Document (#2337)

Author
Swanson, D.R.
Title
Some unexplained aspects of the Cranfield tests of indexing performance factors
Source
Library quarterly. 41(1971), S.223-228
Year
1971
Theme
Indexierungsstudien

Similar documents (author)

  1. Swanson, D.R.: Searching natural language by computer (1960) 5.19
    5.187669 = sum of:
      5.187669 = weight(author_txt:swanson in 402) [ClassicSimilarity], result of:
        5.187669 = fieldWeight in 402, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.30027 = idf(docFreq=29, maxDocs=44421)
          0.625 = fieldNorm(doc=402)
    
  2. Swanson, D.R.: Requirements study for future catalogs (1972) 5.19
    5.187669 = sum of:
      5.187669 = weight(author_txt:swanson in 679) [ClassicSimilarity], result of:
        5.187669 = fieldWeight in 679, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.30027 = idf(docFreq=29, maxDocs=44421)
          0.625 = fieldNorm(doc=679)
    
  3. Swanson, D.R.: Subjective versus objective relevance in bibliographic retrieval systems (1986) 5.19
    5.187669 = sum of:
      5.187669 = weight(author_txt:swanson in 837) [ClassicSimilarity], result of:
        5.187669 = fieldWeight in 837, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.30027 = idf(docFreq=29, maxDocs=44421)
          0.625 = fieldNorm(doc=837)
    
  4. Swanson, D.R.: Information retrieval as a trial-and-error process (1977) 5.19
    5.187669 = sum of:
      5.187669 = weight(author_txt:swanson in 1290) [ClassicSimilarity], result of:
        5.187669 = fieldWeight in 1290, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.30027 = idf(docFreq=29, maxDocs=44421)
          0.625 = fieldNorm(doc=1290)
    
  5. Swanson, D.R.: ¬The evidence underlying the Cranfield results (1965) 5.19
    5.187669 = sum of:
      5.187669 = weight(author_txt:swanson in 2265) [ClassicSimilarity], result of:
        5.187669 = fieldWeight in 2265, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.30027 = idf(docFreq=29, maxDocs=44421)
          0.625 = fieldNorm(doc=2265)
    

Similar documents (content)

  1. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985) 0.68
    0.6829372 = sum of:
      0.6829372 = product of:
        1.19514 = sum of:
          0.113648266 = weight(abstract_txt:indexing in 4643) [ClassicSimilarity], result of:
            0.113648266 = score(doc=4643,freq=7.0), product of:
              0.21064559 = queryWeight, product of:
                1.1826086 = boost
                4.3503094 = idf(docFreq=1557, maxDocs=44421)
                0.040944085 = queryNorm
              0.5395236 = fieldWeight in 4643, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.3503094 = idf(docFreq=1557, maxDocs=44421)
                0.046875 = fieldNorm(doc=4643)
          0.05144123 = weight(abstract_txt:performance in 4643) [ClassicSimilarity], result of:
            0.05144123 = score(doc=4643,freq=1.0), product of:
              0.23754764 = queryWeight, product of:
                1.2558571 = boost
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.040944085 = queryNorm
              0.21655121 = fieldWeight in 4643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.046875 = fieldNorm(doc=4643)
          0.063429326 = weight(abstract_txt:factors in 4643) [ClassicSimilarity], result of:
            0.063429326 = score(doc=4643,freq=1.0), product of:
              0.27315128 = queryWeight, product of:
                1.3466864 = boost
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.040944085 = queryNorm
              0.23221318 = fieldWeight in 4643, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.046875 = fieldNorm(doc=4643)
          0.9666212 = weight(abstract_txt:cranfield in 4643) [ClassicSimilarity], result of:
            0.9666212 = score(doc=4643,freq=11.0), product of:
              0.754947 = queryWeight, product of:
                2.23884 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.040944085 = queryNorm
              1.2803829 = fieldWeight in 4643, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.046875 = fieldNorm(doc=4643)
        0.5714286 = coord(4/7)
    
  2. Gillman, P.: Text retrieval (1998) 0.43
    0.43453473 = sum of:
      0.43453473 = product of:
        1.0139143 = sum of:
          0.06059928 = weight(abstract_txt:some in 2502) [ClassicSimilarity], result of:
            0.06059928 = score(doc=2502,freq=1.0), product of:
              0.1506157 = queryWeight, product of:
                3.6785707 = idf(docFreq=3049, maxDocs=44421)
                0.040944085 = queryNorm
              0.4023437 = fieldWeight in 2502, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6785707 = idf(docFreq=3049, maxDocs=44421)
                0.109375 = fieldNorm(doc=2502)
          0.27327153 = weight(abstract_txt:tests in 2502) [ClassicSimilarity], result of:
            0.27327153 = score(doc=2502,freq=1.0), product of:
              0.41110703 = queryWeight, product of:
                1.6521227 = boost
                6.0774503 = idf(docFreq=276, maxDocs=44421)
                0.040944085 = queryNorm
              0.66472113 = fieldWeight in 2502, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0774503 = idf(docFreq=276, maxDocs=44421)
                0.109375 = fieldNorm(doc=2502)
          0.6800436 = weight(abstract_txt:cranfield in 2502) [ClassicSimilarity], result of:
            0.6800436 = score(doc=2502,freq=1.0), product of:
              0.754947 = queryWeight, product of:
                2.23884 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.040944085 = queryNorm
              0.9007832 = fieldWeight in 2502, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.109375 = fieldNorm(doc=2502)
        0.42857143 = coord(3/7)
    
  3. Dubois, C.P.R.: Text retrieval 92 : summary of papers and trends (1993) 0.39
    0.39499944 = sum of:
      0.39499944 = product of:
        0.691249 = sum of:
          0.10022835 = weight(abstract_txt:indexing in 6254) [ClassicSimilarity], result of:
            0.10022835 = score(doc=6254,freq=1.0), product of:
              0.21064559 = queryWeight, product of:
                1.1826086 = boost
                4.3503094 = idf(docFreq=1557, maxDocs=44421)
                0.040944085 = queryNorm
              0.4758151 = fieldWeight in 6254, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3503094 = idf(docFreq=1557, maxDocs=44421)
                0.109375 = fieldNorm(doc=6254)
          0.16974738 = weight(abstract_txt:performance in 6254) [ClassicSimilarity], result of:
            0.16974738 = score(doc=6254,freq=2.0), product of:
              0.23754764 = queryWeight, product of:
                1.2558571 = boost
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.040944085 = queryNorm
              0.7145825 = fieldWeight in 6254, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.619759 = idf(docFreq=1189, maxDocs=44421)
                0.109375 = fieldNorm(doc=6254)
          0.14800178 = weight(abstract_txt:factors in 6254) [ClassicSimilarity], result of:
            0.14800178 = score(doc=6254,freq=1.0), product of:
              0.27315128 = queryWeight, product of:
                1.3466864 = boost
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.040944085 = queryNorm
              0.5418308 = fieldWeight in 6254, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.109375 = fieldNorm(doc=6254)
          0.27327153 = weight(abstract_txt:tests in 6254) [ClassicSimilarity], result of:
            0.27327153 = score(doc=6254,freq=1.0), product of:
              0.41110703 = queryWeight, product of:
                1.6521227 = boost
                6.0774503 = idf(docFreq=276, maxDocs=44421)
                0.040944085 = queryNorm
              0.66472113 = fieldWeight in 6254, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.0774503 = idf(docFreq=276, maxDocs=44421)
                0.109375 = fieldNorm(doc=6254)
        0.5714286 = coord(4/7)
    
  4. Voorhees, E.M.: On test collections for adaptive information retrieval (2008) 0.38
    0.37703028 = sum of:
      0.37703028 = product of:
        0.8797373 = sum of:
          0.043285195 = weight(abstract_txt:some in 3444) [ClassicSimilarity], result of:
            0.043285195 = score(doc=3444,freq=1.0), product of:
              0.1506157 = queryWeight, product of:
                3.6785707 = idf(docFreq=3049, maxDocs=44421)
                0.040944085 = queryNorm
              0.28738832 = fieldWeight in 3444, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6785707 = idf(docFreq=3049, maxDocs=44421)
                0.078125 = fieldNorm(doc=3444)
          0.14950435 = weight(abstract_txt:factors in 3444) [ClassicSimilarity], result of:
            0.14950435 = score(doc=3444,freq=2.0), product of:
              0.27315128 = queryWeight, product of:
                1.3466864 = boost
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.040944085 = queryNorm
              0.5473317 = fieldWeight in 3444, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9538813 = idf(docFreq=851, maxDocs=44421)
                0.078125 = fieldNorm(doc=3444)
          0.68694776 = weight(abstract_txt:cranfield in 3444) [ClassicSimilarity], result of:
            0.68694776 = score(doc=3444,freq=2.0), product of:
              0.754947 = queryWeight, product of:
                2.23884 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.040944085 = queryNorm
              0.90992844 = fieldWeight in 3444, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.078125 = fieldNorm(doc=3444)
        0.42857143 = coord(3/7)
    
  5. Keen, M.: Cyril W. Cleverdon (1998) 0.28
    0.27756882 = sum of:
      0.27756882 = product of:
        1.9429817 = sum of:
          1.9429817 = weight(abstract_txt:cranfield in 2059) [ClassicSimilarity], result of:
            1.9429817 = score(doc=2059,freq=1.0), product of:
              0.754947 = queryWeight, product of:
                2.23884 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.040944085 = queryNorm
              2.5736663 = fieldWeight in 2059, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.3125 = fieldNorm(doc=2059)
        0.14285715 = coord(1/7)