Document (#15562)

Author
Chen, H.
Ng, T.D.
Martinez, J.
Schatz, B.R.
Title
¬A concept space approach to addressing the vocabulary problem in scientific information retrieval : an experiment on the Worm Community System
Source
Journal of the American Society for Information Science. 48(1997) no.1, S.17-31
Year
1997
Abstract
This research presents an algorithmic approach to addressing the vocabulary problem in scientific information retrieval and information sharing, using the molecular biology domain as an example. We first present a literature review of cognitive studies related to the vocabulary problem and vocabulary-based search aids (thesauri) and then discuss techniques for building robust and domain-specific thesauri to assist in cross-domain scientific information retrieval. Using a variation of the automatic thesaurus generation techniques, which we refer to as the concept space approach, we recently conducted an experiment in the molecular biology domain in which we created a C. elegans worm thesaurus of 7.657 worm-specific terms and a Drosophila fly thesaurus of 15.626 terms. About 30% of these terms overlapped, which created vocabulary paths from one subject domain to the other. Based on a cognitve study of term association involving 4 biologists, we found that a large percentage (59,6-85,6%) of the terms suggested by the subjects were identified in the cojoined fly-worm thesaurus. However, we found only a small percentage (8,4-18,1%) of the associations suggested by the subjects in the thesaurus

Similar documents (author)

  1. Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998) 4.35
    4.349099 = sum of:
      4.349099 = sum of:
        0.6150233 = weight(author_txt:chen in 6203) [ClassicSimilarity], result of:
          0.6150233 = score(doc=6203,freq=1.0), product of:
            0.31851655 = queryWeight, product of:
              6.178877 = idf(docFreq=239, maxDocs=42596)
              0.051549263 = queryNorm
            1.930899 = fieldWeight in 6203, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              6.178877 = idf(docFreq=239, maxDocs=42596)
              0.3125 = fieldNorm(doc=6203)
        1.5252991 = weight(author_txt:martinez in 6203) [ClassicSimilarity], result of:
          1.5252991 = score(doc=6203,freq=1.0), product of:
            0.58358973 = queryWeight, product of:
              1.3535922 = boost
              8.363679 = idf(docFreq=26, maxDocs=42596)
              0.051549263 = queryNorm
            2.6136496 = fieldWeight in 6203, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              8.363679 = idf(docFreq=26, maxDocs=42596)
              0.3125 = fieldNorm(doc=6203)
        2.2087767 = weight(author_txt:schatz in 6203) [ClassicSimilarity], result of:
          2.2087767 = score(doc=6203,freq=1.0), product of:
            0.74697405 = queryWeight, product of:
              1.5313933 = boost
              9.462291 = idf(docFreq=8, maxDocs=42596)
              0.051549263 = queryNorm
            2.956966 = fieldWeight in 6203, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.462291 = idf(docFreq=8, maxDocs=42596)
              0.3125 = fieldNorm(doc=6203)
    
  2. Chen, H.; Houston, A.L.; Sewell, R.R.; Schatz, B.R.: Internet browsing and searching : user evaluations of category map and concept space techniques (1998) 1.88
    1.8825334 = sum of:
      1.8825334 = product of:
        2.8238 = sum of:
          0.6150233 = weight(author_txt:chen in 1870) [ClassicSimilarity], result of:
            0.6150233 = score(doc=1870,freq=1.0), product of:
              0.31851655 = queryWeight, product of:
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.051549263 = queryNorm
              1.930899 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.3125 = fieldNorm(doc=1870)
          2.2087767 = weight(author_txt:schatz in 1870) [ClassicSimilarity], result of:
            2.2087767 = score(doc=1870,freq=1.0), product of:
              0.74697405 = queryWeight, product of:
                1.5313933 = boost
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.051549263 = queryNorm
              2.956966 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.3125 = fieldNorm(doc=1870)
        0.6666667 = coord(2/3)
    
  3. Ramsey, M.C.; Chen, H.; Zhu, B.; Schatz, B.R.: ¬A collection of visual thesauri for browsing large collections of geographic images (1999) 1.88
    1.8825334 = sum of:
      1.8825334 = product of:
        2.8238 = sum of:
          0.6150233 = weight(author_txt:chen in 4923) [ClassicSimilarity], result of:
            0.6150233 = score(doc=4923,freq=1.0), product of:
              0.31851655 = queryWeight, product of:
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.051549263 = queryNorm
              1.930899 = fieldWeight in 4923, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.3125 = fieldNorm(doc=4923)
          2.2087767 = weight(author_txt:schatz in 4923) [ClassicSimilarity], result of:
            2.2087767 = score(doc=4923,freq=1.0), product of:
              0.74697405 = queryWeight, product of:
                1.5313933 = boost
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.051549263 = queryNorm
              2.956966 = fieldWeight in 4923, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.3125 = fieldNorm(doc=4923)
        0.6666667 = coord(2/3)
    
  4. Schatz, B.R.; Johnson, E.H.; Cochrane, P.A.; Chen, H.: Interactive term suggestion for users of digital libraries : using thesauri and co-occurrence lists for information retrieval (1996) 1.88
    1.8825334 = sum of:
      1.8825334 = product of:
        2.8238 = sum of:
          0.6150233 = weight(author_txt:chen in 418) [ClassicSimilarity], result of:
            0.6150233 = score(doc=418,freq=1.0), product of:
              0.31851655 = queryWeight, product of:
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.051549263 = queryNorm
              1.930899 = fieldWeight in 418, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.3125 = fieldNorm(doc=418)
          2.2087767 = weight(author_txt:schatz in 418) [ClassicSimilarity], result of:
            2.2087767 = score(doc=418,freq=1.0), product of:
              0.74697405 = queryWeight, product of:
                1.5313933 = boost
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.051549263 = queryNorm
              2.956966 = fieldWeight in 418, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.462291 = idf(docFreq=8, maxDocs=42596)
                0.3125 = fieldNorm(doc=418)
        0.6666667 = coord(2/3)
    
  5. Frias-Martinez, E.; Chen, S.Y.; Liu, X.: Automatic cognitive style identification of digital library users for personalization (2007) 1.71
    1.7122581 = sum of:
      1.7122581 = product of:
        2.568387 = sum of:
          0.738028 = weight(author_txt:chen in 1254) [ClassicSimilarity], result of:
            0.738028 = score(doc=1254,freq=1.0), product of:
              0.31851655 = queryWeight, product of:
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.051549263 = queryNorm
              2.3170788 = fieldWeight in 1254, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.178877 = idf(docFreq=239, maxDocs=42596)
                0.375 = fieldNorm(doc=1254)
          1.830359 = weight(author_txt:martinez in 1254) [ClassicSimilarity], result of:
            1.830359 = score(doc=1254,freq=1.0), product of:
              0.58358973 = queryWeight, product of:
                1.3535922 = boost
                8.363679 = idf(docFreq=26, maxDocs=42596)
                0.051549263 = queryNorm
              3.1363797 = fieldWeight in 1254, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.363679 = idf(docFreq=26, maxDocs=42596)
                0.375 = fieldNorm(doc=1254)
        0.6666667 = coord(2/3)
    

Similar documents (content)

  1. Chen, H.; Yim, T.; Fye, D.: Automatic thesaurus generation for an electronic community system (1995) 0.56
    0.5643005 = sum of:
      0.5643005 = product of:
        1.4107511 = sum of:
          0.009105001 = weight(abstract_txt:which in 2987) [ClassicSimilarity], result of:
            0.009105001 = score(doc=2987,freq=1.0), product of:
              0.049649466 = queryWeight, product of:
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.016921123 = queryNorm
              0.18338567 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.022281248 = weight(abstract_txt:techniques in 2987) [ClassicSimilarity], result of:
            0.022281248 = score(doc=2987,freq=1.0), product of:
              0.07876329 = queryWeight, product of:
                1.0283928 = boost
                4.52622 = idf(docFreq=1252, maxDocs=42596)
                0.016921123 = queryNorm
              0.28288874 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.52622 = idf(docFreq=1252, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.02243562 = weight(abstract_txt:concept in 2987) [ClassicSimilarity], result of:
            0.02243562 = score(doc=2987,freq=1.0), product of:
              0.07912667 = queryWeight, product of:
                1.0307623 = boost
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.016921123 = queryNorm
              0.28354055 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.03853423 = weight(abstract_txt:thesauri in 2987) [ClassicSimilarity], result of:
            0.03853423 = score(doc=2987,freq=1.0), product of:
              0.11348243 = queryWeight, product of:
                1.2344155 = boost
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.016921123 = queryNorm
              0.3395612 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.019394726 = weight(abstract_txt:approach in 2987) [ClassicSimilarity], result of:
            0.019394726 = score(doc=2987,freq=1.0), product of:
              0.08219594 = queryWeight, product of:
                1.2866721 = boost
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.016921123 = queryNorm
              0.23595724 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.062126692 = weight(abstract_txt:experiment in 2987) [ClassicSimilarity], result of:
            0.062126692 = score(doc=2987,freq=2.0), product of:
              0.12384344 = queryWeight, product of:
                1.2895364 = boost
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.016921123 = queryNorm
              0.5016551 = fieldWeight in 2987, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.12656714 = weight(abstract_txt:molecular in 2987) [ClassicSimilarity], result of:
            0.12656714 = score(doc=2987,freq=1.0), product of:
              0.25075224 = queryWeight, product of:
                1.83493 = boost
                8.075996 = idf(docFreq=35, maxDocs=42596)
                0.016921123 = queryNorm
              0.5047498 = fieldWeight in 2987, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.075996 = idf(docFreq=35, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.0454539 = weight(abstract_txt:terms in 2987) [ClassicSimilarity], result of:
            0.0454539 = score(doc=2987,freq=2.0), product of:
              0.12669076 = queryWeight, product of:
                1.844525 = boost
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.016921123 = queryNorm
              0.35877833 = fieldWeight in 2987, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.18451777 = weight(abstract_txt:thesaurus in 2987) [ClassicSimilarity], result of:
            0.18451777 = score(doc=2987,freq=5.0), product of:
              0.25588587 = queryWeight, product of:
                2.9308274 = boost
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.016921123 = queryNorm
              0.721094 = fieldWeight in 2987, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
          0.8803347 = weight(abstract_txt:worm in 2987) [ClassicSimilarity], result of:
            0.8803347 = score(doc=2987,freq=5.0), product of:
              0.6732082 = queryWeight, product of:
                4.2519364 = boost
                9.356931 = idf(docFreq=9, maxDocs=42596)
                0.016921123 = queryNorm
              1.3076708 = fieldWeight in 2987, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                9.356931 = idf(docFreq=9, maxDocs=42596)
                0.0625 = fieldNorm(doc=2987)
        0.4 = coord(10/25)
    
  2. Chen, H.; Houston, A.L.; Sewell, R.R.; Schatz, B.R.: Internet browsing and searching : user evaluations of category map and concept space techniques (1998) 0.32
    0.32315356 = sum of:
      0.32315356 = product of:
        0.6214492 = sum of:
          0.0068287505 = weight(abstract_txt:which in 1870) [ClassicSimilarity], result of:
            0.0068287505 = score(doc=1870,freq=1.0), product of:
              0.049649466 = queryWeight, product of:
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.016921123 = queryNorm
              0.13753925 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.01653615 = weight(abstract_txt:found in 1870) [ClassicSimilarity], result of:
            0.01653615 = score(doc=1870,freq=1.0), product of:
              0.07821312 = queryWeight, product of:
                1.0247947 = boost
                4.510384 = idf(docFreq=1272, maxDocs=42596)
                0.016921123 = queryNorm
              0.21142426 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.510384 = idf(docFreq=1272, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.029144725 = weight(abstract_txt:concept in 1870) [ClassicSimilarity], result of:
            0.029144725 = score(doc=1870,freq=3.0), product of:
              0.07912667 = queryWeight, product of:
                1.0307623 = boost
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.016921123 = queryNorm
              0.36832997 = fieldWeight in 1870, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.008956323 = weight(abstract_txt:information in 1870) [ClassicSimilarity], result of:
            0.008956323 = score(doc=1870,freq=3.0), product of:
              0.04539898 = queryWeight, product of:
                1.1041679 = boost
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.016921123 = queryNorm
              0.19728027 = fieldWeight in 1870, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.015873894 = weight(abstract_txt:retrieval in 1870) [ClassicSimilarity], result of:
            0.015873894 = score(doc=1870,freq=2.0), product of:
              0.06915115 = queryWeight, product of:
                1.1801642 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.016921123 = queryNorm
              0.22955358 = fieldWeight in 1870, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.056692854 = weight(abstract_txt:space in 1870) [ClassicSimilarity], result of:
            0.056692854 = score(doc=1870,freq=4.0), product of:
              0.11202687 = queryWeight, product of:
                1.2264736 = boost
                5.398024 = idf(docFreq=523, maxDocs=42596)
                0.016921123 = queryNorm
              0.5060648 = fieldWeight in 1870, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.398024 = idf(docFreq=523, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.049786128 = weight(abstract_txt:subjects in 1870) [ClassicSimilarity], result of:
            0.049786128 = score(doc=1870,freq=3.0), product of:
              0.11307202 = queryWeight, product of:
                1.2321814 = boost
                5.4231462 = idf(docFreq=510, maxDocs=42596)
                0.016921123 = queryNorm
              0.44030458 = fieldWeight in 1870, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.4231462 = idf(docFreq=510, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.08931187 = weight(abstract_txt:suggested in 1870) [ClassicSimilarity], result of:
            0.08931187 = score(doc=1870,freq=8.0), product of:
              0.12038326 = queryWeight, product of:
                1.2713939 = boost
                5.5957303 = idf(docFreq=429, maxDocs=42596)
                0.016921123 = queryNorm
              0.74189603 = fieldWeight in 1870, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.5957303 = idf(docFreq=429, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.032947656 = weight(abstract_txt:experiment in 1870) [ClassicSimilarity], result of:
            0.032947656 = score(doc=1870,freq=1.0), product of:
              0.12384344 = queryWeight, product of:
                1.2895364 = boost
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.016921123 = queryNorm
              0.2660428 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.05848545 = weight(abstract_txt:addressing in 1870) [ClassicSimilarity], result of:
            0.05848545 = score(doc=1870,freq=1.0), product of:
              0.18156071 = queryWeight, product of:
                1.5613779 = boost
                6.872024 = idf(docFreq=119, maxDocs=42596)
                0.016921123 = queryNorm
              0.32212612 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.872024 = idf(docFreq=119, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.06377735 = weight(abstract_txt:terms in 1870) [ClassicSimilarity], result of:
            0.06377735 = score(doc=1870,freq=7.0), product of:
              0.12669076 = queryWeight, product of:
                1.844525 = boost
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.016921123 = queryNorm
              0.5034096 = fieldWeight in 1870, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.123778276 = weight(abstract_txt:thesaurus in 1870) [ClassicSimilarity], result of:
            0.123778276 = score(doc=1870,freq=4.0), product of:
              0.25588587 = queryWeight, product of:
                2.9308274 = boost
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.016921123 = queryNorm
              0.48372453 = fieldWeight in 1870, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
          0.069329716 = weight(abstract_txt:vocabulary in 1870) [ClassicSimilarity], result of:
            0.069329716 = score(doc=1870,freq=1.0), product of:
              0.27600458 = queryWeight, product of:
                3.043864 = boost
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.016921123 = queryNorm
              0.25119045 = fieldWeight in 1870, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.046875 = fieldNorm(doc=1870)
        0.52 = coord(13/25)
    
  3. Wang, J.: Automatic thesaurus development : term extraction from title metadata (2006) 0.25
    0.25230554 = sum of:
      0.25230554 = product of:
        0.6307638 = sum of:
          0.012876415 = weight(abstract_txt:which in 64) [ClassicSimilarity], result of:
            0.012876415 = score(doc=64,freq=2.0), product of:
              0.049649466 = queryWeight, product of:
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.016921123 = queryNorm
              0.2593465 = fieldWeight in 64, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.014966051 = weight(abstract_txt:retrieval in 64) [ClassicSimilarity], result of:
            0.014966051 = score(doc=64,freq=1.0), product of:
              0.06915115 = queryWeight, product of:
                1.1801642 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.016921123 = queryNorm
              0.2164252 = fieldWeight in 64, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.03832538 = weight(abstract_txt:subjects in 64) [ClassicSimilarity], result of:
            0.03832538 = score(doc=64,freq=1.0), product of:
              0.11307202 = queryWeight, product of:
                1.2321814 = boost
                5.4231462 = idf(docFreq=510, maxDocs=42596)
                0.016921123 = queryNorm
              0.33894664 = fieldWeight in 64, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.4231462 = idf(docFreq=510, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.06674324 = weight(abstract_txt:thesauri in 64) [ClassicSimilarity], result of:
            0.06674324 = score(doc=64,freq=3.0), product of:
              0.11348243 = queryWeight, product of:
                1.2344155 = boost
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.016921123 = queryNorm
              0.5881372 = fieldWeight in 64, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.027428284 = weight(abstract_txt:approach in 64) [ClassicSimilarity], result of:
            0.027428284 = score(doc=64,freq=2.0), product of:
              0.08219594 = queryWeight, product of:
                1.2866721 = boost
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.016921123 = queryNorm
              0.33369392 = fieldWeight in 64, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.043930206 = weight(abstract_txt:experiment in 64) [ClassicSimilarity], result of:
            0.043930206 = score(doc=64,freq=1.0), product of:
              0.12384344 = queryWeight, product of:
                1.2895364 = boost
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.016921123 = queryNorm
              0.35472372 = fieldWeight in 64, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.6755795 = idf(docFreq=396, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.0370649 = weight(abstract_txt:scientific in 64) [ClassicSimilarity], result of:
            0.0370649 = score(doc=64,freq=1.0), product of:
              0.12658137 = queryWeight, product of:
                1.5967158 = boost
                4.6850367 = idf(docFreq=1068, maxDocs=42596)
                0.016921123 = queryNorm
              0.2928148 = fieldWeight in 64, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6850367 = idf(docFreq=1068, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.06428152 = weight(abstract_txt:terms in 64) [ClassicSimilarity], result of:
            0.06428152 = score(doc=64,freq=4.0), product of:
              0.12669076 = queryWeight, product of:
                1.844525 = boost
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.016921123 = queryNorm
              0.5073892 = fieldWeight in 64, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.1650377 = weight(abstract_txt:thesaurus in 64) [ClassicSimilarity], result of:
            0.1650377 = score(doc=64,freq=4.0), product of:
              0.25588587 = queryWeight, product of:
                2.9308274 = boost
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.016921123 = queryNorm
              0.64496607 = fieldWeight in 64, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
          0.16011013 = weight(abstract_txt:vocabulary in 64) [ClassicSimilarity], result of:
            0.16011013 = score(doc=64,freq=3.0), product of:
              0.27600458 = queryWeight, product of:
                3.043864 = boost
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.016921123 = queryNorm
              0.5800995 = fieldWeight in 64, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.0625 = fieldNorm(doc=64)
        0.4 = coord(10/25)
    
  4. Zhang, J.; Mostafa, J.; Tripathy, H.: Information retrieval by semantic analysis and visualization of the concept space of D-Lib® magazine (2002) 0.24
    0.23826317 = sum of:
      0.23826317 = product of:
        0.45819843 = sum of:
          0.0064382073 = weight(abstract_txt:which in 2391) [ClassicSimilarity], result of:
            0.0064382073 = score(doc=2391,freq=2.0), product of:
              0.049649466 = queryWeight, product of:
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.016921123 = queryNorm
              0.12967324 = fieldWeight in 2391, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.9341707 = idf(docFreq=6156, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.0110241 = weight(abstract_txt:found in 2391) [ClassicSimilarity], result of:
            0.0110241 = score(doc=2391,freq=1.0), product of:
              0.07821312 = queryWeight, product of:
                1.0247947 = boost
                4.510384 = idf(docFreq=1272, maxDocs=42596)
                0.016921123 = queryNorm
              0.1409495 = fieldWeight in 2391, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.510384 = idf(docFreq=1272, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.019296126 = weight(abstract_txt:techniques in 2391) [ClassicSimilarity], result of:
            0.019296126 = score(doc=2391,freq=3.0), product of:
              0.07876329 = queryWeight, product of:
                1.0283928 = boost
                4.52622 = idf(docFreq=1252, maxDocs=42596)
                0.016921123 = queryNorm
              0.24498883 = fieldWeight in 2391, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.52622 = idf(docFreq=1252, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.025083784 = weight(abstract_txt:concept in 2391) [ClassicSimilarity], result of:
            0.025083784 = score(doc=2391,freq=5.0), product of:
              0.07912667 = queryWeight, product of:
                1.0307623 = boost
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.016921123 = queryNorm
              0.31700796 = fieldWeight in 2391, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.5366488 = idf(docFreq=1239, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.014213543 = weight(abstract_txt:information in 2391) [ClassicSimilarity], result of:
            0.014213543 = score(doc=2391,freq=17.0), product of:
              0.04539898 = queryWeight, product of:
                1.1041679 = boost
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.016921123 = queryNorm
              0.31308067 = fieldWeight in 2391, product of:
                4.1231055 = tf(freq=17.0), with freq of:
                  17.0 = termFreq=17.0
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.018329596 = weight(abstract_txt:retrieval in 2391) [ClassicSimilarity], result of:
            0.018329596 = score(doc=2391,freq=6.0), product of:
              0.06915115 = queryWeight, product of:
                1.1801642 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.016921123 = queryNorm
              0.26506567 = fieldWeight in 2391, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.046289522 = weight(abstract_txt:space in 2391) [ClassicSimilarity], result of:
            0.046289522 = score(doc=2391,freq=6.0), product of:
              0.11202687 = queryWeight, product of:
                1.2264736 = boost
                5.398024 = idf(docFreq=523, maxDocs=42596)
                0.016921123 = queryNorm
              0.41320017 = fieldWeight in 2391, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.398024 = idf(docFreq=523, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.027247814 = weight(abstract_txt:thesauri in 2391) [ClassicSimilarity], result of:
            0.027247814 = score(doc=2391,freq=2.0), product of:
              0.11348243 = queryWeight, product of:
                1.2344155 = boost
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.016921123 = queryNorm
              0.24010602 = fieldWeight in 2391, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.019394726 = weight(abstract_txt:approach in 2391) [ClassicSimilarity], result of:
            0.019394726 = score(doc=2391,freq=4.0), product of:
              0.08219594 = queryWeight, product of:
                1.2866721 = boost
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.016921123 = queryNorm
              0.23595724 = fieldWeight in 2391, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.7753158 = idf(docFreq=2654, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.027689273 = weight(abstract_txt:problem in 2391) [ClassicSimilarity], result of:
            0.027689273 = score(doc=2391,freq=3.0), product of:
              0.11470488 = queryWeight, product of:
                1.5199653 = boost
                4.4598374 = idf(docFreq=1338, maxDocs=42596)
                0.016921123 = queryNorm
              0.24139577 = fieldWeight in 2391, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.4598374 = idf(docFreq=1338, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.060129862 = weight(abstract_txt:terms in 2391) [ClassicSimilarity], result of:
            0.060129862 = score(doc=2391,freq=14.0), product of:
              0.12669076 = queryWeight, product of:
                1.844525 = boost
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.016921123 = queryNorm
              0.47461915 = fieldWeight in 2391, product of:
                3.7416575 = tf(freq=14.0), with freq of:
                  14.0 = termFreq=14.0
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.13684204 = weight(abstract_txt:thesaurus in 2391) [ClassicSimilarity], result of:
            0.13684204 = score(doc=2391,freq=11.0), product of:
              0.25588587 = queryWeight, product of:
                2.9308274 = boost
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.016921123 = queryNorm
              0.53477764 = fieldWeight in 2391, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
          0.04621981 = weight(abstract_txt:vocabulary in 2391) [ClassicSimilarity], result of:
            0.04621981 = score(doc=2391,freq=1.0), product of:
              0.27600458 = queryWeight, product of:
                3.043864 = boost
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.016921123 = queryNorm
              0.16746031 = fieldWeight in 2391, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.03125 = fieldNorm(doc=2391)
        0.52 = coord(13/25)
    
  5. Losee, R.: Thesaurus structure, descriptive parameters, and scale (2016) 0.23
    0.23311633 = sum of:
      0.23311633 = product of:
        0.64754534 = sum of:
          0.00975041 = weight(abstract_txt:information in 4088) [ClassicSimilarity], result of:
            0.00975041 = score(doc=4088,freq=2.0), product of:
              0.04539898 = queryWeight, product of:
                1.1041679 = boost
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.016921123 = queryNorm
              0.21477157 = fieldWeight in 4088, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.429863 = idf(docFreq=10194, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.014966051 = weight(abstract_txt:retrieval in 4088) [ClassicSimilarity], result of:
            0.014966051 = score(doc=4088,freq=1.0), product of:
              0.06915115 = queryWeight, product of:
                1.1801642 = boost
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.016921123 = queryNorm
              0.2164252 = fieldWeight in 4088, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.4628031 = idf(docFreq=3628, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.09438921 = weight(abstract_txt:thesauri in 4088) [ClassicSimilarity], result of:
            0.09438921 = score(doc=4088,freq=6.0), product of:
              0.11348243 = queryWeight, product of:
                1.2344155 = boost
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.016921123 = queryNorm
              0.8317517 = fieldWeight in 4088, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.432979 = idf(docFreq=505, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.042102017 = weight(abstract_txt:suggested in 4088) [ClassicSimilarity], result of:
            0.042102017 = score(doc=4088,freq=1.0), product of:
              0.12038326 = queryWeight, product of:
                1.2713939 = boost
                5.5957303 = idf(docFreq=429, maxDocs=42596)
                0.016921123 = queryNorm
              0.34973314 = fieldWeight in 4088, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5957303 = idf(docFreq=429, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.0779806 = weight(abstract_txt:addressing in 4088) [ClassicSimilarity], result of:
            0.0779806 = score(doc=4088,freq=1.0), product of:
              0.18156071 = queryWeight, product of:
                1.5613779 = boost
                6.872024 = idf(docFreq=119, maxDocs=42596)
                0.016921123 = queryNorm
              0.4295015 = fieldWeight in 4088, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.872024 = idf(docFreq=119, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.0370649 = weight(abstract_txt:scientific in 4088) [ClassicSimilarity], result of:
            0.0370649 = score(doc=4088,freq=1.0), product of:
              0.12658137 = queryWeight, product of:
                1.5967158 = boost
                4.6850367 = idf(docFreq=1068, maxDocs=42596)
                0.016921123 = queryNorm
              0.2928148 = fieldWeight in 4088, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6850367 = idf(docFreq=1068, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.0454539 = weight(abstract_txt:terms in 4088) [ClassicSimilarity], result of:
            0.0454539 = score(doc=4088,freq=2.0), product of:
              0.12669076 = queryWeight, product of:
                1.844525 = boost
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.016921123 = queryNorm
              0.35877833 = fieldWeight in 4088, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.0591135 = idf(docFreq=1998, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.23339856 = weight(abstract_txt:thesaurus in 4088) [ClassicSimilarity], result of:
            0.23339856 = score(doc=4088,freq=8.0), product of:
              0.25588587 = queryWeight, product of:
                2.9308274 = boost
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.016921123 = queryNorm
              0.91211975 = fieldWeight in 4088, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                5.1597285 = idf(docFreq=664, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
          0.09243962 = weight(abstract_txt:vocabulary in 4088) [ClassicSimilarity], result of:
            0.09243962 = score(doc=4088,freq=1.0), product of:
              0.27600458 = queryWeight, product of:
                3.043864 = boost
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.016921123 = queryNorm
              0.33492061 = fieldWeight in 4088, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.35873 = idf(docFreq=544, maxDocs=42596)
                0.0625 = fieldNorm(doc=4088)
        0.36 = coord(9/25)