Document (#40018)

Author
Jiang, X.
Sun, X.
Yang, Z.
Zhuge, H.
Lapshinova-Koltunski, E.
Yao, J.
Title
Exploiting heterogeneous scientific literature networks to combat ranking bias : evidence from the computational linguistics area
Source
Journal of the Association for Information Science and Technology. 67(2016) no.7, S.1679-1702
Year
2016
Abstract
It is important to help researchers find valuable papers from a large literature collection. To this end, many graph-based ranking algorithms have been proposed. However, most of these algorithms suffer from the problem of ranking bias. Ranking bias hurts the usefulness of a ranking algorithm because it returns a ranking list with an undesirable time distribution. This paper is a focused study on how to alleviate ranking bias by leveraging the heterogeneous network structure of the literature collection. We propose a new graph-based ranking algorithm, MutualRank, that integrates mutual reinforcement relationships among networks of papers, researchers, and venues to achieve a more synthetic, accurate, and less-biased ranking than previous methods. MutualRank provides a unified model that involves both intra- and inter-network information for ranking papers, researchers, and venues simultaneously. We use the ACL Anthology Network as the benchmark data set and construct the gold standard from computer linguistics course websites of well-known universities and two well-known textbooks. The experimental results show that MutualRank greatly outperforms the state-of-the-art competitors, including PageRank, HITS, CoRank, Future Rank, and P-Rank, in ranking papers in both improving ranking effectiveness and alleviating ranking bias. Rankings of researchers and venues by MutualRank are also quite reasonable.
Content
Vgl.: http://onlinelibrary.wiley.com/doi/10.1002/asi.23463/abstract.
Theme
Retrievalalgorithmen

Similar documents (author)

  1. Jiang, D.: ¬A feasibility study of the outsourcing of cataloging in the academic libraries (1998) 2.05
    2.0513275 = sum of:
      2.0513275 = product of:
        4.102655 = sum of:
          4.102655 = weight(author_txt:jiang in 5622) [ClassicSimilarity], result of:
            4.102655 = score(doc=5622,freq=1.0), product of:
              0.7970449 = queryWeight, product of:
                1.1488191 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.084242046 = queryNorm
              5.1473327 = fieldWeight in 5622, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.625 = fieldNorm(doc=5622)
        0.5 = coord(1/2)
    
  2. Jiang, S.Y.: Lost in translation : the treatment of Chinese classics in the Library of Congress Classification (2007) 2.05
    2.0513275 = sum of:
      2.0513275 = product of:
        4.102655 = sum of:
          4.102655 = weight(author_txt:jiang in 1773) [ClassicSimilarity], result of:
            4.102655 = score(doc=1773,freq=1.0), product of:
              0.7970449 = queryWeight, product of:
                1.1488191 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.084242046 = queryNorm
              5.1473327 = fieldWeight in 1773, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.625 = fieldNorm(doc=1773)
        0.5 = coord(1/2)
    
  3. Jiang, T.: Architektur und Anwendungen des kollaborativen Lernsystems K3 (2008) 2.05
    2.0513275 = sum of:
      2.0513275 = product of:
        4.102655 = sum of:
          4.102655 = weight(author_txt:jiang in 2391) [ClassicSimilarity], result of:
            4.102655 = score(doc=2391,freq=1.0), product of:
              0.7970449 = queryWeight, product of:
                1.1488191 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.084242046 = queryNorm
              5.1473327 = fieldWeight in 2391, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.625 = fieldNorm(doc=2391)
        0.5 = coord(1/2)
    
  4. Jiang, L.; Wagner, C.: Perceptions of justice or injustice as determinants of contributor defections from online communities (2015) 1.64
    1.641062 = sum of:
      1.641062 = product of:
        3.282124 = sum of:
          3.282124 = weight(author_txt:jiang in 3045) [ClassicSimilarity], result of:
            3.282124 = score(doc=3045,freq=1.0), product of:
              0.7970449 = queryWeight, product of:
                1.1488191 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.084242046 = queryNorm
              4.117866 = fieldWeight in 3045, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.5 = fieldNorm(doc=3045)
        0.5 = coord(1/2)
    
  5. Jiang, X.; Liu, J.: Extracting the evolutionary backbone of scientific domains : the semantic main path network analysis approach based on citation context analysis (2023) 1.64
    1.641062 = sum of:
      1.641062 = product of:
        3.282124 = sum of:
          3.282124 = weight(author_txt:jiang in 1949) [ClassicSimilarity], result of:
            3.282124 = score(doc=1949,freq=1.0), product of:
              0.7970449 = queryWeight, product of:
                1.1488191 = boost
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.084242046 = queryNorm
              4.117866 = fieldWeight in 1949, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.235732 = idf(docFreq=31, maxDocs=44421)
                0.5 = fieldNorm(doc=1949)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Radev, D.R.; Joseph, M.T.; Gibson, B.; Muthukrishnan, P.: ¬A bibliometric and network analysis of the field of computational linguistics (2016) 0.25
    0.24667224 = sum of:
      0.24667224 = product of:
        0.7708508 = sum of:
          0.10757044 = weight(abstract_txt:anthology in 3764) [ClassicSimilarity], result of:
            0.10757044 = score(doc=3764,freq=1.0), product of:
              0.1275842 = queryWeight, product of:
                1.0791014 = boost
                8.993418 = idf(docFreq=14, maxDocs=44421)
                0.013146492 = queryNorm
              0.8431329 = fieldWeight in 3764, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.993418 = idf(docFreq=14, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.042044945 = weight(abstract_txt:collection in 3764) [ClassicSimilarity], result of:
            0.042044945 = score(doc=3764,freq=2.0), product of:
              0.06820415 = queryWeight, product of:
                1.1157945 = boost
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.013146492 = queryNorm
              0.6164573 = fieldWeight in 3764, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.649612 = idf(docFreq=1154, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.039943792 = weight(abstract_txt:networks in 3764) [ClassicSimilarity], result of:
            0.039943792 = score(doc=3764,freq=1.0), product of:
              0.08304455 = queryWeight, product of:
                1.2312164 = boost
                5.1305847 = idf(docFreq=713, maxDocs=44421)
                0.013146492 = queryNorm
              0.48099232 = fieldWeight in 3764, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.1305847 = idf(docFreq=713, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.012428597 = weight(abstract_txt:from in 3764) [ClassicSimilarity], result of:
            0.012428597 = score(doc=3764,freq=1.0), product of:
              0.04804369 = queryWeight, product of:
                1.3243781 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.013146492 = queryNorm
              0.25869364 = fieldWeight in 3764, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.086791486 = weight(abstract_txt:linguistics in 3764) [ClassicSimilarity], result of:
            0.086791486 = score(doc=3764,freq=1.0), product of:
              0.13931452 = queryWeight, product of:
                1.5946927 = boost
                6.6452217 = idf(docFreq=156, maxDocs=44421)
                0.013146492 = queryNorm
              0.62298954 = fieldWeight in 3764, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.6452217 = idf(docFreq=156, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.062029716 = weight(abstract_txt:network in 3764) [ClassicSimilarity], result of:
            0.062029716 = score(doc=3764,freq=2.0), product of:
              0.1011809 = queryWeight, product of:
                1.6644614 = boost
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.013146492 = queryNorm
              0.61305755 = fieldWeight in 3764, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.12211453 = weight(abstract_txt:papers in 3764) [ClassicSimilarity], result of:
            0.12211453 = score(doc=3764,freq=2.0), product of:
              0.17492686 = queryWeight, product of:
                2.527098 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.013146492 = queryNorm
              0.69808906 = fieldWeight in 3764, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
          0.29792723 = weight(abstract_txt:venues in 3764) [ClassicSimilarity], result of:
            0.29792723 = score(doc=3764,freq=1.0), product of:
              0.362896 = queryWeight, product of:
                3.1522129 = boost
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.013146492 = queryNorm
              0.8209714 = fieldWeight in 3764, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.757029 = idf(docFreq=18, maxDocs=44421)
                0.09375 = fieldNorm(doc=3764)
        0.32 = coord(8/25)
    
  2. Cheng, S.; YunTao, P.; JunPeng, Y.; Hong, G.; ZhengLu, Y.; ZhiYu, H.: PageRank, HITS and impact factor for journal ranking (2009) 0.23
    0.23175685 = sum of:
      0.23175685 = product of:
        0.7242402 = sum of:
          0.02772759 = weight(abstract_txt:known in 3513) [ClassicSimilarity], result of:
            0.02772759 = score(doc=3513,freq=1.0), product of:
              0.08531274 = queryWeight, product of:
                1.2479172 = boost
                5.200178 = idf(docFreq=665, maxDocs=44421)
                0.013146492 = queryNorm
              0.32501113 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.200178 = idf(docFreq=665, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.008285732 = weight(abstract_txt:from in 3513) [ClassicSimilarity], result of:
            0.008285732 = score(doc=3513,freq=1.0), product of:
              0.04804369 = queryWeight, product of:
                1.3243781 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.013146492 = queryNorm
              0.17246243 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.03651691 = weight(abstract_txt:algorithms in 3513) [ClassicSimilarity], result of:
            0.03651691 = score(doc=3513,freq=1.0), product of:
              0.10250266 = queryWeight, product of:
                1.367875 = boost
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.013146492 = queryNorm
              0.3562533 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.0634145 = weight(abstract_txt:algorithm in 3513) [ClassicSimilarity], result of:
            0.0634145 = score(doc=3513,freq=3.0), product of:
              0.10268123 = queryWeight, product of:
                1.3690659 = boost
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.013146492 = queryNorm
              0.6175861 = fieldWeight in 3513, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.05213269 = weight(abstract_txt:rank in 3513) [ClassicSimilarity], result of:
            0.05213269 = score(doc=3513,freq=1.0), product of:
              0.12996085 = queryWeight, product of:
                1.5402282 = boost
                6.418264 = idf(docFreq=196, maxDocs=44421)
                0.013146492 = queryNorm
              0.4011415 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.418264 = idf(docFreq=196, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.029241089 = weight(abstract_txt:network in 3513) [ClassicSimilarity], result of:
            0.029241089 = score(doc=3513,freq=1.0), product of:
              0.1011809 = queryWeight, product of:
                1.6644614 = boost
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.013146492 = queryNorm
              0.2889981 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.057565343 = weight(abstract_txt:papers in 3513) [ClassicSimilarity], result of:
            0.057565343 = score(doc=3513,freq=1.0), product of:
              0.17492686 = queryWeight, product of:
                2.527098 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.013146492 = queryNorm
              0.32908234 = fieldWeight in 3513, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
          0.44935635 = weight(abstract_txt:ranking in 3513) [ClassicSimilarity], result of:
            0.44935635 = score(doc=3513,freq=4.0), product of:
              0.6423191 = queryWeight, product of:
                8.729933 = boost
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.013146492 = queryNorm
              0.6995843 = fieldWeight in 3513, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.0625 = fieldNorm(doc=3513)
        0.32 = coord(8/25)
    
  3. Wei, F.; Li, W.; Lu, Q.; He, Y.: Applying two-level reinforcement ranking in query-oriented multidocument summarization (2009) 0.20
    0.2019706 = sum of:
      0.2019706 = product of:
        0.8415442 = sum of:
          0.11909747 = weight(abstract_txt:reinforcement in 107) [ClassicSimilarity], result of:
            0.11909747 = score(doc=107,freq=3.0), product of:
              0.1240577 = queryWeight, product of:
                1.0640835 = boost
                8.868255 = idf(docFreq=16, maxDocs=44421)
                0.013146492 = queryNorm
              0.9600167 = fieldWeight in 107, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                8.868255 = idf(docFreq=16, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
          0.07303382 = weight(abstract_txt:algorithms in 107) [ClassicSimilarity], result of:
            0.07303382 = score(doc=107,freq=4.0), product of:
              0.10250266 = queryWeight, product of:
                1.367875 = boost
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.013146492 = queryNorm
              0.7125066 = fieldWeight in 107, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
          0.051777717 = weight(abstract_txt:algorithm in 107) [ClassicSimilarity], result of:
            0.051777717 = score(doc=107,freq=2.0), product of:
              0.10268123 = queryWeight, product of:
                1.3690659 = boost
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.013146492 = queryNorm
              0.5042569 = fieldWeight in 107, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
          0.05213269 = weight(abstract_txt:rank in 107) [ClassicSimilarity], result of:
            0.05213269 = score(doc=107,freq=1.0), product of:
              0.12996085 = queryWeight, product of:
                1.5402282 = boost
                6.418264 = idf(docFreq=196, maxDocs=44421)
                0.013146492 = queryNorm
              0.4011415 = fieldWeight in 107, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.418264 = idf(docFreq=196, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
          0.096146174 = weight(abstract_txt:graph in 107) [ClassicSimilarity], result of:
            0.096146174 = score(doc=107,freq=3.0), product of:
              0.1355148 = queryWeight, product of:
                1.5727953 = boost
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.013146492 = queryNorm
              0.7094884 = fieldWeight in 107, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
          0.44935635 = weight(abstract_txt:ranking in 107) [ClassicSimilarity], result of:
            0.44935635 = score(doc=107,freq=4.0), product of:
              0.6423191 = queryWeight, product of:
                8.729933 = boost
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.013146492 = queryNorm
              0.6995843 = fieldWeight in 107, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.0625 = fieldNorm(doc=107)
        0.24 = coord(6/25)
    
  4. Liu, X.; Zhang, J.; Guo, C.: Full-text citation analysis : a new method to enhance scholarly networks (2013) 0.19
    0.1884646 = sum of:
      0.1884646 = product of:
        0.67308784 = sum of:
          0.008285732 = weight(abstract_txt:from in 2044) [ClassicSimilarity], result of:
            0.008285732 = score(doc=2044,freq=1.0), product of:
              0.04804369 = queryWeight, product of:
                1.3243781 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.013146492 = queryNorm
              0.17246243 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.03651691 = weight(abstract_txt:algorithms in 2044) [ClassicSimilarity], result of:
            0.03651691 = score(doc=2044,freq=1.0), product of:
              0.10250266 = queryWeight, product of:
                1.367875 = boost
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.013146492 = queryNorm
              0.3562533 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.036612377 = weight(abstract_txt:algorithm in 2044) [ClassicSimilarity], result of:
            0.036612377 = score(doc=2044,freq=1.0), product of:
              0.10268123 = queryWeight, product of:
                1.3690659 = boost
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.013146492 = queryNorm
              0.35656348 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.05551002 = weight(abstract_txt:graph in 2044) [ClassicSimilarity], result of:
            0.05551002 = score(doc=2044,freq=1.0), product of:
              0.1355148 = queryWeight, product of:
                1.5727953 = boost
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.013146492 = queryNorm
              0.40962332 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.029241089 = weight(abstract_txt:network in 2044) [ClassicSimilarity], result of:
            0.029241089 = score(doc=2044,freq=1.0), product of:
              0.1011809 = queryWeight, product of:
                1.6644614 = boost
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.013146492 = queryNorm
              0.2889981 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.6239696 = idf(docFreq=1184, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.057565343 = weight(abstract_txt:papers in 2044) [ClassicSimilarity], result of:
            0.057565343 = score(doc=2044,freq=1.0), product of:
              0.17492686 = queryWeight, product of:
                2.527098 = boost
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.013146492 = queryNorm
              0.32908234 = fieldWeight in 2044, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2653174 = idf(docFreq=623, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
          0.44935635 = weight(abstract_txt:ranking in 2044) [ClassicSimilarity], result of:
            0.44935635 = score(doc=2044,freq=4.0), product of:
              0.6423191 = queryWeight, product of:
                8.729933 = boost
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.013146492 = queryNorm
              0.6995843 = fieldWeight in 2044, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.0625 = fieldNorm(doc=2044)
        0.28 = coord(7/25)
    
  5. Meghabghab, G.: Google's Web page ranking applied to different topological Web graph structures (2001) 0.17
    0.1657611 = sum of:
      0.1657611 = product of:
        0.8288055 = sum of:
          0.008285732 = weight(abstract_txt:from in 28) [ClassicSimilarity], result of:
            0.008285732 = score(doc=28,freq=1.0), product of:
              0.04804369 = queryWeight, product of:
                1.3243781 = boost
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.013146492 = queryNorm
              0.17246243 = fieldWeight in 28, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.759399 = idf(docFreq=7646, maxDocs=44421)
                0.0625 = fieldNorm(doc=28)
          0.051642705 = weight(abstract_txt:algorithms in 28) [ClassicSimilarity], result of:
            0.051642705 = score(doc=28,freq=2.0), product of:
              0.10250266 = queryWeight, product of:
                1.367875 = boost
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.013146492 = queryNorm
              0.5038182 = fieldWeight in 28, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.7000527 = idf(docFreq=403, maxDocs=44421)
                0.0625 = fieldNorm(doc=28)
          0.0634145 = weight(abstract_txt:algorithm in 28) [ClassicSimilarity], result of:
            0.0634145 = score(doc=28,freq=3.0), product of:
              0.10268123 = queryWeight, product of:
                1.3690659 = boost
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.013146492 = queryNorm
              0.6175861 = fieldWeight in 28, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.7050157 = idf(docFreq=401, maxDocs=44421)
                0.0625 = fieldNorm(doc=28)
          0.11102004 = weight(abstract_txt:graph in 28) [ClassicSimilarity], result of:
            0.11102004 = score(doc=28,freq=4.0), product of:
              0.1355148 = queryWeight, product of:
                1.5727953 = boost
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.013146492 = queryNorm
              0.81924665 = fieldWeight in 28, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.553973 = idf(docFreq=171, maxDocs=44421)
                0.0625 = fieldNorm(doc=28)
          0.59444255 = weight(abstract_txt:ranking in 28) [ClassicSimilarity], result of:
            0.59444255 = score(doc=28,freq=7.0), product of:
              0.6423191 = queryWeight, product of:
                8.729933 = boost
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.013146492 = queryNorm
              0.925463 = fieldWeight in 28, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.5966744 = idf(docFreq=447, maxDocs=44421)
                0.0625 = fieldNorm(doc=28)
        0.2 = coord(5/25)