Document (#38045)

Author

Liu, X.
Zhang, J.
Guo, C.

Title

Full-text citation analysis : a new method to enhance scholarly networks

Source

Journal of the American Society for Information Science and Technology. 64(2013) no.9, S.1852-1863

Year

2013

Abstract

In this article, we use innovative full-text citation analysis along with supervised topic modeling and network-analysis algorithms to enhance classical bibliometric analysis and publication/author/venue ranking. By utilizing citation contexts extracted from a large number of full-text publications, each citation or publication is represented by a probability distribution over a set of predefined topics, where each topic is labeled by an author-contributed keyword. We then used publication/citation topic distribution to generate a citation graph with vertex prior and edge transitioning probability distributions. The publication importance score for each given topic is calculated by PageRank with edge and vertex prior distributions. To evaluate this work, we sampled 104 topics (labeled with keywords) in review papers. The cited publications of each review paper are assumed to be "important publications" for the target topic (keyword), and we use these cited publications to validate our topic-ranking result and to compare different publication-ranking lists. Evaluation results show that full-text citation and publication content prior topic distribution, along with the classical PageRank algorithm can significantly enhance bibliometric analysis and scientific publication ranking performance, comparing with term frequency-inverted document frequency (tf-idf), language model, BM25, PageRank, and PageRank + language model (p < .001), for academic information retrieval (IR) systems.

Theme

Informetrie

Similar documents (author)

1. Zhang, M.; Zhang, Y.: Professional organizations in Twittersphere : an empirical study of U.S. library and information science professional organizations-related Tweets (2020) 4.54

   4.5423746 = sum of:
     4.5423746 = weight(author_txt:zhang in 5775) [ClassicSimilarity], result of:
       4.5423746 = fieldWeight in 5775, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         6.4238877 = idf(docFreq=194, maxDocs=44218)
         0.5 = fieldNorm(doc=5775)
   

2. Zhang, Y.; Zhang, C.: Enhancing keyphrase extraction from microblogs using human reading time (2021) 4.54

   4.5423746 = sum of:
     4.5423746 = weight(author_txt:zhang in 237) [ClassicSimilarity], result of:
       4.5423746 = fieldWeight in 237, product of:
         1.4142135 = tf(freq=2.0), with freq of:
           2.0 = termFreq=2.0
         6.4238877 = idf(docFreq=194, maxDocs=44218)
         0.5 = fieldNorm(doc=237)
   

3. Zhang, J.: TOFIR: A tool of facilitating information retrieval : introduce a visual retrieval model (2001) 4.01

   4.01493 = sum of:
     4.01493 = weight(author_txt:zhang in 7711) [ClassicSimilarity], result of:
       4.01493 = fieldWeight in 7711, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         6.4238877 = idf(docFreq=194, maxDocs=44218)
         0.625 = fieldNorm(doc=7711)
   

4. Zhang, A.: Multimedia file formats on the Internet : a beginner's guide for PC users (1995) 4.01

   4.01493 = sum of:
     4.01493 = weight(author_txt:zhang in 3212) [ClassicSimilarity], result of:
       4.01493 = fieldWeight in 3212, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         6.4238877 = idf(docFreq=194, maxDocs=44218)
         0.625 = fieldNorm(doc=3212)
   

5. Zhang, J.: ¬A representational analysis of relational information displays (1996) 4.01

   4.01493 = sum of:
     4.01493 = weight(author_txt:zhang in 6403) [ClassicSimilarity], result of:
       4.01493 = fieldWeight in 6403, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         6.4238877 = idf(docFreq=194, maxDocs=44218)
         0.625 = fieldNorm(doc=6403)
   

Similar documents (content)

1. Ding, Y.: Topic-based PageRank on author cocitation networks (2011) 0.33

   0.3321391 = sum of:
     0.3321391 = product of:
       1.1862111 = sum of:
         0.012302012 = weight(abstract_txt:with in 4348) [ClassicSimilarity], result of:
           0.012302012 = score(doc=4348,freq=1.0), product of:
             0.06299302 = queryWeight, product of:
               1.3126668 = boost
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.01919748 = queryNorm
             0.19529167 = fieldWeight in 4348, 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=4348)
         0.09762148 = weight(abstract_txt:distribution in 4348) [ClassicSimilarity], result of:
           0.09762148 = score(doc=4348,freq=2.0), product of:
             0.1578769 = queryWeight, product of:
               1.4694424 = boost
               5.596568 = idf(docFreq=445, maxDocs=44218)
               0.01919748 = queryNorm
             0.61833924 = fieldWeight in 4348, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.596568 = idf(docFreq=445, maxDocs=44218)
               0.078125 = fieldNorm(doc=4348)
         0.032007903 = weight(abstract_txt:analysis in 4348) [ClassicSimilarity], result of:
           0.032007903 = score(doc=4348,freq=1.0), product of:
             0.11213798 = queryWeight, product of:
               1.5987995 = boost
               3.6535451 = idf(docFreq=3112, maxDocs=44218)
               0.01919748 = queryNorm
             0.2854332 = fieldWeight in 4348, 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=4348)
         0.07679527 = weight(abstract_txt:publications in 4348) [ClassicSimilarity], result of:
           0.07679527 = score(doc=4348,freq=1.0), product of:
             0.18656674 = queryWeight, product of:
               1.8445047 = boost
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.01919748 = queryNorm
             0.4116236 = fieldWeight in 4348, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.078125 = fieldNorm(doc=4348)
         0.15960714 = weight(abstract_txt:ranking in 4348) [ClassicSimilarity], result of:
           0.15960714 = score(doc=4348,freq=3.0), product of:
             0.21067145 = queryWeight, product of:
               1.9600425 = boost
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.01919748 = queryNorm
             0.75761163 = fieldWeight in 4348, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.078125 = fieldNorm(doc=4348)
         0.5158999 = weight(abstract_txt:pagerank in 4348) [ClassicSimilarity], result of:
           0.5158999 = score(doc=4348,freq=5.0), product of:
             0.38844678 = queryWeight, product of:
               2.661512 = boost
               7.602543 = idf(docFreq=59, maxDocs=44218)
               0.01919748 = queryNorm
             1.3281096 = fieldWeight in 4348, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.602543 = idf(docFreq=59, maxDocs=44218)
               0.078125 = fieldNorm(doc=4348)
         0.29197738 = weight(abstract_txt:topic in 4348) [ClassicSimilarity], result of:
           0.29197738 = score(doc=4348,freq=6.0), product of:
             0.30139747 = queryWeight, product of:
               3.1013548 = boost
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.01919748 = queryNorm
             0.9687453 = fieldWeight in 4348, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.078125 = fieldNorm(doc=4348)
       0.28 = coord(7/25)
   

2. Jiang, Z.; Liu, X.; Chen, Y.: Recovering uncaptured citations in a scholarly network : a two-step citation analysis to estimate publication importance (2016) 0.27

   0.26839873 = sum of:
     0.26839873 = product of:
       0.8387461 = sum of:
         0.057781857 = weight(abstract_txt:classical in 3018) [ClassicSimilarity], result of:
           0.057781857 = score(doc=3018,freq=1.0), product of:
             0.1421463 = queryWeight, product of:
               1.1384538 = boost
               6.5039306 = idf(docFreq=179, maxDocs=44218)
               0.01919748 = queryNorm
             0.40649566 = fieldWeight in 3018, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5039306 = idf(docFreq=179, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.00984161 = weight(abstract_txt:with in 3018) [ClassicSimilarity], result of:
           0.00984161 = score(doc=3018,freq=1.0), product of:
             0.06299302 = queryWeight, product of:
               1.3126668 = boost
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.01919748 = queryNorm
             0.15623334 = fieldWeight in 3018, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.059530795 = weight(abstract_txt:enhance in 3018) [ClassicSimilarity], result of:
           0.059530795 = score(doc=3018,freq=1.0), product of:
             0.16598396 = queryWeight, product of:
               1.5066984 = boost
               5.7384624 = idf(docFreq=386, maxDocs=44218)
               0.01919748 = queryNorm
             0.3586539 = fieldWeight in 3018, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.7384624 = idf(docFreq=386, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.04435145 = weight(abstract_txt:analysis in 3018) [ClassicSimilarity], result of:
           0.04435145 = score(doc=3018,freq=3.0), product of:
             0.11213798 = queryWeight, product of:
               1.5987995 = boost
               3.6535451 = idf(docFreq=3112, maxDocs=44218)
               0.01919748 = queryNorm
             0.39550784 = fieldWeight in 3018, 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=3018)
         0.10641065 = weight(abstract_txt:publications in 3018) [ClassicSimilarity], result of:
           0.10641065 = score(doc=3018,freq=3.0), product of:
             0.18656674 = queryWeight, product of:
               1.8445047 = boost
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.01919748 = queryNorm
             0.5703624 = fieldWeight in 3018, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.104254946 = weight(abstract_txt:ranking in 3018) [ClassicSimilarity], result of:
           0.104254946 = score(doc=3018,freq=2.0), product of:
             0.21067145 = queryWeight, product of:
               1.9600425 = boost
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.01919748 = queryNorm
             0.49486983 = fieldWeight in 3018, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.29897678 = weight(abstract_txt:citation in 3018) [ClassicSimilarity], result of:
           0.29897678 = score(doc=3018,freq=12.0), product of:
             0.28200826 = queryWeight, product of:
               2.9999402 = boost
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.01919748 = queryNorm
             1.0601703 = fieldWeight in 3018, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
         0.15759796 = weight(abstract_txt:publication in 3018) [ClassicSimilarity], result of:
           0.15759796 = score(doc=3018,freq=2.0), product of:
             0.3343908 = queryWeight, product of:
               3.2666967 = boost
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.01919748 = queryNorm
             0.47129872 = fieldWeight in 3018, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.0625 = fieldNorm(doc=3018)
       0.32 = coord(8/25)
   

3. Kim, M.; Baek, I.; Song, M.: Topic diffusion analysis of a weighted citation network in biomedical literature (2018) 0.27

   0.26571795 = sum of:
     0.26571795 = product of:
       0.9489927 = sum of:
         0.10228488 = weight(abstract_txt:cited in 4036) [ClassicSimilarity], result of:
           0.10228488 = score(doc=4036,freq=4.0), product of:
             0.11292468 = queryWeight, product of:
               1.0147103 = boost
               5.79699 = idf(docFreq=364, maxDocs=44218)
               0.01919748 = queryNorm
             0.90577966 = fieldWeight in 4036, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               5.79699 = idf(docFreq=364, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
         0.036685765 = weight(abstract_txt:each in 4036) [ClassicSimilarity], result of:
           0.036685765 = score(doc=4036,freq=1.0), product of:
             0.11401 = queryWeight, product of:
               1.4418966 = boost
               4.118742 = idf(docFreq=1954, maxDocs=44218)
               0.01919748 = queryNorm
             0.32177672 = fieldWeight in 4036, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.118742 = idf(docFreq=1954, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
         0.032007903 = weight(abstract_txt:analysis in 4036) [ClassicSimilarity], result of:
           0.032007903 = score(doc=4036,freq=1.0), product of:
             0.11213798 = queryWeight, product of:
               1.5987995 = boost
               3.6535451 = idf(docFreq=3112, maxDocs=44218)
               0.01919748 = queryNorm
             0.2854332 = fieldWeight in 4036, 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=4036)
         0.10860491 = weight(abstract_txt:publications in 4036) [ClassicSimilarity], result of:
           0.10860491 = score(doc=4036,freq=2.0), product of:
             0.18656674 = queryWeight, product of:
               1.8445047 = boost
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.01919748 = queryNorm
             0.58212364 = fieldWeight in 4036, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
         0.32365188 = weight(abstract_txt:citation in 4036) [ClassicSimilarity], result of:
           0.32365188 = score(doc=4036,freq=9.0), product of:
             0.28200826 = queryWeight, product of:
               2.9999402 = boost
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.01919748 = queryNorm
             1.1476681 = fieldWeight in 4036, product of:
               3.0 = tf(freq=9.0), with freq of:
                 9.0 = termFreq=9.0
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
         0.20645918 = weight(abstract_txt:topic in 4036) [ClassicSimilarity], result of:
           0.20645918 = score(doc=4036,freq=3.0), product of:
             0.30139747 = queryWeight, product of:
               3.1013548 = boost
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.01919748 = queryNorm
             0.6850063 = fieldWeight in 4036, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.062254 = idf(docFreq=760, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
         0.13929823 = weight(abstract_txt:publication in 4036) [ClassicSimilarity], result of:
           0.13929823 = score(doc=4036,freq=1.0), product of:
             0.3343908 = queryWeight, product of:
               3.2666967 = boost
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.01919748 = queryNorm
             0.41657317 = fieldWeight in 4036, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.078125 = fieldNorm(doc=4036)
       0.28 = coord(7/25)
   

4. Waltman, L.; Calero-Medina, C.; Kosten, J.; Noyons, E.C.M.; Tijssen, R.J.W.; Eck, N.J. van; Leeuwen, T.N. van; Raan, A.F.J. van; Visser, M.S.; Wouters, P.: ¬The Leiden ranking 2011/2012 : data collection, indicators, and interpretation (2012) 0.23

   0.22712167 = sum of:
     0.22712167 = product of:
       0.70975524 = sum of:
         0.04091395 = weight(abstract_txt:cited in 514) [ClassicSimilarity], result of:
           0.04091395 = score(doc=514,freq=1.0), product of:
             0.11292468 = queryWeight, product of:
               1.0147103 = boost
               5.79699 = idf(docFreq=364, maxDocs=44218)
               0.01919748 = queryNorm
             0.36231187 = fieldWeight in 514, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.79699 = idf(docFreq=364, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.049365338 = weight(abstract_txt:bibliometric in 514) [ClassicSimilarity], result of:
           0.049365338 = score(doc=514,freq=1.0), product of:
             0.12798409 = queryWeight, product of:
               1.0802534 = boost
               6.1714344 = idf(docFreq=250, maxDocs=44218)
               0.01919748 = queryNorm
             0.38571465 = fieldWeight in 514, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1714344 = idf(docFreq=250, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.00984161 = weight(abstract_txt:with in 514) [ClassicSimilarity], result of:
           0.00984161 = score(doc=514,freq=1.0), product of:
             0.06299302 = queryWeight, product of:
               1.3126668 = boost
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.01919748 = queryNorm
             0.15623334 = fieldWeight in 514, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               2.4997334 = idf(docFreq=9868, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.05010651 = weight(abstract_txt:full in 514) [ClassicSimilarity], result of:
           0.05010651 = score(doc=514,freq=1.0), product of:
             0.16285984 = queryWeight, product of:
               1.7233348 = boost
               4.922663 = idf(docFreq=874, maxDocs=44218)
               0.01919748 = queryNorm
             0.30766645 = fieldWeight in 514, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.922663 = idf(docFreq=874, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.10641065 = weight(abstract_txt:publications in 514) [ClassicSimilarity], result of:
           0.10641065 = score(doc=514,freq=3.0), product of:
             0.18656674 = queryWeight, product of:
               1.8445047 = boost
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.01919748 = queryNorm
             0.5703624 = fieldWeight in 514, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.25537142 = weight(abstract_txt:ranking in 514) [ClassicSimilarity], result of:
           0.25537142 = score(doc=514,freq=12.0), product of:
             0.21067145 = queryWeight, product of:
               1.9600425 = boost
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.01919748 = queryNorm
             1.2121786 = fieldWeight in 514, product of:
               3.4641016 = tf(freq=12.0), with freq of:
                 12.0 = termFreq=12.0
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
         0.08630717 = weight(abstract_txt:citation in 514) [ClassicSimilarity], result of:
           0.08630717 = score(doc=514,freq=1.0), product of:
             0.28200826 = queryWeight, product of:
               2.9999402 = boost
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.01919748 = queryNorm
             0.30604482 = fieldWeight in 514, 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=514)
         0.11143859 = weight(abstract_txt:publication in 514) [ClassicSimilarity], result of:
           0.11143859 = score(doc=514,freq=1.0), product of:
             0.3343908 = queryWeight, product of:
               3.2666967 = boost
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.01919748 = queryNorm
             0.33325854 = fieldWeight in 514, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.0625 = fieldNorm(doc=514)
       0.32 = coord(8/25)
   

5. Bletsas, A.; Sahalos, J.N.: Hirsch index rankings require scaling and higher moment (2009) 0.22

   0.21911494 = sum of:
     0.21911494 = product of:
       0.7825534 = sum of:
         0.087266415 = weight(abstract_txt:bibliometric in 3141) [ClassicSimilarity], result of:
           0.087266415 = score(doc=3141,freq=2.0), product of:
             0.12798409 = queryWeight, product of:
               1.0802534 = boost
               6.1714344 = idf(docFreq=250, maxDocs=44218)
               0.01919748 = queryNorm
             0.6818536 = fieldWeight in 3141, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.1714344 = idf(docFreq=250, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
         0.08567012 = weight(abstract_txt:probability in 3141) [ClassicSimilarity], result of:
           0.08567012 = score(doc=3141,freq=1.0), product of:
             0.1592774 = queryWeight, product of:
               1.2051045 = boost
               6.8847027 = idf(docFreq=122, maxDocs=44218)
               0.01919748 = queryNorm
             0.5378674 = fieldWeight in 3141, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8847027 = idf(docFreq=122, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
         0.09762148 = weight(abstract_txt:distribution in 3141) [ClassicSimilarity], result of:
           0.09762148 = score(doc=3141,freq=2.0), product of:
             0.1578769 = queryWeight, product of:
               1.4694424 = boost
               5.596568 = idf(docFreq=445, maxDocs=44218)
               0.01919748 = queryNorm
             0.61833924 = fieldWeight in 3141, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.596568 = idf(docFreq=445, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
         0.07679527 = weight(abstract_txt:publications in 3141) [ClassicSimilarity], result of:
           0.07679527 = score(doc=3141,freq=1.0), product of:
             0.18656674 = queryWeight, product of:
               1.8445047 = boost
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.01919748 = queryNorm
             0.4116236 = fieldWeight in 3141, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.268782 = idf(docFreq=618, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
         0.13031867 = weight(abstract_txt:ranking in 3141) [ClassicSimilarity], result of:
           0.13031867 = score(doc=3141,freq=2.0), product of:
             0.21067145 = queryWeight, product of:
               1.9600425 = boost
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.01919748 = queryNorm
             0.61858726 = fieldWeight in 3141, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.598813 = idf(docFreq=444, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
         0.10788396 = weight(abstract_txt:citation in 3141) [ClassicSimilarity], result of:
           0.10788396 = score(doc=3141,freq=1.0), product of:
             0.28200826 = queryWeight, product of:
               2.9999402 = boost
               4.896717 = idf(docFreq=897, maxDocs=44218)
               0.01919748 = queryNorm
             0.38255602 = fieldWeight in 3141, 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=3141)
         0.19699745 = weight(abstract_txt:publication in 3141) [ClassicSimilarity], result of:
           0.19699745 = score(doc=3141,freq=2.0), product of:
             0.3343908 = queryWeight, product of:
               3.2666967 = boost
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.01919748 = queryNorm
             0.5891234 = fieldWeight in 3141, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.3321366 = idf(docFreq=580, maxDocs=44218)
               0.078125 = fieldNorm(doc=3141)
       0.28 = coord(7/25)