Document (#34374)

Author
Lucio-Arias, D.
Leydesdorff, L.
Title
Main-path analysis and path-dependent transitions in HistCite(TM)-based historiograms
Source
Journal of the American Society for Information Science and Technology. 59(2008) no.12, S.1948-1962
Year
2008
Abstract
With the program HistCite(TM) it is possible to generate and visualize the most relevant papers in a set of documents retrieved from the Science Citation Index. Historical reconstructions of scientific developments can be represented chronologically as developments in networks of citation relations extracted from scientific literature. This study aims to go beyond the historical reconstruction of scientific knowledge, enriching the output of HistCiteTM with algorithms from social-network analysis and information theory. Using main-path analysis, it is possible to highlight the structural backbone in the development of a scientific field. The expected information value of the message can be used to indicate whether change in the distribution (of citations) has occurred to such an extent that a path-dependency is generated. This provides us with a measure of evolutionary change between subsequent documents. The forgetting and rewriting of historically prior events at the research front can thus be indicated. These three methods - HistCite, main path and path dependent transitions - are applied to a set of documents related to fullerenes and the fullerene-like structures known as nanotubes.
Theme
Informetrie
Object
HistCite

Similar documents (author)

  1. Lucio-Arias, D.; Leydesdorff, L.: ¬An indicator of research front activity : measuring intellectual organization as uncertainty reduction in document sets (2009) 5.22
    5.216313 = sum of:
      5.216313 = sum of:
        1.5506248 = weight(author_txt:leydesdorff in 3297) [ClassicSimilarity], result of:
          1.5506248 = score(doc=3297,freq=1.0), product of:
            0.49092883 = queryWeight, product of:
              7.2195506 = idf(docFreq=87, maxDocs=44218)
              0.067999914 = queryNorm
            3.1585534 = fieldWeight in 3297, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              7.2195506 = idf(docFreq=87, maxDocs=44218)
              0.4375 = fieldNorm(doc=3297)
        3.665688 = weight(author_txt:arias in 3297) [ClassicSimilarity], result of:
          3.665688 = score(doc=3297,freq=1.0), product of:
            0.87119967 = queryWeight, product of:
              1.3321391 = boost
              9.617446 = idf(docFreq=7, maxDocs=44218)
              0.067999914 = queryNorm
            4.2076325 = fieldWeight in 3297, product of:
              1.0 = tf(freq=1.0), with freq of:
                1.0 = termFreq=1.0
              9.617446 = idf(docFreq=7, maxDocs=44218)
              0.4375 = fieldNorm(doc=3297)
    
  2. Coello, A. Arias- => Arias-Coello, A.: 2.22
    2.2217426 = sum of:
      2.2217426 = product of:
        4.4434853 = sum of:
          4.4434853 = weight(author_txt:arias in 4872) [ClassicSimilarity], result of:
            4.4434853 = score(doc=4872,freq=2.0), product of:
              0.87119967 = queryWeight, product of:
                1.3321391 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.067999914 = queryNorm
              5.100421 = fieldWeight in 4872, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.375 = fieldNorm(doc=4872)
        0.5 = coord(1/2)
    
  3. Torres, L.; Arias, E.: Stochastic generation of the codebook in vector quantization of images : compression systems (1993) 2.09
    2.0946789 = sum of:
      2.0946789 = product of:
        4.1893578 = sum of:
          4.1893578 = weight(author_txt:arias in 6689) [ClassicSimilarity], result of:
            4.1893578 = score(doc=6689,freq=1.0), product of:
              0.87119967 = queryWeight, product of:
                1.3321391 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.067999914 = queryNorm
              4.808723 = fieldWeight in 6689, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.5 = fieldNorm(doc=6689)
        0.5 = coord(1/2)
    
  4. Leydesdorff, L.: ¬The generation of aggregated journal-journal citation maps on the basis of the CD-ROM version of the Science Citation Index (1994) 1.11
    1.1075891 = sum of:
      1.1075891 = product of:
        2.2151783 = sum of:
          2.2151783 = weight(author_txt:leydesdorff in 8281) [ClassicSimilarity], result of:
            2.2151783 = score(doc=8281,freq=1.0), product of:
              0.49092883 = queryWeight, product of:
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.067999914 = queryNorm
              4.512219 = fieldWeight in 8281, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.625 = fieldNorm(doc=8281)
        0.5 = coord(1/2)
    
  5. Leydesdorff, L.: Why words and co-word cannot map the development of the science (1997) 1.11
    1.1075891 = sum of:
      1.1075891 = product of:
        2.2151783 = sum of:
          2.2151783 = weight(author_txt:leydesdorff in 147) [ClassicSimilarity], result of:
            2.2151783 = score(doc=147,freq=1.0), product of:
              0.49092883 = queryWeight, product of:
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.067999914 = queryNorm
              4.512219 = fieldWeight in 147, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.2195506 = idf(docFreq=87, maxDocs=44218)
                0.625 = fieldNorm(doc=147)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Jiang, X.; Liu, J.: Extracting the evolutionary backbone of scientific domains : the semantic main path network analysis approach based on citation context analysis (2023) 0.29
    0.29193887 = sum of:
      0.29193887 = product of:
        1.0426388 = sum of:
          0.012630395 = weight(abstract_txt:from in 948) [ClassicSimilarity], result of:
            0.012630395 = score(doc=948,freq=2.0), product of:
              0.0517014 = queryWeight, product of:
                1.1276425 = boost
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.016588658 = queryNorm
              0.24429502 = fieldWeight in 948, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.08716903 = weight(abstract_txt:backbone in 948) [ClassicSimilarity], result of:
            0.08716903 = score(doc=948,freq=1.0), product of:
              0.16372013 = queryWeight, product of:
                1.1585392 = boost
                8.518833 = idf(docFreq=23, maxDocs=44218)
                0.016588658 = queryNorm
              0.5324271 = fieldWeight in 948, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.518833 = idf(docFreq=23, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.07403754 = weight(abstract_txt:citation in 948) [ClassicSimilarity], result of:
            0.07403754 = score(doc=948,freq=5.0), product of:
              0.1081887 = queryWeight, product of:
                1.3318816 = boost
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.016588658 = queryNorm
              0.684337 = fieldWeight in 948, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.04612874 = weight(abstract_txt:analysis in 948) [ClassicSimilarity], result of:
            0.04612874 = score(doc=948,freq=5.0), product of:
              0.09034249 = queryWeight, product of:
                1.4906179 = boost
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.016588658 = queryNorm
              0.5105985 = fieldWeight in 948, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.109836504 = weight(abstract_txt:main in 948) [ClassicSimilarity], result of:
            0.109836504 = score(doc=948,freq=7.0), product of:
              0.14400122 = queryWeight, product of:
                1.8819296 = boost
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.016588658 = queryNorm
              0.76274705 = fieldWeight in 948, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.09768736 = weight(abstract_txt:scientific in 948) [ClassicSimilarity], result of:
            0.09768736 = score(doc=948,freq=3.0), product of:
              0.19441621 = queryWeight, product of:
                2.5249681 = boost
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.016588658 = queryNorm
              0.5024651 = fieldWeight in 948, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
          0.61514926 = weight(abstract_txt:path in 948) [ClassicSimilarity], result of:
            0.61514926 = score(doc=948,freq=5.0), product of:
              0.64009047 = queryWeight, product of:
                5.6112027 = boost
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.016588658 = queryNorm
              0.96103483 = fieldWeight in 948, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.0625 = fieldNorm(doc=948)
        0.28 = coord(7/25)
    
  2. Jiang, X.; Zhu, X.; Chen, J.: Main path analysis on cyclic citation networks (2020) 0.25
    0.25069705 = sum of:
      0.25069705 = product of:
        0.89534664 = sum of:
          0.011444185 = weight(abstract_txt:with in 5813) [ClassicSimilarity], result of:
            0.011444185 = score(doc=5813,freq=3.0), product of:
              0.04229125 = queryWeight, product of:
                1.0198717 = boost
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.016588658 = queryNorm
              0.27060407 = fieldWeight in 5813, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.008931038 = weight(abstract_txt:from in 5813) [ClassicSimilarity], result of:
            0.008931038 = score(doc=5813,freq=1.0), product of:
              0.0517014 = queryWeight, product of:
                1.1276425 = boost
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.016588658 = queryNorm
              0.17274266 = fieldWeight in 5813, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.08110406 = weight(abstract_txt:citation in 5813) [ClassicSimilarity], result of:
            0.08110406 = score(doc=5813,freq=6.0), product of:
              0.1081887 = queryWeight, product of:
                1.3318816 = boost
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.016588658 = queryNorm
              0.7496537 = fieldWeight in 5813, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.020629399 = weight(abstract_txt:analysis in 5813) [ClassicSimilarity], result of:
            0.020629399 = score(doc=5813,freq=1.0), product of:
              0.09034249 = queryWeight, product of:
                1.4906179 = boost
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.016588658 = queryNorm
              0.22834657 = fieldWeight in 5813, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.101688854 = weight(abstract_txt:main in 5813) [ClassicSimilarity], result of:
            0.101688854 = score(doc=5813,freq=6.0), product of:
              0.14400122 = queryWeight, product of:
                1.8819296 = boost
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.016588658 = queryNorm
              0.7061666 = fieldWeight in 5813, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.05639983 = weight(abstract_txt:scientific in 5813) [ClassicSimilarity], result of:
            0.05639983 = score(doc=5813,freq=1.0), product of:
              0.19441621 = queryWeight, product of:
                2.5249681 = boost
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.016588658 = queryNorm
              0.2900984 = fieldWeight in 5813, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
          0.61514926 = weight(abstract_txt:path in 5813) [ClassicSimilarity], result of:
            0.61514926 = score(doc=5813,freq=5.0), product of:
              0.64009047 = queryWeight, product of:
                5.6112027 = boost
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.016588658 = queryNorm
              0.96103483 = fieldWeight in 5813, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.0625 = fieldNorm(doc=5813)
        0.28 = coord(7/25)
    
  3. Liu, J.S.; Lu, L.Y.Y.: ¬An integrated approach for main path analysis : development of the Hirsch index as an example (2012) 0.17
    0.17455092 = sum of:
      0.17455092 = product of:
        0.8727546 = sum of:
          0.012630395 = weight(abstract_txt:from in 72) [ClassicSimilarity], result of:
            0.012630395 = score(doc=72,freq=2.0), product of:
              0.0517014 = queryWeight, product of:
                1.1276425 = boost
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.016588658 = queryNorm
              0.24429502 = fieldWeight in 72, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.0625 = fieldNorm(doc=72)
          0.033110593 = weight(abstract_txt:citation in 72) [ClassicSimilarity], result of:
            0.033110593 = score(doc=72,freq=1.0), product of:
              0.1081887 = queryWeight, product of:
                1.3318816 = boost
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.016588658 = queryNorm
              0.30604482 = fieldWeight in 72, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.0625 = fieldNorm(doc=72)
          0.035731163 = weight(abstract_txt:analysis in 72) [ClassicSimilarity], result of:
            0.035731163 = score(doc=72,freq=3.0), product of:
              0.09034249 = queryWeight, product of:
                1.4906179 = boost
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.016588658 = queryNorm
              0.39550784 = fieldWeight in 72, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.0625 = fieldNorm(doc=72)
          0.11742016 = weight(abstract_txt:main in 72) [ClassicSimilarity], result of:
            0.11742016 = score(doc=72,freq=8.0), product of:
              0.14400122 = queryWeight, product of:
                1.8819296 = boost
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.016588658 = queryNorm
              0.8154109 = fieldWeight in 72, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.0625 = fieldNorm(doc=72)
          0.6738623 = weight(abstract_txt:path in 72) [ClassicSimilarity], result of:
            0.6738623 = score(doc=72,freq=6.0), product of:
              0.64009047 = queryWeight, product of:
                5.6112027 = boost
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.016588658 = queryNorm
              1.052761 = fieldWeight in 72, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.0625 = fieldNorm(doc=72)
        0.2 = coord(5/25)
    
  4. Liu, J.S.; Chen, H.-H.; Ho, M.H.-C.; Li, Y.-C.: Citations with different levels of relevancy : tracing the main paths of legal opinions (2014) 0.14
    0.1389518 = sum of:
      0.1389518 = product of:
        0.69475895 = sum of:
          0.012630395 = weight(abstract_txt:from in 1546) [ClassicSimilarity], result of:
            0.012630395 = score(doc=1546,freq=2.0), product of:
              0.0517014 = queryWeight, product of:
                1.1276425 = boost
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.016588658 = queryNorm
              0.24429502 = fieldWeight in 1546, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.0625 = fieldNorm(doc=1546)
          0.087602384 = weight(abstract_txt:citation in 1546) [ClassicSimilarity], result of:
            0.087602384 = score(doc=1546,freq=7.0), product of:
              0.1081887 = queryWeight, product of:
                1.3318816 = boost
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.016588658 = queryNorm
              0.80971843 = fieldWeight in 1546, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.0625 = fieldNorm(doc=1546)
          0.04612874 = weight(abstract_txt:analysis in 1546) [ClassicSimilarity], result of:
            0.04612874 = score(doc=1546,freq=5.0), product of:
              0.09034249 = queryWeight, product of:
                1.4906179 = boost
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.016588658 = queryNorm
              0.5105985 = fieldWeight in 1546, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.0625 = fieldNorm(doc=1546)
          0.07190487 = weight(abstract_txt:main in 1546) [ClassicSimilarity], result of:
            0.07190487 = score(doc=1546,freq=3.0), product of:
              0.14400122 = queryWeight, product of:
                1.8819296 = boost
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.016588658 = queryNorm
              0.49933517 = fieldWeight in 1546, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                4.612661 = idf(docFreq=1192, maxDocs=44218)
                0.0625 = fieldNorm(doc=1546)
          0.47649255 = weight(abstract_txt:path in 1546) [ClassicSimilarity], result of:
            0.47649255 = score(doc=1546,freq=3.0), product of:
              0.64009047 = queryWeight, product of:
                5.6112027 = boost
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.016588658 = queryNorm
              0.7444144 = fieldWeight in 1546, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.8766055 = idf(docFreq=123, maxDocs=44218)
                0.0625 = fieldNorm(doc=1546)
        0.2 = coord(5/25)
    
  5. Small, H.G.: Structural dynamics of scientific literature (2015) 0.12
    0.1191748 = sum of:
      0.1191748 = product of:
        0.37242126 = sum of:
          0.008259129 = weight(abstract_txt:with in 2356) [ClassicSimilarity], result of:
            0.008259129 = score(doc=2356,freq=1.0), product of:
              0.04229125 = queryWeight, product of:
                1.0198717 = boost
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.016588658 = queryNorm
              0.19529167 = fieldWeight in 2356, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.4997334 = idf(docFreq=9868, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.019336265 = weight(abstract_txt:from in 2356) [ClassicSimilarity], result of:
            0.019336265 = score(doc=2356,freq=3.0), product of:
              0.0517014 = queryWeight, product of:
                1.1276425 = boost
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.016588658 = queryNorm
              0.37399885 = fieldWeight in 2356, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.7638826 = idf(docFreq=7577, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.03488072 = weight(abstract_txt:possible in 2356) [ClassicSimilarity], result of:
            0.03488072 = score(doc=2356,freq=1.0), product of:
              0.09652821 = queryWeight, product of:
                1.2580613 = boost
                4.6253138 = idf(docFreq=1177, maxDocs=44218)
                0.016588658 = queryNorm
              0.36135262 = fieldWeight in 2356, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6253138 = idf(docFreq=1177, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.04138824 = weight(abstract_txt:citation in 2356) [ClassicSimilarity], result of:
            0.04138824 = score(doc=2356,freq=1.0), product of:
              0.1081887 = queryWeight, product of:
                1.3318816 = boost
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.016588658 = queryNorm
              0.38255602 = fieldWeight in 2356, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.896717 = idf(docFreq=897, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.09072384 = weight(abstract_txt:change in 2356) [ClassicSimilarity], result of:
            0.09072384 = score(doc=2356,freq=3.0), product of:
              0.12658176 = queryWeight, product of:
                1.4406558 = boost
                5.29663 = idf(docFreq=601, maxDocs=44218)
                0.016588658 = queryNorm
              0.7167213 = fieldWeight in 2356, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.29663 = idf(docFreq=601, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.025786746 = weight(abstract_txt:analysis in 2356) [ClassicSimilarity], result of:
            0.025786746 = score(doc=2356,freq=1.0), product of:
              0.09034249 = queryWeight, product of:
                1.4906179 = boost
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.016588658 = queryNorm
              0.2854332 = fieldWeight in 2356, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6535451 = idf(docFreq=3112, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.05234457 = weight(abstract_txt:documents in 2356) [ClassicSimilarity], result of:
            0.05234457 = score(doc=2356,freq=2.0), product of:
              0.114956126 = queryWeight, product of:
                1.6814593 = boost
                4.1213026 = idf(docFreq=1949, maxDocs=44218)
                0.016588658 = queryNorm
              0.4553439 = fieldWeight in 2356, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1213026 = idf(docFreq=1949, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
          0.09970176 = weight(abstract_txt:scientific in 2356) [ClassicSimilarity], result of:
            0.09970176 = score(doc=2356,freq=2.0), product of:
              0.19441621 = queryWeight, product of:
                2.5249681 = boost
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.016588658 = queryNorm
              0.5128264 = fieldWeight in 2356, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6415744 = idf(docFreq=1158, maxDocs=44218)
                0.078125 = fieldNorm(doc=2356)
        0.32 = coord(8/25)