Document (#34740)

Author
Yang, C.C.
Liu, N.
Title
Web site topic-hierarchy generation based on link structure
Source
Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.495-508
Year
2009
Abstract
Navigating through hyperlinks within a Web site to look for information from one of its Web pages without the support of a site map can be inefficient and ineffective. Although the content of a Web site is usually organized with an inherent structure like a topic hierarchy, which is a directed tree rooted at a Web site's homepage whose vertices and edges correspond to Web pages and hyperlinks, such a topic hierarchy is not always available to the user. In this work, we studied the problem of automatic generation of Web sites' topic hierarchies. We modeled a Web site's link structure as a weighted directed graph and proposed methods for estimating edge weights based on eight types of features and three learning algorithms, namely decision trees, naïve Bayes classifiers, and logistic regression. Three graph algorithms, namely breadth-first search, shortest-path search, and directed minimum-spanning tree, were adapted to generate the topic hierarchy based on the graph model. We have tested the model and algorithms on real Web sites. It is found that the directed minimum-spanning tree algorithm with the decision tree as the weight learning algorithm achieves the highest performance with an average accuracy of 91.9%.
Theme
Internet
Hypertext
Object
WWW

Similar documents (author)

  1. Yang, S.C.: ¬An interpretive and situated approach to an evaluation of Perseus digital libraries (2001) 4.55
    4.54692 = sum of:
      4.54692 = weight(author_txt:yang in 934) [ClassicSimilarity], result of:
        4.54692 = fieldWeight in 934, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.275072 = idf(docFreq=78, maxDocs=41962)
          0.625 = fieldNorm(doc=934)
    
  2. Yang, K.: Information retrieval on the Web (2004) 4.55
    4.54692 = sum of:
      4.54692 = weight(author_txt:yang in 279) [ClassicSimilarity], result of:
        4.54692 = fieldWeight in 279, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.275072 = idf(docFreq=78, maxDocs=41962)
          0.625 = fieldNorm(doc=279)
    
  3. Yang, C.C.: Content-based image retrievaI : a comparison between query by example and image browsing map approaches (2005) 4.55
    4.54692 = sum of:
      4.54692 = weight(author_txt:yang in 650) [ClassicSimilarity], result of:
        4.54692 = fieldWeight in 650, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.275072 = idf(docFreq=78, maxDocs=41962)
          0.625 = fieldNorm(doc=650)
    
  4. Salton, G.; Yang, C.S.: On the specification of term values in automatic indexing (1973) 3.64
    3.637536 = sum of:
      3.637536 = weight(author_txt:yang in 5476) [ClassicSimilarity], result of:
        3.637536 = fieldWeight in 5476, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.275072 = idf(docFreq=78, maxDocs=41962)
          0.5 = fieldNorm(doc=5476)
    
  5. Yang, Y.; Chute, C.G.A.: ¬A schematic analysis of the Unified Medical Language System (1992) 3.64
    3.637536 = sum of:
      3.637536 = weight(author_txt:yang in 6445) [ClassicSimilarity], result of:
        3.637536 = fieldWeight in 6445, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          7.275072 = idf(docFreq=78, maxDocs=41962)
          0.5 = fieldNorm(doc=6445)
    

Similar documents (content)

  1. Allen, R.B.: Navigating and searching in digital library catalogs (1994) 0.22
    0.21890062 = sum of:
      0.21890062 = product of:
        0.78178793 = sum of:
          0.08180717 = weight(abstract_txt:edges in 4415) [ClassicSimilarity], result of:
            0.08180717 = score(doc=4415,freq=1.0), product of:
              0.14534675 = queryWeight, product of:
                9.005463 = idf(docFreq=13, maxDocs=41962)
                0.016139843 = queryNorm
              0.5628414 = fieldWeight in 4415, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.005463 = idf(docFreq=13, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.011243231 = weight(abstract_txt:based in 4415) [ClassicSimilarity], result of:
            0.011243231 = score(doc=4415,freq=1.0), product of:
              0.055827163 = queryWeight, product of:
                1.0734473 = boost
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.016139843 = queryNorm
              0.20139354 = fieldWeight in 4415, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.10713887 = weight(abstract_txt:vertices in 4415) [ClassicSimilarity], result of:
            0.10713887 = score(doc=4415,freq=1.0), product of:
              0.17398393 = queryWeight, product of:
                1.0940871 = boost
                9.85276 = idf(docFreq=5, maxDocs=41962)
                0.016139843 = queryNorm
              0.6157975 = fieldWeight in 4415, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.85276 = idf(docFreq=5, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.039642345 = weight(abstract_txt:structure in 4415) [ClassicSimilarity], result of:
            0.039642345 = score(doc=4415,freq=2.0), product of:
              0.10264734 = queryWeight, product of:
                1.4555657 = boost
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.016139843 = queryNorm
              0.3861994 = fieldWeight in 4415, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.14176387 = weight(abstract_txt:graph in 4415) [ClassicSimilarity], result of:
            0.14176387 = score(doc=4415,freq=2.0), product of:
              0.24004088 = queryWeight, product of:
                2.225874 = boost
                6.681675 = idf(docFreq=142, maxDocs=41962)
                0.016139843 = queryNorm
              0.5905822 = fieldWeight in 4415, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.681675 = idf(docFreq=142, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.25625846 = weight(abstract_txt:hierarchy in 4415) [ClassicSimilarity], result of:
            0.25625846 = score(doc=4415,freq=4.0), product of:
              0.31116915 = queryWeight, product of:
                2.9263456 = boost
                6.588274 = idf(docFreq=156, maxDocs=41962)
                0.016139843 = queryNorm
              0.82353425 = fieldWeight in 4415, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.588274 = idf(docFreq=156, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
          0.14393395 = weight(abstract_txt:tree in 4415) [ClassicSimilarity], result of:
            0.14393395 = score(doc=4415,freq=1.0), product of:
              0.33625847 = queryWeight, product of:
                3.0420332 = boost
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.016139843 = queryNorm
              0.42804557 = fieldWeight in 4415, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.0625 = fieldNorm(doc=4415)
        0.28 = coord(7/25)
    
  2. Yan, E.; Yu, Q.: Using path-based approaches to examine the dynamic structure of discipline-level citation networks (2016) 0.19
    0.18659192 = sum of:
      0.18659192 = product of:
        0.77746636 = sum of:
          0.014054039 = weight(abstract_txt:based in 54) [ClassicSimilarity], result of:
            0.014054039 = score(doc=54,freq=1.0), product of:
              0.055827163 = queryWeight, product of:
                1.0734473 = boost
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.016139843 = queryNorm
              0.25174195 = fieldWeight in 54, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
          0.050657026 = weight(abstract_txt:decision in 54) [ClassicSimilarity], result of:
            0.050657026 = score(doc=54,freq=1.0), product of:
              0.11465003 = queryWeight, product of:
                1.2560283 = boost
                5.655558 = idf(docFreq=398, maxDocs=41962)
                0.016139843 = queryNorm
              0.44184047 = fieldWeight in 54, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.655558 = idf(docFreq=398, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
          0.03503921 = weight(abstract_txt:structure in 54) [ClassicSimilarity], result of:
            0.03503921 = score(doc=54,freq=1.0), product of:
              0.10264734 = queryWeight, product of:
                1.4555657 = boost
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.016139843 = queryNorm
              0.34135526 = fieldWeight in 54, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
          0.2053332 = weight(abstract_txt:spanning in 54) [ClassicSimilarity], result of:
            0.2053332 = score(doc=54,freq=2.0), product of:
              0.23133634 = queryWeight, product of:
                1.7841619 = boost
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.016139843 = queryNorm
              0.88759595 = fieldWeight in 54, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
          0.25444168 = weight(abstract_txt:tree in 54) [ClassicSimilarity], result of:
            0.25444168 = score(doc=54,freq=2.0), product of:
              0.33625847 = queryWeight, product of:
                3.0420332 = boost
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.016139843 = queryNorm
              0.7566848 = fieldWeight in 54, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
          0.21794122 = weight(abstract_txt:directed in 54) [ClassicSimilarity], result of:
            0.21794122 = score(doc=54,freq=1.0), product of:
              0.38210613 = queryWeight, product of:
                3.2427938 = boost
                7.3007145 = idf(docFreq=76, maxDocs=41962)
                0.016139843 = queryNorm
              0.5703683 = fieldWeight in 54, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.3007145 = idf(docFreq=76, maxDocs=41962)
                0.078125 = fieldNorm(doc=54)
        0.24 = coord(6/25)
    
  3. Wu, I.-C.; Vakkari, P.: Supporting navigation in Wikipedia by information visualization : extended evaluation measures (2014) 0.16
    0.15519384 = sum of:
      0.15519384 = product of:
        0.646641 = sum of:
          0.016864846 = weight(abstract_txt:based in 3798) [ClassicSimilarity], result of:
            0.016864846 = score(doc=3798,freq=4.0), product of:
              0.055827163 = queryWeight, product of:
                1.0734473 = boost
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.016139843 = queryNorm
              0.30209032 = fieldWeight in 3798, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
          0.046083264 = weight(abstract_txt:sites in 3798) [ClassicSimilarity], result of:
            0.046083264 = score(doc=3798,freq=3.0), product of:
              0.10491445 = queryWeight, product of:
                1.2015172 = boost
                5.410109 = idf(docFreq=509, maxDocs=41962)
                0.016139843 = queryNorm
              0.43924612 = fieldWeight in 3798, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.410109 = idf(docFreq=509, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
          0.044476207 = weight(abstract_txt:link in 3798) [ClassicSimilarity], result of:
            0.044476207 = score(doc=3798,freq=2.0), product of:
              0.11728849 = queryWeight, product of:
                1.2703987 = boost
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.016139843 = queryNorm
              0.3792035 = fieldWeight in 3798, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
          0.18741417 = weight(abstract_txt:topic in 3798) [ClassicSimilarity], result of:
            0.18741417 = score(doc=3798,freq=11.0), product of:
              0.23526877 = queryWeight, product of:
                2.8448834 = boost
                5.1238985 = idf(docFreq=678, maxDocs=41962)
                0.016139843 = queryNorm
              0.79659605 = fieldWeight in 3798, product of:
                3.3166249 = tf(freq=11.0), with freq of:
                  11.0 = termFreq=11.0
                5.1238985 = idf(docFreq=678, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
          0.13590157 = weight(abstract_txt:hierarchy in 3798) [ClassicSimilarity], result of:
            0.13590157 = score(doc=3798,freq=2.0), product of:
              0.31116915 = queryWeight, product of:
                2.9263456 = boost
                6.588274 = idf(docFreq=156, maxDocs=41962)
                0.016139843 = queryNorm
              0.436745 = fieldWeight in 3798, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.588274 = idf(docFreq=156, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
          0.21590093 = weight(abstract_txt:tree in 3798) [ClassicSimilarity], result of:
            0.21590093 = score(doc=3798,freq=4.0), product of:
              0.33625847 = queryWeight, product of:
                3.0420332 = boost
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.016139843 = queryNorm
              0.6420684 = fieldWeight in 3798, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.046875 = fieldNorm(doc=3798)
        0.24 = coord(6/25)
    
  4. Munzner, T.: Interactive visualization of large graphs and networks (2000) 0.15
    0.1515113 = sum of:
      0.1515113 = product of:
        0.47347283 = sum of:
          0.011925246 = weight(abstract_txt:based in 747) [ClassicSimilarity], result of:
            0.011925246 = score(doc=747,freq=2.0), product of:
              0.055827163 = queryWeight, product of:
                1.0734473 = boost
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.016139843 = queryNorm
              0.2136101 = fieldWeight in 747, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.026606185 = weight(abstract_txt:sites in 747) [ClassicSimilarity], result of:
            0.026606185 = score(doc=747,freq=1.0), product of:
              0.10491445 = queryWeight, product of:
                1.2015172 = boost
                5.410109 = idf(docFreq=509, maxDocs=41962)
                0.016139843 = queryNorm
              0.25359887 = fieldWeight in 747, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.410109 = idf(docFreq=509, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.031449426 = weight(abstract_txt:link in 747) [ClassicSimilarity], result of:
            0.031449426 = score(doc=747,freq=1.0), product of:
              0.11728849 = queryWeight, product of:
                1.2703987 = boost
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.016139843 = queryNorm
              0.26813737 = fieldWeight in 747, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.029731756 = weight(abstract_txt:structure in 747) [ClassicSimilarity], result of:
            0.029731756 = score(doc=747,freq=2.0), product of:
              0.10264734 = queryWeight, product of:
                1.4555657 = boost
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.016139843 = queryNorm
              0.28964955 = fieldWeight in 747, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.087115504 = weight(abstract_txt:spanning in 747) [ClassicSimilarity], result of:
            0.087115504 = score(doc=747,freq=1.0), product of:
              0.23133634 = queryWeight, product of:
                1.7841619 = boost
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.016139843 = queryNorm
              0.37657508 = fieldWeight in 747, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.04847585 = weight(abstract_txt:algorithms in 747) [ClassicSimilarity], result of:
            0.04847585 = score(doc=747,freq=1.0), product of:
              0.17915446 = queryWeight, product of:
                1.9229667 = boost
                5.772402 = idf(docFreq=354, maxDocs=41962)
                0.016139843 = queryNorm
              0.27058133 = fieldWeight in 747, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.772402 = idf(docFreq=354, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.13021843 = weight(abstract_txt:graph in 747) [ClassicSimilarity], result of:
            0.13021843 = score(doc=747,freq=3.0), product of:
              0.24004088 = queryWeight, product of:
                2.225874 = boost
                6.681675 = idf(docFreq=142, maxDocs=41962)
                0.016139843 = queryNorm
              0.5424844 = fieldWeight in 747, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                6.681675 = idf(docFreq=142, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
          0.107950464 = weight(abstract_txt:tree in 747) [ClassicSimilarity], result of:
            0.107950464 = score(doc=747,freq=1.0), product of:
              0.33625847 = queryWeight, product of:
                3.0420332 = boost
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.016139843 = queryNorm
              0.3210342 = fieldWeight in 747, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.046875 = fieldNorm(doc=747)
        0.32 = coord(8/25)
    
  5. Rasmussen, E.: Clustering algorithms (1992) 0.15
    0.15092361 = sum of:
      0.15092361 = product of:
        0.5390129 = sum of:
          0.015900327 = weight(abstract_txt:based in 4927) [ClassicSimilarity], result of:
            0.015900327 = score(doc=4927,freq=2.0), product of:
              0.055827163 = queryWeight, product of:
                1.0734473 = boost
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.016139843 = queryNorm
              0.28481346 = fieldWeight in 4927, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2222967 = idf(docFreq=4546, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.08386514 = weight(abstract_txt:link in 4927) [ClassicSimilarity], result of:
            0.08386514 = score(doc=4927,freq=4.0), product of:
              0.11728849 = queryWeight, product of:
                1.2703987 = boost
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.016139843 = queryNorm
              0.715033 = fieldWeight in 4927, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.720264 = idf(docFreq=373, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.059721187 = weight(abstract_txt:algorithm in 4927) [ClassicSimilarity], result of:
            0.059721187 = score(doc=4927,freq=2.0), product of:
              0.11784107 = queryWeight, product of:
                1.2733878 = boost
                5.733723 = idf(docFreq=368, maxDocs=41962)
                0.016139843 = queryNorm
              0.50679433 = fieldWeight in 4927, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.733723 = idf(docFreq=368, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.02803137 = weight(abstract_txt:structure in 4927) [ClassicSimilarity], result of:
            0.02803137 = score(doc=4927,freq=1.0), product of:
              0.10264734 = queryWeight, product of:
                1.4555657 = boost
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.016139843 = queryNorm
              0.27308422 = fieldWeight in 4927, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.3693476 = idf(docFreq=1443, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.116154 = weight(abstract_txt:spanning in 4927) [ClassicSimilarity], result of:
            0.116154 = score(doc=4927,freq=1.0), product of:
              0.23133634 = queryWeight, product of:
                1.7841619 = boost
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.016139843 = queryNorm
              0.5021001 = fieldWeight in 4927, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.033602 = idf(docFreq=36, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.09140695 = weight(abstract_txt:algorithms in 4927) [ClassicSimilarity], result of:
            0.09140695 = score(doc=4927,freq=2.0), product of:
              0.17915446 = queryWeight, product of:
                1.9229667 = boost
                5.772402 = idf(docFreq=354, maxDocs=41962)
                0.016139843 = queryNorm
              0.5102131 = fieldWeight in 4927, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.772402 = idf(docFreq=354, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
          0.14393395 = weight(abstract_txt:tree in 4927) [ClassicSimilarity], result of:
            0.14393395 = score(doc=4927,freq=1.0), product of:
              0.33625847 = queryWeight, product of:
                3.0420332 = boost
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.016139843 = queryNorm
              0.42804557 = fieldWeight in 4927, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.848729 = idf(docFreq=120, maxDocs=41962)
                0.0625 = fieldNorm(doc=4927)
        0.28 = coord(7/25)