Document (#12226)

Author
Sparck Jones, K.
Title
Retrieval system tests 1958-1978
Source
Information retrieval experiment. Ed.: K. Sparck Jones
Imprint
London : Butterworths
Year
1981
Pages
S.213-255
Theme
Retrievalstudien

Similar documents (author)

  1. Sparck Jones, K.: Fashionable trends and feasible strategies in information management (1988) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 817) [ClassicSimilarity], result of:
          2.0544336 = score(doc=817,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 817, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.5 = fieldNorm(doc=817)
        3.2568877 = weight(author_txt:sparck in 817) [ClassicSimilarity], result of:
          3.2568877 = score(doc=817,freq=1.0), product of:
            0.80556524 = queryWeight, product of:
              1.1660135 = boost
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.085440755 = queryNorm
            4.0429845 = fieldWeight in 817, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.5 = fieldNorm(doc=817)
    
  2. Sparck Jones, K.: Automatic classification (1976) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 2908) [ClassicSimilarity], result of:
          2.0544336 = score(doc=2908,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 2908, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.5 = fieldNorm(doc=2908)
        3.2568877 = weight(author_txt:sparck in 2908) [ClassicSimilarity], result of:
          3.2568877 = score(doc=2908,freq=1.0), product of:
            0.80556524 = queryWeight, product of:
              1.1660135 = boost
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.085440755 = queryNorm
            4.0429845 = fieldWeight in 2908, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.5 = fieldNorm(doc=2908)
    
  3. Sparck Jones, K.: ¬The role of artificial intelligence in information retrieval (1991) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 4811) [ClassicSimilarity], result of:
          2.0544336 = score(doc=4811,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 4811, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.5 = fieldNorm(doc=4811)
        3.2568877 = weight(author_txt:sparck in 4811) [ClassicSimilarity], result of:
          3.2568877 = score(doc=4811,freq=1.0), product of:
            0.80556524 = queryWeight, product of:
              1.1660135 = boost
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.085440755 = queryNorm
            4.0429845 = fieldWeight in 4811, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.5 = fieldNorm(doc=4811)
    
  4. Sparck Jones, K.: Automatic keyword classification for information retrieval (1971) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 5176) [ClassicSimilarity], result of:
          2.0544336 = score(doc=5176,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 5176, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.5 = fieldNorm(doc=5176)
        3.2568877 = weight(author_txt:sparck in 5176) [ClassicSimilarity], result of:
          3.2568877 = score(doc=5176,freq=1.0), product of:
            0.80556524 = queryWeight, product of:
              1.1660135 = boost
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.085440755 = queryNorm
            4.0429845 = fieldWeight in 5176, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.5 = fieldNorm(doc=5176)
    
  5. Sparck Jones, K.: ¬A statistical interpretation of term specifity and its application in retrieval (1972) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 5187) [ClassicSimilarity], result of:
          2.0544336 = score(doc=5187,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 5187, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.5 = fieldNorm(doc=5187)
        3.2568877 = weight(author_txt:sparck in 5187) [ClassicSimilarity], result of:
          3.2568877 = score(doc=5187,freq=1.0), product of:
            0.80556524 = queryWeight, product of:
              1.1660135 = boost
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.085440755 = queryNorm
            4.0429845 = fieldWeight in 5187, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.085969 = idf(docFreq=36, maxDocs=44218)
              0.5 = fieldNorm(doc=5187)
    

Similar documents (content)

  1. Maron, M.E.: ¬An historical note on the origins of probabilistic indexing (2008) 0.36
    0.35551408 = sum of:
      0.35551408 = product of:
        0.8887852 = sum of:
          0.064260826 = weight(abstract_txt:retrieval in 2047) [ClassicSimilarity], result of:
            0.064260826 = score(doc=2047,freq=2.0), product of:
              0.10460419 = queryWeight, product of:
                1.0304928 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.029210024 = queryNorm
              0.6143236 = fieldWeight in 2047, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.125 = fieldNorm(doc=2047)
          0.82452434 = weight(abstract_txt:1958 in 2047) [ClassicSimilarity], result of:
            0.82452434 = score(doc=2047,freq=1.0), product of:
              0.72232145 = queryWeight, product of:
                2.707919 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.029210024 = queryNorm
              1.1414922 = fieldWeight in 2047, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.125 = fieldNorm(doc=2047)
        0.4 = coord(2/5)
    
  2. Bossers, A.: Cooperative library automation and the Pica experience (1989) 0.29
    0.28697634 = sum of:
      0.28697634 = product of:
        0.47829387 = sum of:
          0.06357 = weight(abstract_txt:system in 2838) [ClassicSimilarity], result of:
            0.06357 = score(doc=2838,freq=6.0), product of:
              0.098505214 = queryWeight, product of:
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.029210024 = queryNorm
              0.6453465 = fieldWeight in 2838, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.078125 = fieldNorm(doc=2838)
          0.028399542 = weight(abstract_txt:retrieval in 2838) [ClassicSimilarity], result of:
            0.028399542 = score(doc=2838,freq=1.0), product of:
              0.10460419 = queryWeight, product of:
                1.0304928 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.029210024 = queryNorm
              0.27149525 = fieldWeight in 2838, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.078125 = fieldNorm(doc=2838)
          0.38632432 = weight(abstract_txt:1978 in 2838) [ClassicSimilarity], result of:
            0.38632432 = score(doc=2838,freq=1.0), product of:
              0.59608686 = queryWeight, product of:
                2.4599438 = boost
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.029210024 = queryNorm
              0.64810073 = fieldWeight in 2838, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.078125 = fieldNorm(doc=2838)
        0.6 = coord(3/5)
    
  3. Schwarz, H.: ¬Das Deutsche Bibliotheksinstitut : im Spannungsfeld zwischen Auftrag und politischem Interesse (2017) 0.25
    0.24724758 = sum of:
      0.24724758 = product of:
        1.2362379 = sum of:
          1.2362379 = weight(abstract_txt:1978 in 3725) [ClassicSimilarity], result of:
            1.2362379 = score(doc=3725,freq=1.0), product of:
              0.59608686 = queryWeight, product of:
                2.4599438 = boost
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.029210024 = queryNorm
              2.0739224 = fieldWeight in 3725, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.25 = fieldNorm(doc=3725)
        0.2 = coord(1/5)
    
  4. Holland, M.P.; Powell, C.K.: ¬A longitudinal survey of the information seeking and use habits of some engineers (1995) 0.23
    0.23224537 = sum of:
      0.23224537 = product of:
        0.58061343 = sum of:
          0.03975936 = weight(abstract_txt:retrieval in 909) [ClassicSimilarity], result of:
            0.03975936 = score(doc=909,freq=1.0), product of:
              0.10460419 = queryWeight, product of:
                1.0304928 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.029210024 = queryNorm
              0.38009337 = fieldWeight in 909, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.109375 = fieldNorm(doc=909)
          0.5408541 = weight(abstract_txt:1978 in 909) [ClassicSimilarity], result of:
            0.5408541 = score(doc=909,freq=1.0), product of:
              0.59608686 = queryWeight, product of:
                2.4599438 = boost
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.029210024 = queryNorm
              0.90734106 = fieldWeight in 909, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.109375 = fieldNorm(doc=909)
        0.4 = coord(2/5)
    
  5. Hermans, J.: Ontologiebasiertes Information Retrieval für das Wissensmanagement (2008) 0.23
    0.2283744 = sum of:
      0.2283744 = product of:
        0.380624 = sum of:
          0.020761874 = weight(abstract_txt:system in 506) [ClassicSimilarity], result of:
            0.020761874 = score(doc=506,freq=1.0), product of:
              0.098505214 = queryWeight, product of:
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.029210024 = queryNorm
              0.21076928 = fieldWeight in 506, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.3723085 = idf(docFreq=4123, maxDocs=44218)
                0.0625 = fieldNorm(doc=506)
          0.050802648 = weight(abstract_txt:retrieval in 506) [ClassicSimilarity], result of:
            0.050802648 = score(doc=506,freq=5.0), product of:
              0.10460419 = queryWeight, product of:
                1.0304928 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.029210024 = queryNorm
              0.4856655 = fieldWeight in 506, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.0625 = fieldNorm(doc=506)
          0.30905947 = weight(abstract_txt:1978 in 506) [ClassicSimilarity], result of:
            0.30905947 = score(doc=506,freq=1.0), product of:
              0.59608686 = queryWeight, product of:
                2.4599438 = boost
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.029210024 = queryNorm
              0.5184806 = fieldWeight in 506, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.29569 = idf(docFreq=29, maxDocs=44218)
                0.0625 = fieldNorm(doc=506)
        0.6 = coord(3/5)