Document (#38038)

Author
Boyack, K.W.
Small, H.
Klavans, R.
Title
Improving the accuracy of co-citation clustering using full text
Source
Journal of the American Society for Information Science and Technology. 64(2013) no.9, S.1759-17676
Year
2013
Abstract
Historically, co-citation models have been based only on bibliographic information. Full-text analysis offers the opportunity to significantly improve the quality of the signals upon which these co-citation models are based. In this work we study the effect of reference proximity on the accuracy of co-citation clusters. Using a corpus of 270,521 full text documents from 2007, we compare the results of traditional co-citation clustering using only the bibliographic information to results from co-citation clustering where proximity between reference pairs is factored into the pairwise relationships. We find that accounting for reference proximity from full text can increase the textual coherence (a measure of accuracy) of a co-citation cluster solution by up to 30% over the traditional approach based on bibliographic information.
Theme
Informetrie
Citation indexing

Similar documents (author)

  1. Klavans, R.; Boyack, K.W.: Identifying a better measure of relatedness for mapping science (2006) 3.58
    3.5759857 = sum of:
      3.5759857 = product of:
        5.3639784 = sum of:
          2.6467125 = weight(author_txt:boyack in 253) [ClassicSimilarity], result of:
            2.6467125 = score(doc=253,freq=1.0), product of:
              0.58248013 = queryWeight, product of:
                1.0233825 = boost
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.06263073 = queryNorm
              4.5438676 = fieldWeight in 253, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.5 = fieldNorm(doc=253)
          2.7172656 = weight(author_txt:klavans in 253) [ClassicSimilarity], result of:
            2.7172656 = score(doc=253,freq=1.0), product of:
              0.5927861 = queryWeight, product of:
                1.0323963 = boost
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.06263073 = queryNorm
              4.583889 = fieldWeight in 253, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.5 = fieldNorm(doc=253)
        0.6666667 = coord(2/3)
    
  2. Klavans, R.; Boyack, K.W.: Toward a consensus map of science (2009) 3.58
    3.5759857 = sum of:
      3.5759857 = product of:
        5.3639784 = sum of:
          2.6467125 = weight(author_txt:boyack in 556) [ClassicSimilarity], result of:
            2.6467125 = score(doc=556,freq=1.0), product of:
              0.58248013 = queryWeight, product of:
                1.0233825 = boost
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.06263073 = queryNorm
              4.5438676 = fieldWeight in 556, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.5 = fieldNorm(doc=556)
          2.7172656 = weight(author_txt:klavans in 556) [ClassicSimilarity], result of:
            2.7172656 = score(doc=556,freq=1.0), product of:
              0.5927861 = queryWeight, product of:
                1.0323963 = boost
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.06263073 = queryNorm
              4.583889 = fieldWeight in 556, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.5 = fieldNorm(doc=556)
        0.6666667 = coord(2/3)
    
  3. Boyack, K.W.; Klavans, R.: Co-citation analysis, bibliographic coupling, and direct citation : which citation approach represents the research front most accurately? (2010) 3.58
    3.5759857 = sum of:
      3.5759857 = product of:
        5.3639784 = sum of:
          2.6467125 = weight(author_txt:boyack in 1112) [ClassicSimilarity], result of:
            2.6467125 = score(doc=1112,freq=1.0), product of:
              0.58248013 = queryWeight, product of:
                1.0233825 = boost
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.06263073 = queryNorm
              4.5438676 = fieldWeight in 1112, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.5 = fieldNorm(doc=1112)
          2.7172656 = weight(author_txt:klavans in 1112) [ClassicSimilarity], result of:
            2.7172656 = score(doc=1112,freq=1.0), product of:
              0.5927861 = queryWeight, product of:
                1.0323963 = boost
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.06263073 = queryNorm
              4.583889 = fieldWeight in 1112, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.5 = fieldNorm(doc=1112)
        0.6666667 = coord(2/3)
    
  4. Klavans, R.; Boyack, K.W.: Using global mapping to create more accurate document-level maps of research fields (2011) 3.58
    3.5759857 = sum of:
      3.5759857 = product of:
        5.3639784 = sum of:
          2.6467125 = weight(author_txt:boyack in 1957) [ClassicSimilarity], result of:
            2.6467125 = score(doc=1957,freq=1.0), product of:
              0.58248013 = queryWeight, product of:
                1.0233825 = boost
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.06263073 = queryNorm
              4.5438676 = fieldWeight in 1957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.5 = fieldNorm(doc=1957)
          2.7172656 = weight(author_txt:klavans in 1957) [ClassicSimilarity], result of:
            2.7172656 = score(doc=1957,freq=1.0), product of:
              0.5927861 = queryWeight, product of:
                1.0323963 = boost
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.06263073 = queryNorm
              4.583889 = fieldWeight in 1957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.5 = fieldNorm(doc=1957)
        0.6666667 = coord(2/3)
    
  5. Boyack, K.W.; Klavans, R.: Creation of a highly detailed, dynamic, global model and map of science (2014) 3.58
    3.5759857 = sum of:
      3.5759857 = product of:
        5.3639784 = sum of:
          2.6467125 = weight(author_txt:boyack in 3231) [ClassicSimilarity], result of:
            2.6467125 = score(doc=3231,freq=1.0), product of:
              0.58248013 = queryWeight, product of:
                1.0233825 = boost
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.06263073 = queryNorm
              4.5438676 = fieldWeight in 3231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.087735 = idf(docFreq=12, maxDocs=42306)
                0.5 = fieldNorm(doc=3231)
          2.7172656 = weight(author_txt:klavans in 3231) [ClassicSimilarity], result of:
            2.7172656 = score(doc=3231,freq=1.0), product of:
              0.5927861 = queryWeight, product of:
                1.0323963 = boost
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.06263073 = queryNorm
              4.583889 = fieldWeight in 3231, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.167778 = idf(docFreq=11, maxDocs=42306)
                0.5 = fieldNorm(doc=3231)
        0.6666667 = coord(2/3)
    

Similar documents (content)

  1. Ni, C.; Shaw, D.; Lind, S.M.; Ding, Y.: Journal impact and proximity : an assessment using bibliographic features (2013) 0.41
    0.41017324 = sum of:
      0.41017324 = product of:
        0.9322119 = sum of:
          0.058573376 = weight(abstract_txt:clusters in 2687) [ClassicSimilarity], result of:
            0.058573376 = score(doc=2687,freq=1.0), product of:
              0.11483709 = queryWeight, product of:
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.017589524 = queryNorm
              0.51005626 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.009126347 = weight(abstract_txt:information in 2687) [ClassicSimilarity], result of:
            0.009126347 = score(doc=2687,freq=1.0), product of:
              0.047957186 = queryWeight, product of:
                1.1192997 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.017589524 = queryNorm
              0.19030195 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.013815224 = weight(abstract_txt:from in 2687) [ClassicSimilarity], result of:
            0.013815224 = score(doc=2687,freq=1.0), product of:
              0.063225806 = queryWeight, product of:
                1.2851882 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.017589524 = queryNorm
              0.2185061 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.029680397 = weight(abstract_txt:based in 2687) [ClassicSimilarity], result of:
            0.029680397 = score(doc=2687,freq=2.0), product of:
              0.08355239 = queryWeight, product of:
                1.477403 = boost
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.017589524 = queryNorm
              0.355231 = fieldWeight in 2687, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.02676705 = weight(abstract_txt:using in 2687) [ClassicSimilarity], result of:
            0.02676705 = score(doc=2687,freq=1.0), product of:
              0.09826287 = queryWeight, product of:
                1.602191 = boost
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.017589524 = queryNorm
              0.2724025 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.06726139 = weight(abstract_txt:bibliographic in 2687) [ClassicSimilarity], result of:
            0.06726139 = score(doc=2687,freq=2.0), product of:
              0.14415276 = queryWeight, product of:
                1.9405776 = boost
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.017589524 = queryNorm
              0.466598 = fieldWeight in 2687, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.056003366 = weight(abstract_txt:text in 2687) [ClassicSimilarity], result of:
            0.056003366 = score(doc=2687,freq=1.0), product of:
              0.17692047 = queryWeight, product of:
                2.4824355 = boost
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.017589524 = queryNorm
              0.31654543 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.15252024 = weight(abstract_txt:clustering in 2687) [ClassicSimilarity], result of:
            0.15252024 = score(doc=2687,freq=1.0), product of:
              0.31347823 = queryWeight, product of:
                2.8616943 = boost
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.017589524 = queryNorm
              0.48654172 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.0998639 = weight(abstract_txt:full in 2687) [ClassicSimilarity], result of:
            0.0998639 = score(doc=2687,freq=1.0), product of:
              0.2601603 = queryWeight, product of:
                3.0102975 = boost
                4.9133477 = idf(docFreq=844, maxDocs=42306)
                0.017589524 = queryNorm
              0.38385528 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9133477 = idf(docFreq=844, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.24269365 = weight(abstract_txt:proximity in 2687) [ClassicSimilarity], result of:
            0.24269365 = score(doc=2687,freq=1.0), product of:
              0.42726243 = queryWeight, product of:
                3.3409264 = boost
                7.2706575 = idf(docFreq=79, maxDocs=42306)
                0.017589524 = queryNorm
              0.5680201 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2706575 = idf(docFreq=79, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
          0.17590693 = weight(abstract_txt:citation in 2687) [ClassicSimilarity], result of:
            0.17590693 = score(doc=2687,freq=1.0), product of:
              0.4572671 = queryWeight, product of:
                5.2795014 = boost
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.017589524 = queryNorm
              0.38469183 = fieldWeight in 2687, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.078125 = fieldNorm(doc=2687)
        0.44 = coord(11/25)
    
  2. Boyack, K.W.; Klavans, R.: Co-citation analysis, bibliographic coupling, and direct citation : which citation approach represents the research front most accurately? (2010) 0.36
    0.3649459 = sum of:
      0.3649459 = product of:
        0.9123647 = sum of:
          0.095834225 = weight(abstract_txt:cluster in 1112) [ClassicSimilarity], result of:
            0.095834225 = score(doc=1112,freq=4.0), product of:
              0.11655988 = queryWeight, product of:
                1.0074731 = boost
                6.5775104 = idf(docFreq=159, maxDocs=42306)
                0.017589524 = queryNorm
              0.8221888 = fieldWeight in 1112, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.5775104 = idf(docFreq=159, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.025300536 = weight(abstract_txt:results in 1112) [ClassicSimilarity], result of:
            0.025300536 = score(doc=1112,freq=3.0), product of:
              0.06651885 = queryWeight, product of:
                1.0763321 = boost
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.017589524 = queryNorm
              0.38035136 = fieldWeight in 1112, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.08757102 = weight(abstract_txt:coherence in 1112) [ClassicSimilarity], result of:
            0.08757102 = score(doc=1112,freq=1.0), product of:
              0.17423241 = queryWeight, product of:
                1.2317523 = boost
                8.041766 = idf(docFreq=36, maxDocs=42306)
                0.017589524 = queryNorm
              0.5026104 = fieldWeight in 1112, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.041766 = idf(docFreq=36, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.01563014 = weight(abstract_txt:from in 1112) [ClassicSimilarity], result of:
            0.01563014 = score(doc=1112,freq=2.0), product of:
              0.063225806 = queryWeight, product of:
                1.2851882 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.017589524 = queryNorm
              0.24721143 = fieldWeight in 1112, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.02908073 = weight(abstract_txt:based in 1112) [ClassicSimilarity], result of:
            0.02908073 = score(doc=1112,freq=3.0), product of:
              0.08355239 = queryWeight, product of:
                1.477403 = boost
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.017589524 = queryNorm
              0.34805384 = fieldWeight in 1112, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.037089515 = weight(abstract_txt:using in 1112) [ClassicSimilarity], result of:
            0.037089515 = score(doc=1112,freq=3.0), product of:
              0.09826287 = queryWeight, product of:
                1.602191 = boost
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.017589524 = queryNorm
              0.377452 = fieldWeight in 1112, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.07609758 = weight(abstract_txt:bibliographic in 1112) [ClassicSimilarity], result of:
            0.07609758 = score(doc=1112,freq=4.0), product of:
              0.14415276 = queryWeight, product of:
                1.9405776 = boost
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.017589524 = queryNorm
              0.5278954 = fieldWeight in 1112, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.044802696 = weight(abstract_txt:text in 1112) [ClassicSimilarity], result of:
            0.044802696 = score(doc=1112,freq=1.0), product of:
              0.17692047 = queryWeight, product of:
                2.4824355 = boost
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.017589524 = queryNorm
              0.25323635 = fieldWeight in 1112, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.15625252 = weight(abstract_txt:accuracy in 1112) [ClassicSimilarity], result of:
            0.15625252 = score(doc=1112,freq=2.0), product of:
              0.293407 = queryWeight, product of:
                2.7685654 = boost
                6.025063 = idf(docFreq=277, maxDocs=42306)
                0.017589524 = queryNorm
              0.5325453 = fieldWeight in 1112, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.025063 = idf(docFreq=277, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
          0.3447058 = weight(abstract_txt:citation in 1112) [ClassicSimilarity], result of:
            0.3447058 = score(doc=1112,freq=6.0), product of:
              0.4572671 = queryWeight, product of:
                5.2795014 = boost
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.017589524 = queryNorm
              0.753839 = fieldWeight in 1112, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.0625 = fieldNorm(doc=1112)
        0.4 = coord(10/25)
    
  3. Zhao, D.; Strotmann, A.: In-text author citation analysis : feasibility, benefits, and limitations (2014) 0.33
    0.33025932 = sum of:
      0.33025932 = product of:
        0.917387 = sum of:
          0.014607271 = weight(abstract_txt:results in 3536) [ClassicSimilarity], result of:
            0.014607271 = score(doc=3536,freq=1.0), product of:
              0.06651885 = queryWeight, product of:
                1.0763321 = boost
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.017589524 = queryNorm
              0.21959597 = fieldWeight in 3536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.01563014 = weight(abstract_txt:from in 3536) [ClassicSimilarity], result of:
            0.01563014 = score(doc=3536,freq=2.0), product of:
              0.063225806 = queryWeight, product of:
                1.2851882 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.017589524 = queryNorm
              0.24721143 = fieldWeight in 3536, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.0484434 = weight(abstract_txt:traditional in 3536) [ClassicSimilarity], result of:
            0.0484434 = score(doc=3536,freq=2.0), product of:
              0.1174118 = queryWeight, product of:
                1.4299794 = boost
                4.667968 = idf(docFreq=1079, maxDocs=42306)
                0.017589524 = queryNorm
              0.41259396 = fieldWeight in 3536, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.667968 = idf(docFreq=1079, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.016789768 = weight(abstract_txt:based in 3536) [ClassicSimilarity], result of:
            0.016789768 = score(doc=3536,freq=1.0), product of:
              0.08355239 = queryWeight, product of:
                1.477403 = boost
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.017589524 = queryNorm
              0.20094898 = fieldWeight in 3536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.042827282 = weight(abstract_txt:using in 3536) [ClassicSimilarity], result of:
            0.042827282 = score(doc=3536,freq=4.0), product of:
              0.09826287 = queryWeight, product of:
                1.602191 = boost
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.017589524 = queryNorm
              0.435844 = fieldWeight in 3536, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.044426598 = weight(abstract_txt:reference in 3536) [ClassicSimilarity], result of:
            0.044426598 = score(doc=3536,freq=1.0), product of:
              0.15984207 = queryWeight, product of:
                2.0434551 = boost
                4.447049 = idf(docFreq=1346, maxDocs=42306)
                0.017589524 = queryNorm
              0.27794057 = fieldWeight in 3536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.447049 = idf(docFreq=1346, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.109743744 = weight(abstract_txt:text in 3536) [ClassicSimilarity], result of:
            0.109743744 = score(doc=3536,freq=6.0), product of:
              0.17692047 = queryWeight, product of:
                2.4824355 = boost
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.017589524 = queryNorm
              0.6202999 = fieldWeight in 3536, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.0517817 = idf(docFreq=1999, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.07989112 = weight(abstract_txt:full in 3536) [ClassicSimilarity], result of:
            0.07989112 = score(doc=3536,freq=1.0), product of:
              0.2601603 = queryWeight, product of:
                3.0102975 = boost
                4.9133477 = idf(docFreq=844, maxDocs=42306)
                0.017589524 = queryNorm
              0.30708423 = fieldWeight in 3536, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.9133477 = idf(docFreq=844, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
          0.5450277 = weight(abstract_txt:citation in 3536) [ClassicSimilarity], result of:
            0.5450277 = score(doc=3536,freq=15.0), product of:
              0.4572671 = queryWeight, product of:
                5.2795014 = boost
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.017589524 = queryNorm
              1.1919241 = fieldWeight in 3536, product of:
                3.8729835 = tf(freq=15.0), with freq of:
                  15.0 = termFreq=15.0
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.0625 = fieldNorm(doc=3536)
        0.36 = coord(9/25)
    
  4. Tho, Q.T.; Hui, S.C.; Fong, A.C.M.: ¬A citation-based document retrieval system for finding research expertise (2007) 0.31
    0.3106676 = sum of:
      0.3106676 = product of:
        0.77666897 = sum of:
          0.082835265 = weight(abstract_txt:clusters in 2957) [ClassicSimilarity], result of:
            0.082835265 = score(doc=2957,freq=2.0), product of:
              0.11483709 = queryWeight, product of:
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.017589524 = queryNorm
              0.7213285 = fieldWeight in 2957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.059896387 = weight(abstract_txt:cluster in 2957) [ClassicSimilarity], result of:
            0.059896387 = score(doc=2957,freq=1.0), product of:
              0.11655988 = queryWeight, product of:
                1.0074731 = boost
                6.5775104 = idf(docFreq=159, maxDocs=42306)
                0.017589524 = queryNorm
              0.513868 = fieldWeight in 2957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5775104 = idf(docFreq=159, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.02582225 = weight(abstract_txt:results in 2957) [ClassicSimilarity], result of:
            0.02582225 = score(doc=2957,freq=2.0), product of:
              0.06651885 = queryWeight, product of:
                1.0763321 = boost
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.017589524 = queryNorm
              0.38819447 = fieldWeight in 2957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.009126347 = weight(abstract_txt:information in 2957) [ClassicSimilarity], result of:
            0.009126347 = score(doc=2957,freq=1.0), product of:
              0.047957186 = queryWeight, product of:
                1.1192997 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.017589524 = queryNorm
              0.19030195 = fieldWeight in 2957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.027630448 = weight(abstract_txt:from in 2957) [ClassicSimilarity], result of:
            0.027630448 = score(doc=2957,freq=4.0), product of:
              0.063225806 = queryWeight, product of:
                1.2851882 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.017589524 = queryNorm
              0.4370122 = fieldWeight in 2957, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.0326869 = weight(abstract_txt:only in 2957) [ClassicSimilarity], result of:
            0.0326869 = score(doc=2957,freq=1.0), product of:
              0.09807113 = queryWeight, product of:
                1.3069065 = boost
                4.2662134 = idf(docFreq=1613, maxDocs=42306)
                0.017589524 = queryNorm
              0.3332979 = fieldWeight in 2957, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.2662134 = idf(docFreq=1613, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.036350913 = weight(abstract_txt:based in 2957) [ClassicSimilarity], result of:
            0.036350913 = score(doc=2957,freq=3.0), product of:
              0.08355239 = queryWeight, product of:
                1.477403 = boost
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.017589524 = queryNorm
              0.4350673 = fieldWeight in 2957, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.037854325 = weight(abstract_txt:using in 2957) [ClassicSimilarity], result of:
            0.037854325 = score(doc=2957,freq=2.0), product of:
              0.09826287 = queryWeight, product of:
                1.602191 = boost
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.017589524 = queryNorm
              0.3852353 = fieldWeight in 2957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.21569619 = weight(abstract_txt:clustering in 2957) [ClassicSimilarity], result of:
            0.21569619 = score(doc=2957,freq=2.0), product of:
              0.31347823 = queryWeight, product of:
                2.8616943 = boost
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.017589524 = queryNorm
              0.6880739 = fieldWeight in 2957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
          0.24876994 = weight(abstract_txt:citation in 2957) [ClassicSimilarity], result of:
            0.24876994 = score(doc=2957,freq=2.0), product of:
              0.4572671 = queryWeight, product of:
                5.2795014 = boost
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.017589524 = queryNorm
              0.5440364 = fieldWeight in 2957, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.078125 = fieldNorm(doc=2957)
        0.4 = coord(10/25)
    
  5. Klavans, K.; Boyack, K.W.: Which type of citation analysis generates the most accurate taxonomy of scientific and technical knowledge? (2017) 0.28
    0.27978817 = sum of:
      0.27978817 = product of:
        0.87433803 = sum of:
          0.0468587 = weight(abstract_txt:clusters in 454) [ClassicSimilarity], result of:
            0.0468587 = score(doc=454,freq=1.0), product of:
              0.11483709 = queryWeight, product of:
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.017589524 = queryNorm
              0.40804502 = fieldWeight in 454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5287204 = idf(docFreq=167, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.014607271 = weight(abstract_txt:results in 454) [ClassicSimilarity], result of:
            0.014607271 = score(doc=454,freq=1.0), product of:
              0.06651885 = queryWeight, product of:
                1.0763321 = boost
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.017589524 = queryNorm
              0.21959597 = fieldWeight in 454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5135355 = idf(docFreq=3425, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.033579536 = weight(abstract_txt:based in 454) [ClassicSimilarity], result of:
            0.033579536 = score(doc=454,freq=4.0), product of:
              0.08355239 = queryWeight, product of:
                1.477403 = boost
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.017589524 = queryNorm
              0.40189797 = fieldWeight in 454, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.2151837 = idf(docFreq=4616, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.037089515 = weight(abstract_txt:using in 454) [ClassicSimilarity], result of:
            0.037089515 = score(doc=454,freq=3.0), product of:
              0.09826287 = queryWeight, product of:
                1.602191 = boost
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.017589524 = queryNorm
              0.377452 = fieldWeight in 454, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.486752 = idf(docFreq=3518, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.065902434 = weight(abstract_txt:bibliographic in 454) [ClassicSimilarity], result of:
            0.065902434 = score(doc=454,freq=3.0), product of:
              0.14415276 = queryWeight, product of:
                1.9405776 = boost
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.017589524 = queryNorm
              0.4571708 = fieldWeight in 454, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.223163 = idf(docFreq=1684, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.15625252 = weight(abstract_txt:accuracy in 454) [ClassicSimilarity], result of:
            0.15625252 = score(doc=454,freq=2.0), product of:
              0.293407 = queryWeight, product of:
                2.7685654 = boost
                6.025063 = idf(docFreq=277, maxDocs=42306)
                0.017589524 = queryNorm
              0.5325453 = fieldWeight in 454, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.025063 = idf(docFreq=277, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.12201619 = weight(abstract_txt:clustering in 454) [ClassicSimilarity], result of:
            0.12201619 = score(doc=454,freq=1.0), product of:
              0.31347823 = queryWeight, product of:
                2.8616943 = boost
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.017589524 = queryNorm
              0.38923338 = fieldWeight in 454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.227734 = idf(docFreq=226, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
          0.39803192 = weight(abstract_txt:citation in 454) [ClassicSimilarity], result of:
            0.39803192 = score(doc=454,freq=8.0), product of:
              0.4572671 = queryWeight, product of:
                5.2795014 = boost
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.017589524 = queryNorm
              0.87045825 = fieldWeight in 454, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.9240556 = idf(docFreq=835, maxDocs=42306)
                0.0625 = fieldNorm(doc=454)
        0.32 = coord(8/25)