Document (#5177)

Author
Sparck Jones, K.
Title
Automatic keyword classification for information retrieval
Imprint
London : Butterworths
Year
1971
Theme
Automatisches Indexieren

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.: ¬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)
    
  5. Sparck Jones, K.: Index term weighting (1973) 5.31
    5.3113213 = sum of:
      5.3113213 = sum of:
        2.0544336 = weight(author_txt:jones in 5491) [ClassicSimilarity], result of:
          2.0544336 = score(doc=5491,freq=1.0), product of:
            0.5925071 = queryWeight, product of:
              6.9347134 = idf(docFreq=116, maxDocs=44218)
              0.085440755 = queryNorm
            3.4673567 = fieldWeight in 5491, 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=5491)
        3.2568877 = weight(author_txt:sparck in 5491) [ClassicSimilarity], result of:
          3.2568877 = score(doc=5491,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 5491, 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=5491)
    

Similar documents (content)

  1. Tseng, Y.-H.: Keyword extraction techniques and relevance feedback (1997) 0.84
    0.84285957 = sum of:
      0.84285957 = product of:
        1.0535744 = sum of:
          0.03140737 = weight(abstract_txt:information in 1830) [ClassicSimilarity], result of:
            0.03140737 = score(doc=1830,freq=2.0), product of:
              0.11741982 = queryWeight, product of:
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.04850162 = queryNorm
              0.2674793 = fieldWeight in 1830, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.078125 = fieldNorm(doc=1830)
          0.11377278 = weight(abstract_txt:retrieval in 1830) [ClassicSimilarity], result of:
            0.11377278 = score(doc=1830,freq=3.0), product of:
              0.24194436 = queryWeight, product of:
                1.4354466 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.04850162 = queryNorm
              0.47024357 = fieldWeight in 1830, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.078125 = fieldNorm(doc=1830)
          0.21951674 = weight(abstract_txt:automatic in 1830) [ClassicSimilarity], result of:
            0.21951674 = score(doc=1830,freq=1.0), product of:
              0.5408067 = queryWeight, product of:
                2.146102 = boost
                5.1955976 = idf(docFreq=665, maxDocs=44218)
                0.04850162 = queryNorm
              0.40590608 = fieldWeight in 1830, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1955976 = idf(docFreq=665, maxDocs=44218)
                0.078125 = fieldNorm(doc=1830)
          0.6888775 = weight(abstract_txt:keyword in 1830) [ClassicSimilarity], result of:
            0.6888775 = score(doc=1830,freq=4.0), product of:
              0.7302502 = queryWeight, product of:
                2.4938202 = boost
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.04850162 = queryNorm
              0.94334453 = fieldWeight in 1830, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.078125 = fieldNorm(doc=1830)
        0.8 = coord(4/5)
    
  2. Kettunen, K.: Reductive and generative approaches to management of morphological variation of keywords in monolingual information retrieval : an overview (2009) 0.81
    0.80639 = sum of:
      0.80639 = product of:
        1.0079875 = sum of:
          0.03140737 = weight(abstract_txt:information in 2835) [ClassicSimilarity], result of:
            0.03140737 = score(doc=2835,freq=2.0), product of:
              0.11741982 = queryWeight, product of:
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.04850162 = queryNorm
              0.2674793 = fieldWeight in 2835, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.078125 = fieldNorm(doc=2835)
          0.14688003 = weight(abstract_txt:retrieval in 2835) [ClassicSimilarity], result of:
            0.14688003 = score(doc=2835,freq=5.0), product of:
              0.24194436 = queryWeight, product of:
                1.4354466 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.04850162 = queryNorm
              0.6070819 = fieldWeight in 2835, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.078125 = fieldNorm(doc=2835)
          0.14082254 = weight(abstract_txt:classification in 2835) [ClassicSimilarity], result of:
            0.14082254 = score(doc=2835,freq=2.0), product of:
              0.3192776 = queryWeight, product of:
                1.648973 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.04850162 = queryNorm
              0.44106615 = fieldWeight in 2835, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.078125 = fieldNorm(doc=2835)
          0.6888775 = weight(abstract_txt:keyword in 2835) [ClassicSimilarity], result of:
            0.6888775 = score(doc=2835,freq=4.0), product of:
              0.7302502 = queryWeight, product of:
                2.4938202 = boost
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.04850162 = queryNorm
              0.94334453 = fieldWeight in 2835, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.078125 = fieldNorm(doc=2835)
        0.8 = coord(4/5)
    
  3. Stamou, G.; Chortaras, A.: Ontological query answering over semantic data (2017) 0.73
    0.7263209 = sum of:
      0.7263209 = product of:
        1.2105348 = sum of:
          0.062183425 = weight(abstract_txt:information in 3926) [ClassicSimilarity], result of:
            0.062183425 = score(doc=3926,freq=1.0), product of:
              0.11741982 = queryWeight, product of:
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.04850162 = queryNorm
              0.529582 = fieldWeight in 3926, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.21875 = fieldNorm(doc=3926)
          0.18392289 = weight(abstract_txt:retrieval in 3926) [ClassicSimilarity], result of:
            0.18392289 = score(doc=3926,freq=1.0), product of:
              0.24194436 = queryWeight, product of:
                1.4354466 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.04850162 = queryNorm
              0.76018673 = fieldWeight in 3926, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.21875 = fieldNorm(doc=3926)
          0.9644285 = weight(abstract_txt:keyword in 3926) [ClassicSimilarity], result of:
            0.9644285 = score(doc=3926,freq=1.0), product of:
              0.7302502 = queryWeight, product of:
                2.4938202 = boost
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.04850162 = queryNorm
              1.3206823 = fieldWeight in 3926, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.21875 = fieldNorm(doc=3926)
        0.6 = coord(3/5)
    
  4. Chan, L.M.: ¬The Library of Congress Classification System in an online environment (1990) 0.66
    0.66113764 = sum of:
      0.66113764 = product of:
        1.101896 = sum of:
          0.1313735 = weight(abstract_txt:retrieval in 477) [ClassicSimilarity], result of:
            0.1313735 = score(doc=477,freq=1.0), product of:
              0.24194436 = queryWeight, product of:
                1.4354466 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.04850162 = queryNorm
              0.5429905 = fieldWeight in 477, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.15625 = fieldNorm(doc=477)
          0.2816451 = weight(abstract_txt:classification in 477) [ClassicSimilarity], result of:
            0.2816451 = score(doc=477,freq=2.0), product of:
              0.3192776 = queryWeight, product of:
                1.648973 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.04850162 = queryNorm
              0.8821323 = fieldWeight in 477, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.15625 = fieldNorm(doc=477)
          0.6888775 = weight(abstract_txt:keyword in 477) [ClassicSimilarity], result of:
            0.6888775 = score(doc=477,freq=1.0), product of:
              0.7302502 = queryWeight, product of:
                2.4938202 = boost
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.04850162 = queryNorm
              0.94334453 = fieldWeight in 477, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.037405 = idf(docFreq=286, maxDocs=44218)
                0.15625 = fieldNorm(doc=477)
        0.6 = coord(3/5)
    
  5. Shafer, K.E.: Evaluating Scorpion results (1998) 0.64
    0.6373315 = sum of:
      0.6373315 = product of:
        0.79666436 = sum of:
          0.035533383 = weight(abstract_txt:information in 1569) [ClassicSimilarity], result of:
            0.035533383 = score(doc=1569,freq=1.0), product of:
              0.11741982 = queryWeight, product of:
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.04850162 = queryNorm
              0.3026183 = fieldWeight in 1569, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4209464 = idf(docFreq=10677, maxDocs=44218)
                0.125 = fieldNorm(doc=1569)
          0.1050988 = weight(abstract_txt:retrieval in 1569) [ClassicSimilarity], result of:
            0.1050988 = score(doc=1569,freq=1.0), product of:
              0.24194436 = queryWeight, product of:
                1.4354466 = boost
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.04850162 = queryNorm
              0.43439242 = fieldWeight in 1569, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4751394 = idf(docFreq=3720, maxDocs=44218)
                0.125 = fieldNorm(doc=1569)
          0.15932253 = weight(abstract_txt:classification in 1569) [ClassicSimilarity], result of:
            0.15932253 = score(doc=1569,freq=1.0), product of:
              0.3192776 = queryWeight, product of:
                1.648973 = boost
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.04850162 = queryNorm
              0.4990094 = fieldWeight in 1569, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.9920752 = idf(docFreq=2218, maxDocs=44218)
                0.125 = fieldNorm(doc=1569)
          0.49670961 = weight(abstract_txt:automatic in 1569) [ClassicSimilarity], result of:
            0.49670961 = score(doc=1569,freq=2.0), product of:
              0.5408067 = queryWeight, product of:
                2.146102 = boost
                5.1955976 = idf(docFreq=665, maxDocs=44218)
                0.04850162 = queryNorm
              0.91846055 = fieldWeight in 1569, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.1955976 = idf(docFreq=665, maxDocs=44218)
                0.125 = fieldNorm(doc=1569)
        0.8 = coord(4/5)