.0702005 = product of:
          0.105300754 = sum of:
            0.014509703 = weight(_text_:e in 2629) [ClassicSimilarity], result of:
              0.014509703 = score(doc=2629,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2223318 = fieldWeight in 2629, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2629)
            0.090791054 = weight(_text_:p in 2629) [ClassicSimilarity], result of:
              0.090791054 = score(doc=2629,freq=2.0), product of:
                0.1632485 = queryWeight, product of:
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.0454034 = queryNorm
                0.55615246 = fieldWeight in 2629, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5955126 = idf(docFreq=3298, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2629)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Language
    e
    Source
    Classification research: proceedings of the 2nd Int. Study Conf. ... Elsinore, Denmark. 14.-18.9.1964. Ed.: P. Atherton
  3. Fugmann, R.: What is information? : an information veteran looks back (2022) 0.02
    0.023959806 = product of:
      0.047919612 = sum of:
        0.047919612 = product of:
          0.07187942 = sum of:
            0.010364074 = weight(_text_:e in 1085) [ClassicSimilarity], result of:
              0.010364074 = score(doc=1085,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.15880844 = fieldWeight in 1085, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1085)
            0.061515342 = weight(_text_:22 in 1085) [ClassicSimilarity], result of:
              0.061515342 = score(doc=1085,freq=2.0), product of:
                0.15899497 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0454034 = queryNorm
                0.38690117 = fieldWeight in 1085, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1085)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    18. 8.2022 19:22:57
    Language
    e
  4. Fugmann, R.: ¬The glamour and the misery of the thesaurus approach : treatise 4 on information retrieval theory (1974) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 1671) [ClassicSimilarity], result of:
              0.016582519 = score(doc=1671,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 1671, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=1671)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  5. Fugmann, R.: ¬The theoretical foundation of the IDC-system : 6 postulates for information retrieval; treatise 1 on information retrieval theory (1972) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 1672) [ClassicSimilarity], result of:
              0.016582519 = score(doc=1672,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 1672, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=1672)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  6. Fugmann, R.: ¬The5[¬five] axiom theory of indexing and information supply (1985) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 1944) [ClassicSimilarity], result of:
              0.016582519 = score(doc=1944,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 1944, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=1944)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  7. Fugmann, R.: Peculiarities of chemical information from a theoretical viewpoint (1985) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 4026) [ClassicSimilarity], result of:
              0.016582519 = score(doc=4026,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 4026, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=4026)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  8. Fugmann, R.: Toward a theory of information supply and indexing : treatise 6 on retrieval system theory (1976) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 4766) [ClassicSimilarity], result of:
              0.016582519 = score(doc=4766,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 4766, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=4766)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  9. Fugmann, R.: Comments on: the UNISIST draft on indexing principles (1977) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 4767) [ClassicSimilarity], result of:
              0.016582519 = score(doc=4767,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 4767, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=4767)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  10. Fugmann, R.; Winter, J.H.: Reverse retrieval : toward analogy inferences by mechanized classification (treatise 7 on retrieval system theory) (1979) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 4771) [ClassicSimilarity], result of:
              0.016582519 = score(doc=4771,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 4771, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=4771)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  11. Fugmann, R.; Denk, W.: Variations in the order-creating power of interactive retrieval systems : treatise 8 on retrieval system theory (1980) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 4772) [ClassicSimilarity], result of:
              0.016582519 = score(doc=4772,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 4772, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=4772)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  12. Fugmann, R.: ¬The complementarity of natural and indexing languages (1982) 0.00
    0.0027637533 = product of:
      0.0055275066 = sum of:
        0.0055275066 = product of:
          0.016582519 = sum of:
            0.016582519 = weight(_text_:e in 7648) [ClassicSimilarity], result of:
              0.016582519 = score(doc=7648,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2540935 = fieldWeight in 7648, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.125 = fieldNorm(doc=7648)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  13. Fugmann, R.: ¬The complementarity of natural and controlled languages in indexing (1995) 0.00
    0.0024428358 = product of:
      0.0048856717 = sum of:
        0.0048856717 = product of:
          0.014657014 = sum of:
            0.014657014 = weight(_text_:e in 1634) [ClassicSimilarity], result of:
              0.014657014 = score(doc=1634,freq=4.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.22458905 = fieldWeight in 1634, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.078125 = fieldNorm(doc=1634)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
    Source
    Subject indexing: principles and practices in the 90's. Proceedings of the IFLA Satellite Meeting Held in Lisbon, Portugal, 17-18 August 1993, and sponsored by the IFLA Section on Classification and Indexing and the Instituto da Biblioteca Nacional e do Livro, Lisbon, Portugal. Ed.: R.P. Holley et al
  14. Fugmann, R.; Kusemann, G.; Winter, H.J.: ¬The supply of information an chemical reactions in the IDC system (1979) 0.00
    0.0024182838 = product of:
      0.0048365677 = sum of:
        0.0048365677 = product of:
          0.014509703 = sum of:
            0.014509703 = weight(_text_:e in 1648) [ClassicSimilarity], result of:
              0.014509703 = score(doc=1648,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2223318 = fieldWeight in 1648, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1648)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  15. Fugmann, R.: On the role of subjectivity in establishing, using, operating and evaluating information retrieval systems : treatise 2 on information retrieval theory (1973) 0.00
    0.0024182838 = product of:
      0.0048365677 = sum of:
        0.0048365677 = product of:
          0.014509703 = sum of:
            0.014509703 = weight(_text_:e in 1673) [ClassicSimilarity], result of:
              0.014509703 = score(doc=1673,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2223318 = fieldWeight in 1673, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1673)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  16. Fugmann, R.: Concluding remarks (1996) 0.00
    0.0024182838 = product of:
      0.0048365677 = sum of:
        0.0048365677 = product of:
          0.014509703 = sum of:
            0.014509703 = weight(_text_:e in 5388) [ClassicSimilarity], result of:
              0.014509703 = score(doc=5388,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.2223318 = fieldWeight in 5388, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.109375 = fieldNorm(doc=5388)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  17. Fugmann, R.: ¬The complementarity of natural and indexing languages (1982) 0.00
    0.0020728149 = product of:
      0.0041456297 = sum of:
        0.0041456297 = product of:
          0.012436888 = sum of:
            0.012436888 = weight(_text_:e in 1008) [ClassicSimilarity], result of:
              0.012436888 = score(doc=1008,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.19057012 = fieldWeight in 1008, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1008)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  18. Fugmann, R.; Nickelsen, H.; Nickelsen, I.; Winter, J.H.: Representation of concept relations using the TOSAR system of IDC : treatise 3 on information retrieval theory (1974) 0.00
    0.0020728149 = product of:
      0.0041456297 = sum of:
        0.0041456297 = product of:
          0.012436888 = sum of:
            0.012436888 = weight(_text_:e in 1674) [ClassicSimilarity], result of:
              0.012436888 = score(doc=1674,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.19057012 = fieldWeight in 1674, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1674)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  19. Fugmann, R.: Learning the lessons of the past (2004) 0.00
    0.0017273457 = product of:
      0.0034546915 = sum of:
        0.0034546915 = product of:
          0.010364074 = sum of:
            0.010364074 = weight(_text_:e in 4169) [ClassicSimilarity], result of:
              0.010364074 = score(doc=4169,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.15880844 = fieldWeight in 4169, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4169)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e
  20. Fugmann, R.: On the practice of indexing and its theoretical foundations (1980) 0.00
    0.0013818766 = product of:
      0.0027637533 = sum of:
        0.0027637533 = product of:
          0.008291259 = sum of:
            0.008291259 = weight(_text_:e in 1679) [ClassicSimilarity], result of:
              0.008291259 = score(doc=1679,freq=2.0), product of:
                0.06526148 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0454034 = queryNorm
                0.12704675 = fieldWeight in 1679, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1679)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Language
    e