Document (#13088)

Author
Beghtol, C.
Title
¬L'¬efficacia del recupero
Source
Biblioteche oggi. 11(1993) nos.6/7, S.52-60
Year
1993
Abstract
Proposes a new experimental methodology for evaluating the results of library research from the user's viewpoint. Illustrates the theory by comparing the efficacy of information retrieved from 2 document catalogues, identical except that one is alphabetical and the other numerical/verbal. The methodology utilises the concept of 3 dependent variables: 'promising references retrieved' by the researcher; 'documents read'; and 'documents cited'. Claims that the retrieval effectiveness of the techniques outlined compares favourably with that of W.S. Cooper's methodology
Footnote
Retrieval effectiveness

Similar documents (author)

  1. Beghtol, C.: Access to fiction : A problem in classification theory and practice. Pt.1-2 (1989-90) 5.13
    5.1306934 = sum of:
      5.1306934 = weight(author_txt:beghtol in 909) [ClassicSimilarity], result of:
        5.1306934 = fieldWeight in 909, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.209109 = idf(docFreq=31, maxDocs=43254)
          0.625 = fieldNorm(doc=909)
    
  2. Beghtol, C.: Bibliographic classification theory and text linguistics : aboutness, analysis, intertextuality and the cognitive act of classifying documents (1986) 5.13
    5.1306934 = sum of:
      5.1306934 = weight(author_txt:beghtol in 1346) [ClassicSimilarity], result of:
        5.1306934 = fieldWeight in 1346, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.209109 = idf(docFreq=31, maxDocs=43254)
          0.625 = fieldNorm(doc=1346)
    
  3. Beghtol, C.: Domain analysis, literary warrant, and consensus : the case of fiction studies (1995) 5.13
    5.1306934 = sum of:
      5.1306934 = weight(author_txt:beghtol in 728) [ClassicSimilarity], result of:
        5.1306934 = fieldWeight in 728, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.209109 = idf(docFreq=31, maxDocs=43254)
          0.625 = fieldNorm(doc=728)
    
  4. Beghtol, C.: 'Facets' as interdisciplinary undiscovered public knowledge : S.R. Ranganathan in India and L. Guttman in Israel (1995) 5.13
    5.1306934 = sum of:
      5.1306934 = weight(author_txt:beghtol in 3286) [ClassicSimilarity], result of:
        5.1306934 = fieldWeight in 3286, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.209109 = idf(docFreq=31, maxDocs=43254)
          0.625 = fieldNorm(doc=3286)
    
  5. Beghtol, C.: Within, among, between : three faces of interdisciplinarity (1996) 5.13
    5.1306934 = sum of:
      5.1306934 = weight(author_txt:beghtol in 153) [ClassicSimilarity], result of:
        5.1306934 = fieldWeight in 153, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.209109 = idf(docFreq=31, maxDocs=43254)
          0.625 = fieldNorm(doc=153)
    

Similar documents (content)

  1. Veltman, K.: Thougths on the reorganization of knowledge (1983) 0.10
    0.09790672 = sum of:
      0.09790672 = product of:
        0.611917 = sum of:
          0.10069874 = weight(abstract_txt:outlined in 1542) [ClassicSimilarity], result of:
            0.10069874 = score(doc=1542,freq=1.0), product of:
              0.16396572 = queryWeight, product of:
                1.1278334 = boost
                6.550881 = idf(docFreq=167, maxDocs=43254)
                0.022192612 = queryNorm
              0.6141451 = fieldWeight in 1542, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.550881 = idf(docFreq=167, maxDocs=43254)
                0.09375 = fieldNorm(doc=1542)
          0.17460442 = weight(abstract_txt:verbal in 1542) [ClassicSimilarity], result of:
            0.17460442 = score(doc=1542,freq=2.0), product of:
              0.18782952 = queryWeight, product of:
                1.2071197 = boost
                7.011406 = idf(docFreq=105, maxDocs=43254)
                0.022192612 = queryNorm
              0.92958987 = fieldWeight in 1542, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.011406 = idf(docFreq=105, maxDocs=43254)
                0.09375 = fieldNorm(doc=1542)
          0.020627838 = weight(abstract_txt:that in 1542) [ClassicSimilarity], result of:
            0.020627838 = score(doc=1542,freq=2.0), product of:
              0.06522337 = queryWeight, product of:
                1.2320566 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.022192612 = queryNorm
              0.3162645 = fieldWeight in 1542, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.09375 = fieldNorm(doc=1542)
          0.315986 = weight(abstract_txt:numerical in 1542) [ClassicSimilarity], result of:
            0.315986 = score(doc=1542,freq=3.0), product of:
              0.24367362 = queryWeight, product of:
                1.3749049 = boost
                7.9859657 = idf(docFreq=39, maxDocs=43254)
                0.022192612 = queryNorm
              1.2967591 = fieldWeight in 1542, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.9859657 = idf(docFreq=39, maxDocs=43254)
                0.09375 = fieldNorm(doc=1542)
        0.16 = coord(4/25)
    
  2. Belter, C.W.: Citation analysis as a literature search method for systematic reviews (2016) 0.09
    0.08529224 = sum of:
      0.08529224 = product of:
        0.42646122 = sum of:
          0.05990615 = weight(abstract_txt:evaluating in 4623) [ClassicSimilarity], result of:
            0.05990615 = score(doc=4623,freq=1.0), product of:
              0.13097009 = queryWeight, product of:
                1.007986 = boost
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.022192612 = queryNorm
              0.4574033 = fieldWeight in 4623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.078125 = fieldNorm(doc=4623)
          0.06684898 = weight(abstract_txt:comparing in 4623) [ClassicSimilarity], result of:
            0.06684898 = score(doc=4623,freq=1.0), product of:
              0.14090325 = queryWeight, product of:
                1.0455117 = boost
                6.0727262 = idf(docFreq=270, maxDocs=43254)
                0.022192612 = queryNorm
              0.47443175 = fieldWeight in 4623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0727262 = idf(docFreq=270, maxDocs=43254)
                0.078125 = fieldNorm(doc=4623)
          0.0867959 = weight(abstract_txt:promising in 4623) [ClassicSimilarity], result of:
            0.0867959 = score(doc=4623,freq=1.0), product of:
              0.16769649 = queryWeight, product of:
                1.1405922 = boost
                6.624989 = idf(docFreq=155, maxDocs=43254)
                0.022192612 = queryNorm
              0.5175773 = fieldWeight in 4623, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.624989 = idf(docFreq=155, maxDocs=43254)
                0.078125 = fieldNorm(doc=4623)
          0.021053199 = weight(abstract_txt:that in 4623) [ClassicSimilarity], result of:
            0.021053199 = score(doc=4623,freq=3.0), product of:
              0.06522337 = queryWeight, product of:
                1.2320566 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.022192612 = queryNorm
              0.3227861 = fieldWeight in 4623, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.078125 = fieldNorm(doc=4623)
          0.191857 = weight(abstract_txt:retrieved in 4623) [ClassicSimilarity], result of:
            0.191857 = score(doc=4623,freq=3.0), product of:
              0.24858746 = queryWeight, product of:
                1.9639164 = boost
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.022192612 = queryNorm
              0.7717887 = fieldWeight in 4623, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.078125 = fieldNorm(doc=4623)
        0.2 = coord(5/25)
    
  3. Huuskonen, S.; Vakkari, P.: Students' search process and outcome in Medline in writing an essay for a class on evidence-based medicine (2008) 0.08
    0.08216914 = sum of:
      0.08216914 = product of:
        0.3423714 = sum of:
          0.041934304 = weight(abstract_txt:evaluating in 3892) [ClassicSimilarity], result of:
            0.041934304 = score(doc=3892,freq=1.0), product of:
              0.13097009 = queryWeight, product of:
                1.007986 = boost
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.022192612 = queryNorm
              0.3201823 = fieldWeight in 3892, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.854762 = idf(docFreq=336, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
          0.05200752 = weight(abstract_txt:variables in 3892) [ClassicSimilarity], result of:
            0.05200752 = score(doc=3892,freq=1.0), product of:
              0.15118311 = queryWeight, product of:
                1.082979 = boost
                6.29035 = idf(docFreq=217, maxDocs=43254)
                0.022192612 = queryNorm
              0.3440035 = fieldWeight in 3892, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.29035 = idf(docFreq=217, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
          0.012032906 = weight(abstract_txt:that in 3892) [ClassicSimilarity], result of:
            0.012032906 = score(doc=3892,freq=2.0), product of:
              0.06522337 = queryWeight, product of:
                1.2320566 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.022192612 = queryNorm
              0.18448763 = fieldWeight in 3892, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
          0.041220825 = weight(abstract_txt:documents in 3892) [ClassicSimilarity], result of:
            0.041220825 = score(doc=3892,freq=2.0), product of:
              0.12948027 = queryWeight, product of:
                1.4173764 = boost
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.022192612 = queryNorm
              0.31835604 = fieldWeight in 3892, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
          0.13429989 = weight(abstract_txt:retrieved in 3892) [ClassicSimilarity], result of:
            0.13429989 = score(doc=3892,freq=3.0), product of:
              0.24858746 = queryWeight, product of:
                1.9639164 = boost
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.022192612 = queryNorm
              0.5402521 = fieldWeight in 3892, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
          0.06087594 = weight(abstract_txt:methodology in 3892) [ClassicSimilarity], result of:
            0.06087594 = score(doc=3892,freq=1.0), product of:
              0.24217542 = queryWeight, product of:
                2.3740728 = boost
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.022192612 = queryNorm
              0.25137126 = fieldWeight in 3892, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.0546875 = fieldNorm(doc=3892)
        0.24 = coord(6/25)
    
  4. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985) 0.07
    0.07427326 = sum of:
      0.07427326 = product of:
        0.3094719 = sum of:
          0.044577878 = weight(abstract_txt:variables in 5644) [ClassicSimilarity], result of:
            0.044577878 = score(doc=5644,freq=1.0), product of:
              0.15118311 = queryWeight, product of:
                1.082979 = boost
                6.29035 = idf(docFreq=217, maxDocs=43254)
                0.022192612 = queryNorm
              0.29486015 = fieldWeight in 5644, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.29035 = idf(docFreq=217, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
          0.046878 = weight(abstract_txt:dependent in 5644) [ClassicSimilarity], result of:
            0.046878 = score(doc=5644,freq=1.0), product of:
              0.15633987 = queryWeight, product of:
                1.101294 = boost
                6.3967304 = idf(docFreq=195, maxDocs=43254)
                0.022192612 = queryNorm
              0.29984674 = fieldWeight in 5644, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.3967304 = idf(docFreq=195, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
          0.021879125 = weight(abstract_txt:that in 5644) [ClassicSimilarity], result of:
            0.021879125 = score(doc=5644,freq=9.0), product of:
              0.06522337 = queryWeight, product of:
                1.2320566 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.022192612 = queryNorm
              0.33544916 = fieldWeight in 5644, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
          0.049967185 = weight(abstract_txt:documents in 5644) [ClassicSimilarity], result of:
            0.049967185 = score(doc=5644,freq=4.0), product of:
              0.12948027 = queryWeight, product of:
                1.4173764 = boost
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.022192612 = queryNorm
              0.38590577 = fieldWeight in 5644, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
          0.09399035 = weight(abstract_txt:retrieved in 5644) [ClassicSimilarity], result of:
            0.09399035 = score(doc=5644,freq=2.0), product of:
              0.24858746 = queryWeight, product of:
                1.9639164 = boost
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.022192612 = queryNorm
              0.3780977 = fieldWeight in 5644, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
          0.052179378 = weight(abstract_txt:methodology in 5644) [ClassicSimilarity], result of:
            0.052179378 = score(doc=5644,freq=1.0), product of:
              0.24217542 = queryWeight, product of:
                2.3740728 = boost
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.022192612 = queryNorm
              0.21546109 = fieldWeight in 5644, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.046875 = fieldNorm(doc=5644)
        0.24 = coord(6/25)
    
  5. Hancock-Beaulieu, M.: Evaluating the impact of an online library catalogue on subject searching behaviour at the catalogue and at the shelves (1990) 0.07
    0.072289996 = sum of:
      0.072289996 = product of:
        0.36144996 = sum of:
          0.116402954 = weight(abstract_txt:verbal in 692) [ClassicSimilarity], result of:
            0.116402954 = score(doc=692,freq=2.0), product of:
              0.18782952 = queryWeight, product of:
                1.2071197 = boost
                7.011406 = idf(docFreq=105, maxDocs=43254)
                0.022192612 = queryNorm
              0.6197266 = fieldWeight in 692, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.011406 = idf(docFreq=105, maxDocs=43254)
                0.0625 = fieldNorm(doc=692)
          0.016842557 = weight(abstract_txt:that in 692) [ClassicSimilarity], result of:
            0.016842557 = score(doc=692,freq=3.0), product of:
              0.06522337 = queryWeight, product of:
                1.2320566 = boost
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.022192612 = queryNorm
              0.25822887 = fieldWeight in 692, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.3854163 = idf(docFreq=10822, maxDocs=43254)
                0.0625 = fieldNorm(doc=692)
          0.033311456 = weight(abstract_txt:documents in 692) [ClassicSimilarity], result of:
            0.033311456 = score(doc=692,freq=1.0), product of:
              0.12948027 = queryWeight, product of:
                1.4173764 = boost
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.022192612 = queryNorm
              0.25727051 = fieldWeight in 692, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1163282 = idf(docFreq=1916, maxDocs=43254)
                0.0625 = fieldNorm(doc=692)
          0.12532046 = weight(abstract_txt:retrieved in 692) [ClassicSimilarity], result of:
            0.12532046 = score(doc=692,freq=2.0), product of:
              0.24858746 = queryWeight, product of:
                1.9639164 = boost
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.022192612 = queryNorm
              0.5041303 = fieldWeight in 692, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7035832 = idf(docFreq=391, maxDocs=43254)
                0.0625 = fieldNorm(doc=692)
          0.06957251 = weight(abstract_txt:methodology in 692) [ClassicSimilarity], result of:
            0.06957251 = score(doc=692,freq=1.0), product of:
              0.24217542 = queryWeight, product of:
                2.3740728 = boost
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.022192612 = queryNorm
              0.28728145 = fieldWeight in 692, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5965033 = idf(docFreq=1185, maxDocs=43254)
                0.0625 = fieldNorm(doc=692)
        0.2 = coord(5/25)