Document (#12215)

Author
Robertson, S.E.
Title
¬The methodology of information retrieval experiment
Source
Information retrieval experiment. Ed.: K. Sparck Jones
Imprint
London : Butterworths
Year
1981
Pages
S.9-31
Theme
Retrievalstudien

Similar documents (author)

  1. Robertson, M.A.: Windows 3.0 for the online searcher (1991) 4.57
    4.574651 = sum of:
      4.574651 = weight(author_txt:robertson in 591) [ClassicSimilarity], result of:
        4.574651 = fieldWeight in 591, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.319441 = idf(docFreq=79, maxDocs=44421)
          0.625 = fieldNorm(doc=591)
    
  2. Robertson, S.E.: Some recent theories and models in information retrieval (1980) 4.57
    4.574651 = sum of:
      4.574651 = weight(author_txt:robertson in 1325) [ClassicSimilarity], result of:
        4.574651 = fieldWeight in 1325, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.319441 = idf(docFreq=79, maxDocs=44421)
          0.625 = fieldNorm(doc=1325)
    
  3. Robertson, S.E.: Theories and models in information retrieval (1977) 4.57
    4.574651 = sum of:
      4.574651 = weight(author_txt:robertson in 1843) [ClassicSimilarity], result of:
        4.574651 = fieldWeight in 1843, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.319441 = idf(docFreq=79, maxDocs=44421)
          0.625 = fieldNorm(doc=1843)
    
  4. Robertson, S.E.: On term selection for query expansion (1990) 4.57
    4.574651 = sum of:
      4.574651 = weight(author_txt:robertson in 2649) [ClassicSimilarity], result of:
        4.574651 = fieldWeight in 2649, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.319441 = idf(docFreq=79, maxDocs=44421)
          0.625 = fieldNorm(doc=2649)
    
  5. Robertson, S.E.: On relevance weight estimation and query expansion (1986) 4.57
    4.574651 = sum of:
      4.574651 = weight(author_txt:robertson in 3874) [ClassicSimilarity], result of:
        4.574651 = fieldWeight in 3874, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.319441 = idf(docFreq=79, maxDocs=44421)
          0.625 = fieldNorm(doc=3874)
    

Similar documents (content)

  1. Warner, J.: Retrieval performance tests in relation to online bibliographic searching (1992) 0.90
    0.90391034 = sum of:
      0.90391034 = product of:
        1.2052138 = sum of:
          0.09255095 = weight(abstract_txt:information in 4521) [ClassicSimilarity], result of:
            0.09255095 = score(doc=4521,freq=2.0), product of:
              0.1442935 = queryWeight, product of:
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.05965254 = queryNorm
              0.6414076 = fieldWeight in 4521, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4188995 = idf(docFreq=10748, maxDocs=44421)
                0.1875 = fieldNorm(doc=4521)
          0.27476037 = weight(abstract_txt:retrieval in 4521) [ClassicSimilarity], result of:
            0.27476037 = score(doc=4521,freq=2.0), product of:
              0.29805443 = queryWeight, product of:
                1.4372238 = boost
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.05965254 = queryNorm
              0.9218463 = fieldWeight in 4521, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4765 = idf(docFreq=3732, maxDocs=44421)
                0.1875 = fieldNorm(doc=4521)
          0.8379024 = weight(abstract_txt:experiment in 4521) [ClassicSimilarity], result of:
            0.8379024 = score(doc=4521,freq=1.0), product of:
              0.78970546 = queryWeight, product of:
                2.3394253 = boost
                5.658835 = idf(docFreq=420, maxDocs=44421)
                0.05965254 = queryNorm
              1.0610316 = fieldWeight in 4521, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.658835 = idf(docFreq=420, maxDocs=44421)
                0.1875 = fieldNorm(doc=4521)
        0.75 = coord(3/4)
    
  2. Meadow, C.T.: Speculations on the measurement and use of user characteristics in information retrieval experimentation (1994) 0.79
    0.7943302 = sum of:
      0.7943302 = sum of:
        0.056675646 = weight(abstract_txt:information in 1863) [ClassicSimilarity], result of:
          0.056675646 = score(doc=1863,freq=3.0), product of:
            0.1442935 = queryWeight, product of:
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.05965254 = queryNorm
            0.3927803 = fieldWeight in 1863, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.09375 = fieldNorm(doc=1863)
        0.097142465 = weight(abstract_txt:retrieval in 1863) [ClassicSimilarity], result of:
          0.097142465 = score(doc=1863,freq=1.0), product of:
            0.29805443 = queryWeight, product of:
              1.4372238 = boost
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.05965254 = queryNorm
            0.3259219 = fieldWeight in 1863, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.09375 = fieldNorm(doc=1863)
        0.22156084 = weight(abstract_txt:methodology in 1863) [ClassicSimilarity], result of:
          0.22156084 = score(doc=1863,freq=1.0), product of:
            0.516438 = queryWeight, product of:
              1.8918457 = boost
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.05965254 = queryNorm
            0.4290173 = fieldWeight in 1863, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.09375 = fieldNorm(doc=1863)
        0.4189512 = weight(abstract_txt:experiment in 1863) [ClassicSimilarity], result of:
          0.4189512 = score(doc=1863,freq=1.0), product of:
            0.78970546 = queryWeight, product of:
              2.3394253 = boost
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.05965254 = queryNorm
            0.5305158 = fieldWeight in 1863, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.09375 = fieldNorm(doc=1863)
    
  3. Scale, M.-S.: Facebook as a social search engine and the implications for libraries in the twenty-first century (2008) 0.71
    0.7125843 = sum of:
      0.7125843 = sum of:
        0.057715654 = weight(abstract_txt:information in 3608) [ClassicSimilarity], result of:
          0.057715654 = score(doc=3608,freq=7.0), product of:
            0.1442935 = queryWeight, product of:
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.05965254 = queryNorm
            0.3999879 = fieldWeight in 3608, product of:
              2.6457512 = tf(freq=7.0), with freq of:
                7.0 = termFreq=7.0
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.0625 = fieldNorm(doc=3608)
        0.11217044 = weight(abstract_txt:retrieval in 3608) [ClassicSimilarity], result of:
          0.11217044 = score(doc=3608,freq=3.0), product of:
            0.29805443 = queryWeight, product of:
              1.4372238 = boost
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.05965254 = queryNorm
            0.37634215 = fieldWeight in 3608, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.0625 = fieldNorm(doc=3608)
        0.14770724 = weight(abstract_txt:methodology in 3608) [ClassicSimilarity], result of:
          0.14770724 = score(doc=3608,freq=1.0), product of:
            0.516438 = queryWeight, product of:
              1.8918457 = boost
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.05965254 = queryNorm
            0.28601155 = fieldWeight in 3608, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.0625 = fieldNorm(doc=3608)
        0.39499098 = weight(abstract_txt:experiment in 3608) [ClassicSimilarity], result of:
          0.39499098 = score(doc=3608,freq=2.0), product of:
            0.78970546 = queryWeight, product of:
              2.3394253 = boost
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.05965254 = queryNorm
            0.50017506 = fieldWeight in 3608, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.0625 = fieldNorm(doc=3608)
    
  4. Cleverdon, C.W.; Mills, J.: ¬The testing of index language devices (1985) 0.66
    0.6614779 = sum of:
      0.6614779 = sum of:
        0.023137737 = weight(abstract_txt:information in 4643) [ClassicSimilarity], result of:
          0.023137737 = score(doc=4643,freq=2.0), product of:
            0.1442935 = queryWeight, product of:
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.05965254 = queryNorm
            0.1603519 = fieldWeight in 4643, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.046875 = fieldNorm(doc=4643)
        0.10860857 = weight(abstract_txt:retrieval in 4643) [ClassicSimilarity], result of:
          0.10860857 = score(doc=4643,freq=5.0), product of:
            0.29805443 = queryWeight, product of:
              1.4372238 = boost
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.05965254 = queryNorm
            0.36439174 = fieldWeight in 4643, product of:
              2.236068 = tf(freq=5.0), with freq of:
                5.0 = termFreq=5.0
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.046875 = fieldNorm(doc=4643)
        0.11078042 = weight(abstract_txt:methodology in 4643) [ClassicSimilarity], result of:
          0.11078042 = score(doc=4643,freq=1.0), product of:
            0.516438 = queryWeight, product of:
              1.8918457 = boost
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.05965254 = queryNorm
            0.21450865 = fieldWeight in 4643, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.046875 = fieldNorm(doc=4643)
        0.4189512 = weight(abstract_txt:experiment in 4643) [ClassicSimilarity], result of:
          0.4189512 = score(doc=4643,freq=4.0), product of:
            0.78970546 = queryWeight, product of:
              2.3394253 = boost
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.05965254 = queryNorm
            0.5305158 = fieldWeight in 4643, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.046875 = fieldNorm(doc=4643)
    
  5. Järvelin, K.; Vakkari, P.: LIS research across 50 years: content analysis of journal articles : offering an information-centric conception of memes (2022) 0.63
    0.6307492 = sum of:
      0.6307492 = sum of:
        0.030850315 = weight(abstract_txt:information in 1950) [ClassicSimilarity], result of:
          0.030850315 = score(doc=1950,freq=2.0), product of:
            0.1442935 = queryWeight, product of:
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.05965254 = queryNorm
            0.21380253 = fieldWeight in 1950, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4188995 = idf(docFreq=10748, maxDocs=44421)
              0.0625 = fieldNorm(doc=1950)
        0.06476164 = weight(abstract_txt:retrieval in 1950) [ClassicSimilarity], result of:
          0.06476164 = score(doc=1950,freq=1.0), product of:
            0.29805443 = queryWeight, product of:
              1.4372238 = boost
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.05965254 = queryNorm
            0.21728125 = fieldWeight in 1950, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              3.4765 = idf(docFreq=3732, maxDocs=44421)
              0.0625 = fieldNorm(doc=1950)
        0.25583643 = weight(abstract_txt:methodology in 1950) [ClassicSimilarity], result of:
          0.25583643 = score(doc=1950,freq=3.0), product of:
            0.516438 = queryWeight, product of:
              1.8918457 = boost
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.05965254 = queryNorm
            0.4953865 = fieldWeight in 1950, product of:
              1.7320508 = tf(freq=3.0), with freq of:
                3.0 = termFreq=3.0
              4.5761847 = idf(docFreq=1242, maxDocs=44421)
              0.0625 = fieldNorm(doc=1950)
        0.2793008 = weight(abstract_txt:experiment in 1950) [ClassicSimilarity], result of:
          0.2793008 = score(doc=1950,freq=1.0), product of:
            0.78970546 = queryWeight, product of:
              2.3394253 = boost
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.05965254 = queryNorm
            0.35367718 = fieldWeight in 1950, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              5.658835 = idf(docFreq=420, maxDocs=44421)
              0.0625 = fieldNorm(doc=1950)