Search (10 results, page 1 of 1)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1970 TO 1980}
  1. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.02 
    0.022407314 = product of:
  0.044814628 = sum of:
    0.044814628 = sum of:
      0.0039401366 = weight(_text_:s in 5002) [ClassicSimilarity], result of:
        0.0039401366 = score(doc=5002,freq=2.0), product of:
          0.04100075 = queryWeight, product of:
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.03771094 = queryNorm
          0.09609913 = fieldWeight in 5002, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.0872376 = idf(docFreq=40523, maxDocs=44218)
            0.0625 = fieldNorm(doc=5002)
      0.040874492 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
        0.040874492 = score(doc=5002,freq=2.0), product of:
          0.13205728 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.03771094 = queryNorm
          0.30952093 = fieldWeight in 5002, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0625 = fieldNorm(doc=5002)
  0.5 = coord(1/2)
    Date
    19. 3.1996 11:22:12
    Source
    Journal of documentation. 29(1973) no.3, S.251-257
  2. Rijsbergen, C.J. van: Foundations of evaluation (1974) 0.00 
    0.0024625852 = product of:
  0.0049251704 = sum of:
    0.0049251704 = product of:
      0.009850341 = sum of:
        0.009850341 = weight(_text_:s in 1078) [ClassicSimilarity], result of:
          0.009850341 = score(doc=1078,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.24024783 = fieldWeight in 1078, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.15625 = fieldNorm(doc=1078)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 30(1974), S.365-373
  3. Cooper, W.S.: ¬On selecting a measure of retrieval effectiveness, revisited (1973) 0.00 
    0.002089573 = product of:
  0.004179146 = sum of:
    0.004179146 = product of:
      0.008358292 = sum of:
        0.008358292 = weight(_text_:s in 1930) [ClassicSimilarity], result of:
          0.008358292 = score(doc=1930,freq=4.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.20385705 = fieldWeight in 1930, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=1930)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann 1997. S.191-204.
    Source
    Journal of the American Society for Information Science. 24(1973), S.87-100
  4. Harter, S.P.: ¬The Cranfield II relevance assessments : a critical evaluation (1971) 0.00 
    0.0019700683 = product of:
  0.0039401366 = sum of:
    0.0039401366 = product of:
      0.007880273 = sum of:
        0.007880273 = weight(_text_:s in 5364) [ClassicSimilarity], result of:
          0.007880273 = score(doc=5364,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.19219826 = fieldWeight in 5364, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=5364)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Library quarterly. 41(1971), S.223-228
  5. Cooper, W.S.: ¬The paradoxal role of unexamined documents in the evaluation of retrieval effectiveness (1976) 0.00 
    0.0019700683 = product of:
  0.0039401366 = sum of:
    0.0039401366 = product of:
      0.007880273 = sum of:
        0.007880273 = weight(_text_:s in 2186) [ClassicSimilarity], result of:
          0.007880273 = score(doc=2186,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.19219826 = fieldWeight in 2186, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=2186)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 12(1976), S.367-375
  6. McGill, M.J.; Huitfeldt, J.: Experimental techniques of information retrieval (1979) 0.00 
    0.0017238096 = product of:
  0.0034476193 = sum of:
    0.0034476193 = product of:
      0.0068952385 = sum of:
        0.0068952385 = weight(_text_:s in 279) [ClassicSimilarity], result of:
          0.0068952385 = score(doc=279,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.16817348 = fieldWeight in 279, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.109375 = fieldNorm(doc=279)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Annual review of information science and technology. 14(1979), S.93-128
  7. King, D.W.; Bryant, E.C.: ¬The evaluation of information services and products (1971) 0.00 
    0.0012312926 = product of:
  0.0024625852 = sum of:
    0.0024625852 = product of:
      0.0049251704 = sum of:
        0.0049251704 = weight(_text_:s in 4157) [ClassicSimilarity], result of:
          0.0049251704 = score(doc=4157,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.120123915 = fieldWeight in 4157, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=4157)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    306 S
  8. Byrne, J.R.: Relative effectiveness of titles, abstracts, and subject headings for machine retrieval from the COMPENDEX services (1975) 0.00 
    8.619048E-4 = product of:
  0.0017238096 = sum of:
    0.0017238096 = product of:
      0.0034476193 = sum of:
        0.0034476193 = weight(_text_:s in 1604) [ClassicSimilarity], result of:
          0.0034476193 = score(doc=1604,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.08408674 = fieldWeight in 1604, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1604)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science. 26(1975), S.223-229
  9. Sparck Jones, K.; Rijsbergen, C.J. van: Progress in documentation : Information retrieval test collection (1976) 0.00 
    8.619048E-4 = product of:
  0.0017238096 = sum of:
    0.0017238096 = product of:
      0.0034476193 = sum of:
        0.0034476193 = weight(_text_:s in 4161) [ClassicSimilarity], result of:
          0.0034476193 = score(doc=4161,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.08408674 = fieldWeight in 4161, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4161)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 32(1976) no.1, S.59-75
  10. Bhattacharyya, K.: ¬The effectiveness of natural language in science indexing and retrieval (1974) 0.00 
    7.387756E-4 = product of:
  0.0014775512 = sum of:
    0.0014775512 = product of:
      0.0029551024 = sum of:
        0.0029551024 = weight(_text_:s in 2628) [ClassicSimilarity], result of:
          0.0029551024 = score(doc=2628,freq=2.0), product of:
            0.04100075 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.03771094 = queryNorm
            0.072074346 = fieldWeight in 2628, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=2628)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of documentation. 30(1974), S.235-254

Authors

Types