Search (11 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × type_ss:"a"
  • × year_i:[1960 TO 1970}
  1. Salton, G.; Lesk, M.E.: Computer evaluation of indexing and text processing (1968) 0.06
    0.05576241 = product of:
      0.11152482 = sum of:
        0.0090247495 = weight(_text_:e in 77) [ClassicSimilarity], result of:
          0.0090247495 = score(doc=77,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.19057012 = fieldWeight in 77, 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=77)
        0.046835296 = weight(_text_:u in 77) [ClassicSimilarity], result of:
          0.046835296 = score(doc=77,freq=2.0), product of:
            0.107882105 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03294669 = queryNorm
            0.43413407 = fieldWeight in 77, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.09375 = fieldNorm(doc=77)
        0.055664778 = weight(_text_:k in 77) [ClassicSimilarity], result of:
          0.055664778 = score(doc=77,freq=2.0), product of:
            0.11761237 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.03294669 = queryNorm
            0.47329018 = fieldWeight in 77, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=77)
      0.5 = coord(3/6)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.60-84.
    Language
    e
  2. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1963) 0.06
    0.05576241 = product of:
      0.11152482 = sum of:
        0.0090247495 = weight(_text_:e in 577) [ClassicSimilarity], result of:
          0.0090247495 = score(doc=577,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.19057012 = fieldWeight in 577, 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=577)
        0.046835296 = weight(_text_:u in 577) [ClassicSimilarity], result of:
          0.046835296 = score(doc=577,freq=2.0), product of:
            0.107882105 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03294669 = queryNorm
            0.43413407 = fieldWeight in 577, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.09375 = fieldNorm(doc=577)
        0.055664778 = weight(_text_:k in 577) [ClassicSimilarity], result of:
          0.055664778 = score(doc=577,freq=2.0), product of:
            0.11761237 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.03294669 = queryNorm
            0.47329018 = fieldWeight in 577, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=577)
      0.5 = coord(3/6)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.98-110.
    Language
    e
  3. Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961) 0.06
    0.05576241 = product of:
      0.11152482 = sum of:
        0.0090247495 = weight(_text_:e in 1931) [ClassicSimilarity], result of:
          0.0090247495 = score(doc=1931,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.19057012 = fieldWeight in 1931, 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=1931)
        0.046835296 = weight(_text_:u in 1931) [ClassicSimilarity], result of:
          0.046835296 = score(doc=1931,freq=2.0), product of:
            0.107882105 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.03294669 = queryNorm
            0.43413407 = fieldWeight in 1931, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.09375 = fieldNorm(doc=1931)
        0.055664778 = weight(_text_:k in 1931) [ClassicSimilarity], result of:
          0.055664778 = score(doc=1931,freq=2.0), product of:
            0.11761237 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.03294669 = queryNorm
            0.47329018 = fieldWeight in 1931, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.09375 = fieldNorm(doc=1931)
      0.5 = coord(3/6)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.223-246.
    Language
    e
  4. Blagden, J.F.: How much noise in a role-free and link-free co-ordinate indexing system? (1966) 0.01
    0.0052266745 = product of:
      0.015680023 = sum of:
        0.0052644373 = weight(_text_:e in 2718) [ClassicSimilarity], result of:
          0.0052644373 = score(doc=2718,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.1111659 = fieldWeight in 2718, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2718)
        0.010415585 = product of:
          0.031246753 = sum of:
            0.031246753 = weight(_text_:22 in 2718) [ClassicSimilarity], result of:
              0.031246753 = score(doc=2718,freq=2.0), product of:
                0.1153737 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03294669 = queryNorm
                0.2708308 = fieldWeight in 2718, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2718)
          0.33333334 = coord(1/3)
      0.33333334 = coord(2/6)
    
    Language
    e
    Source
    Journal of documentation. 22(1966), S.203-209
  5. Brookes, B.C.: ¬The measure of information retrieval effectiveness proposed by Swets (1968) 0.00
    0.0020055 = product of:
      0.012033 = sum of:
        0.012033 = weight(_text_:e in 3301) [ClassicSimilarity], result of:
          0.012033 = score(doc=3301,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.2540935 = fieldWeight in 3301, 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=3301)
      0.16666667 = coord(1/6)
    
    Language
    e
  6. Treu, S.: ¬The browser's retrieval game (1968) 0.00
    0.0020055 = product of:
      0.012033 = sum of:
        0.012033 = weight(_text_:e in 7522) [ClassicSimilarity], result of:
          0.012033 = score(doc=7522,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.2540935 = fieldWeight in 7522, 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=7522)
      0.16666667 = coord(1/6)
    
    Language
    e
  7. Lancaster, F.W.: On the need for role indicators in postcoordinate retrieval systems (1968) 0.00
    0.00100275 = product of:
      0.0060165 = sum of:
        0.0060165 = weight(_text_:e in 8948) [ClassicSimilarity], result of:
          0.0060165 = score(doc=8948,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.12704675 = fieldWeight in 8948, 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=8948)
      0.16666667 = coord(1/6)
    
    Language
    e
  8. Lesk, M.E.; Salton, G.: Relevance assements and retrieval system evaluation (1969) 0.00
    8.774062E-4 = product of:
      0.0052644373 = sum of:
        0.0052644373 = weight(_text_:e in 4151) [ClassicSimilarity], result of:
          0.0052644373 = score(doc=4151,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.1111659 = fieldWeight in 4151, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4151)
      0.16666667 = coord(1/6)
    
    Language
    e
  9. Robertson, S.E.: ¬The parametric description of retrieval tests : Part I: The basic parameters (1969) 0.00
    8.774062E-4 = product of:
      0.0052644373 = sum of:
        0.0052644373 = weight(_text_:e in 4155) [ClassicSimilarity], result of:
          0.0052644373 = score(doc=4155,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.1111659 = fieldWeight in 4155, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4155)
      0.16666667 = coord(1/6)
    
    Language
    e
  10. Robertson, S.E.: ¬The parametric description of retrieval tests : Part II: Overall measures (1969) 0.00
    8.774062E-4 = product of:
      0.0052644373 = sum of:
        0.0052644373 = weight(_text_:e in 4156) [ClassicSimilarity], result of:
          0.0052644373 = score(doc=4156,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.1111659 = fieldWeight in 4156, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4156)
      0.16666667 = coord(1/6)
    
    Language
    e
  11. Good, I.J.: ¬The decision-theory approach to the evaluation of information-retrieval systems (1967) 0.00
    7.520625E-4 = product of:
      0.0045123748 = sum of:
        0.0045123748 = weight(_text_:e in 4154) [ClassicSimilarity], result of:
          0.0045123748 = score(doc=4154,freq=2.0), product of:
            0.047356583 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.03294669 = queryNorm
            0.09528506 = fieldWeight in 4154, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=4154)
      0.16666667 = coord(1/6)
    
    Language
    e