Document (#35085)

Author
Yan, E.
Ding, Y.
Title
Applying centrality measures to impact analysis : a coauthorship network analysis
Source
Journal of the American Society for Information Science and Technology. 60(2009) no.10, S.2107-2118
Year
2009
Abstract
Many studies on coauthorship networks focus on network topology and network statistical mechanics. This article takes a different approach by studying micro-level network properties with the aim of applying centrality measures to impact analysis. Using coauthorship data from 16 journals in the field of library and information science (LIS) with a time span of 20 years (1988-2007), we construct an evolving coauthorship network and calculate four centrality measures (closeness centrality, betweenness centrality, degree centrality, and PageRank) for authors in this network. We find that the four centrality measures are significantly correlated with citation counts. We also discuss the usability of centrality measures in author ranking and suggest that centrality measures can be useful indicators for impact analysis.
Theme
Informetrie

Similar documents (author)

  1. Ding, Y.: Visualization of intellectual structure in information retrieval : author cocitation analysis (1998) 4.85
    4.845437 = sum of:
      4.845437 = weight(author_txt:ding in 4206) [ClassicSimilarity], result of:
        4.845437 = fieldWeight in 4206, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.7526994 = idf(docFreq=48, maxDocs=41962)
          0.625 = fieldNorm(doc=4206)
    
  2. Ding, Y.: Scholarly communication and bibliometrics : Part 1: The scholarly communication model: literature review (1998) 4.85
    4.845437 = sum of:
      4.845437 = weight(author_txt:ding in 5409) [ClassicSimilarity], result of:
        4.845437 = fieldWeight in 5409, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.7526994 = idf(docFreq=48, maxDocs=41962)
          0.625 = fieldNorm(doc=5409)
    
  3. Ding, C.H.Q.: ¬A probabilistic model for Latent Semantic Indexing (2005) 4.85
    4.845437 = sum of:
      4.845437 = weight(author_txt:ding in 4460) [ClassicSimilarity], result of:
        4.845437 = fieldWeight in 4460, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.7526994 = idf(docFreq=48, maxDocs=41962)
          0.625 = fieldNorm(doc=4460)
    
  4. Ding, Y.: ¬A review of ontologies with the Semantic Web in view (2001) 4.85
    4.845437 = sum of:
      4.845437 = weight(author_txt:ding in 153) [ClassicSimilarity], result of:
        4.845437 = fieldWeight in 153, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.7526994 = idf(docFreq=48, maxDocs=41962)
          0.625 = fieldNorm(doc=153)
    
  5. Ding, Y.: Applying weighted PageRank to author citation networks (2011) 4.85
    4.845437 = sum of:
      4.845437 = weight(author_txt:ding in 1189) [ClassicSimilarity], result of:
        4.845437 = fieldWeight in 1189, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.7526994 = idf(docFreq=48, maxDocs=41962)
          0.625 = fieldNorm(doc=1189)
    

Similar documents (content)

  1. Zhuge, H.; Zhang, J.: Topological centrality and its e-Science applications (2010) 0.82
    0.816449 = sum of:
      0.816449 = product of:
        2.2679138 = sum of:
          0.03221191 = weight(abstract_txt:construct in 985) [ClassicSimilarity], result of:
            0.03221191 = score(doc=985,freq=1.0), product of:
              0.055165477 = queryWeight, product of:
                1.0021311 = boost
                6.2284193 = idf(docFreq=224, maxDocs=41962)
                0.008838224 = queryNorm
              0.5839143 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.2284193 = idf(docFreq=224, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.057379145 = weight(abstract_txt:pagerank in 985) [ClassicSimilarity], result of:
            0.057379145 = score(doc=985,freq=1.0), product of:
              0.081063576 = queryWeight, product of:
                1.214797 = boost
                7.550175 = idf(docFreq=59, maxDocs=41962)
                0.008838224 = queryNorm
              0.70782894 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.550175 = idf(docFreq=59, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.006510202 = weight(abstract_txt:with in 985) [ClassicSimilarity], result of:
            0.006510202 = score(doc=985,freq=1.0), product of:
              0.027400581 = queryWeight, product of:
                1.2232955 = boost
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.008838224 = queryNorm
              0.23759356 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.08213391 = weight(abstract_txt:closeness in 985) [ClassicSimilarity], result of:
            0.08213391 = score(doc=985,freq=1.0), product of:
              0.102960676 = queryWeight, product of:
                1.3690728 = boost
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.008838224 = queryNorm
              0.79772115 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.09514388 = weight(abstract_txt:betweenness in 985) [ClassicSimilarity], result of:
            0.09514388 = score(doc=985,freq=1.0), product of:
              0.11356477 = queryWeight, product of:
                1.4378469 = boost
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.008838224 = queryNorm
              0.83779395 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.027231205 = weight(abstract_txt:analysis in 985) [ClassicSimilarity], result of:
            0.027231205 = score(doc=985,freq=1.0), product of:
              0.078292646 = queryWeight, product of:
                2.3877087 = boost
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.008838224 = queryNorm
              0.34781307 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.16081648 = weight(abstract_txt:network in 985) [ClassicSimilarity], result of:
            0.16081648 = score(doc=985,freq=4.0), product of:
              0.18446212 = queryWeight, product of:
                4.4886947 = boost
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.008838224 = queryNorm
              0.87181306 = fieldWeight in 985, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          0.12891577 = weight(abstract_txt:measures in 985) [ClassicSimilarity], result of:
            0.12891577 = score(doc=985,freq=1.0), product of:
              0.25268385 = queryWeight, product of:
                5.253578 = boost
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.008838224 = queryNorm
              0.510186 = fieldWeight in 985, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
          1.6775713 = weight(abstract_txt:centrality in 985) [ClassicSimilarity], result of:
            1.6775713 = score(doc=985,freq=8.0), product of:
              0.80013126 = queryWeight, product of:
                11.449663 = boost
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.008838224 = queryNorm
              2.09662 = fieldWeight in 985, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.09375 = fieldNorm(doc=985)
        0.36 = coord(9/25)
    
  2. Leydesdorff, L.: Betweenness centrality as an indicator of the interdisciplinarity of scientific journals (2007) 0.38
    0.3836173 = sum of:
      0.3836173 = product of:
        1.3700619 = sum of:
          0.054755937 = weight(abstract_txt:closeness in 2454) [ClassicSimilarity], result of:
            0.054755937 = score(doc=2454,freq=1.0), product of:
              0.102960676 = queryWeight, product of:
                1.3690728 = boost
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.008838224 = queryNorm
              0.5318141 = fieldWeight in 2454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.1268585 = weight(abstract_txt:betweenness in 2454) [ClassicSimilarity], result of:
            0.1268585 = score(doc=2454,freq=4.0), product of:
              0.11356477 = queryWeight, product of:
                1.4378469 = boost
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.008838224 = queryNorm
              1.1170586 = fieldWeight in 2454, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.026598424 = weight(abstract_txt:impact in 2454) [ClassicSimilarity], result of:
            0.026598424 = score(doc=2454,freq=1.0), product of:
              0.09176172 = queryWeight, product of:
                2.2386296 = boost
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.008838224 = queryNorm
              0.28986403 = fieldWeight in 2454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.018154137 = weight(abstract_txt:analysis in 2454) [ClassicSimilarity], result of:
            0.018154137 = score(doc=2454,freq=1.0), product of:
              0.078292646 = queryWeight, product of:
                2.3877087 = boost
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.008838224 = queryNorm
              0.23187539 = fieldWeight in 2454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.053605493 = weight(abstract_txt:network in 2454) [ClassicSimilarity], result of:
            0.053605493 = score(doc=2454,freq=1.0), product of:
              0.18446212 = queryWeight, product of:
                4.4886947 = boost
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.008838224 = queryNorm
              0.29060435 = fieldWeight in 2454, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.12154295 = weight(abstract_txt:measures in 2454) [ClassicSimilarity], result of:
            0.12154295 = score(doc=2454,freq=2.0), product of:
              0.25268385 = queryWeight, product of:
                5.253578 = boost
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.008838224 = queryNorm
              0.481008 = fieldWeight in 2454, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
          0.9685464 = weight(abstract_txt:centrality in 2454) [ClassicSimilarity], result of:
            0.9685464 = score(doc=2454,freq=6.0), product of:
              0.80013126 = queryWeight, product of:
                11.449663 = boost
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.008838224 = queryNorm
              1.2104844 = fieldWeight in 2454, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.0625 = fieldNorm(doc=2454)
        0.28 = coord(7/25)
    
  3. Ding, Y.; Yan, E.; Frazho, A.; Caverlee, J.: PageRank for ranking authors in co-citation networks (2009) 0.33
    0.32834578 = sum of:
      0.32834578 = product of:
        1.1726635 = sum of:
          0.04839702 = weight(abstract_txt:correlated in 162) [ClassicSimilarity], result of:
            0.04839702 = score(doc=162,freq=2.0), product of:
              0.07526383 = queryWeight, product of:
                1.1705339 = boost
                7.275072 = idf(docFreq=78, maxDocs=41962)
                0.008838224 = queryNorm
              0.6430316 = fieldWeight in 162, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.275072 = idf(docFreq=78, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.11475829 = weight(abstract_txt:pagerank in 162) [ClassicSimilarity], result of:
            0.11475829 = score(doc=162,freq=9.0), product of:
              0.081063576 = queryWeight, product of:
                1.214797 = boost
                7.550175 = idf(docFreq=59, maxDocs=41962)
                0.008838224 = queryNorm
              1.4156579 = fieldWeight in 162, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                7.550175 = idf(docFreq=59, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.013020404 = weight(abstract_txt:with in 162) [ClassicSimilarity], result of:
            0.013020404 = score(doc=162,freq=9.0), product of:
              0.027400581 = queryWeight, product of:
                1.2232955 = boost
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.008838224 = queryNorm
              0.47518712 = fieldWeight in 162, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.026598424 = weight(abstract_txt:impact in 162) [ClassicSimilarity], result of:
            0.026598424 = score(doc=162,freq=1.0), product of:
              0.09176172 = queryWeight, product of:
                2.2386296 = boost
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.008838224 = queryNorm
              0.28986403 = fieldWeight in 162, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.09284744 = weight(abstract_txt:network in 162) [ClassicSimilarity], result of:
            0.09284744 = score(doc=162,freq=3.0), product of:
              0.18446212 = queryWeight, product of:
                4.4886947 = boost
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.008838224 = queryNorm
              0.5033415 = fieldWeight in 162, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.19217628 = weight(abstract_txt:measures in 162) [ClassicSimilarity], result of:
            0.19217628 = score(doc=162,freq=5.0), product of:
              0.25268385 = queryWeight, product of:
                5.253578 = boost
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.008838224 = queryNorm
              0.7605404 = fieldWeight in 162, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
          0.68486565 = weight(abstract_txt:centrality in 162) [ClassicSimilarity], result of:
            0.68486565 = score(doc=162,freq=3.0), product of:
              0.80013126 = queryWeight, product of:
                11.449663 = boost
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.008838224 = queryNorm
              0.85594165 = fieldWeight in 162, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.0625 = fieldNorm(doc=162)
        0.28 = coord(7/25)
    
  4. Shibata, N.; Kajikawa, Y.; Matsushima, K.: Topological analysis of citation networks to discover the future core articles (2007) 0.33
    0.32795736 = sum of:
      0.32795736 = product of:
        1.1712763 = sum of:
          0.03422186 = weight(abstract_txt:correlated in 2287) [ClassicSimilarity], result of:
            0.03422186 = score(doc=2287,freq=1.0), product of:
              0.07526383 = queryWeight, product of:
                1.1705339 = boost
                7.275072 = idf(docFreq=78, maxDocs=41962)
                0.008838224 = queryNorm
              0.454692 = fieldWeight in 2287, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.275072 = idf(docFreq=78, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.0043401346 = weight(abstract_txt:with in 2287) [ClassicSimilarity], result of:
            0.0043401346 = score(doc=2287,freq=1.0), product of:
              0.027400581 = queryWeight, product of:
                1.2232955 = boost
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.008838224 = queryNorm
              0.15839571 = fieldWeight in 2287, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.5343313 = idf(docFreq=9046, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.054755937 = weight(abstract_txt:closeness in 2287) [ClassicSimilarity], result of:
            0.054755937 = score(doc=2287,freq=1.0), product of:
              0.102960676 = queryWeight, product of:
                1.3690728 = boost
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.008838224 = queryNorm
              0.5318141 = fieldWeight in 2287, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.08970251 = weight(abstract_txt:betweenness in 2287) [ClassicSimilarity], result of:
            0.08970251 = score(doc=2287,freq=2.0), product of:
              0.11356477 = queryWeight, product of:
                1.4378469 = boost
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.008838224 = queryNorm
              0.78987974 = fieldWeight in 2287, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.018154137 = weight(abstract_txt:analysis in 2287) [ClassicSimilarity], result of:
            0.018154137 = score(doc=2287,freq=1.0), product of:
              0.078292646 = queryWeight, product of:
                2.3877087 = boost
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.008838224 = queryNorm
              0.23187539 = fieldWeight in 2287, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.08594384 = weight(abstract_txt:measures in 2287) [ClassicSimilarity], result of:
            0.08594384 = score(doc=2287,freq=1.0), product of:
              0.25268385 = queryWeight, product of:
                5.253578 = boost
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.008838224 = queryNorm
              0.340124 = fieldWeight in 2287, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
          0.88415784 = weight(abstract_txt:centrality in 2287) [ClassicSimilarity], result of:
            0.88415784 = score(doc=2287,freq=5.0), product of:
              0.80013126 = queryWeight, product of:
                11.449663 = boost
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.008838224 = queryNorm
              1.105016 = fieldWeight in 2287, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.0625 = fieldNorm(doc=2287)
        0.28 = coord(7/25)
    
  5. Hoffmann, C.P.; Lutz, C.; Meckel, M.: ¬A relational altmetric? : network centrality on ResearchGate as an indicator of scientific impact (2016) 0.31
    0.30700603 = sum of:
      0.30700603 = product of:
        1.0964501 = sum of:
          0.054755937 = weight(abstract_txt:closeness in 4844) [ClassicSimilarity], result of:
            0.054755937 = score(doc=4844,freq=1.0), product of:
              0.102960676 = queryWeight, product of:
                1.3690728 = boost
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.008838224 = queryNorm
              0.5318141 = fieldWeight in 4844, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.509026 = idf(docFreq=22, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.06342925 = weight(abstract_txt:betweenness in 4844) [ClassicSimilarity], result of:
            0.06342925 = score(doc=4844,freq=1.0), product of:
              0.11356477 = queryWeight, product of:
                1.4378469 = boost
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.008838224 = queryNorm
              0.5585293 = fieldWeight in 4844, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.936469 = idf(docFreq=14, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.07037281 = weight(abstract_txt:impact in 4844) [ClassicSimilarity], result of:
            0.07037281 = score(doc=4844,freq=7.0), product of:
              0.09176172 = queryWeight, product of:
                2.2386296 = boost
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.008838224 = queryNorm
              0.7669081 = fieldWeight in 4844, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.6378245 = idf(docFreq=1103, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.025673825 = weight(abstract_txt:analysis in 4844) [ClassicSimilarity], result of:
            0.025673825 = score(doc=4844,freq=2.0), product of:
              0.078292646 = queryWeight, product of:
                2.3877087 = boost
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.008838224 = queryNorm
              0.3279213 = fieldWeight in 4844, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7100062 = idf(docFreq=2791, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.07580961 = weight(abstract_txt:network in 4844) [ClassicSimilarity], result of:
            0.07580961 = score(doc=4844,freq=2.0), product of:
              0.18446212 = queryWeight, product of:
                4.4886947 = boost
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.008838224 = queryNorm
              0.41097662 = fieldWeight in 4844, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6496696 = idf(docFreq=1090, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.12154295 = weight(abstract_txt:measures in 4844) [ClassicSimilarity], result of:
            0.12154295 = score(doc=4844,freq=2.0), product of:
              0.25268385 = queryWeight, product of:
                5.253578 = boost
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.008838224 = queryNorm
              0.481008 = fieldWeight in 4844, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.441984 = idf(docFreq=493, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
          0.68486565 = weight(abstract_txt:centrality in 4844) [ClassicSimilarity], result of:
            0.68486565 = score(doc=4844,freq=3.0), product of:
              0.80013126 = queryWeight, product of:
                11.449663 = boost
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.008838224 = queryNorm
              0.85594165 = fieldWeight in 4844, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.9068503 = idf(docFreq=41, maxDocs=41962)
                0.0625 = fieldNorm(doc=4844)
        0.28 = coord(7/25)