Document (#41371)

Author

Wang, C.
Zhao, S.
Kalra, A.
Borcea, C.
Chen, Y.

Title

Predictive models and analysis for webpage depth-level dwell time

Source

Journal of the Association for Information Science and Technology. 69(2018) no.8, S.1007-1022

Year

2018

Abstract

A half of online display ads are not rendered viewable because the users do not scroll deep enough or spend sufficient time at the page depth where the ads are placed. In order to increase the marketing efficiency and ad effectiveness, there is a strong demand for viewability prediction from both advertisers and publishers. This paper aims to predict the dwell time for a given urn:x-wiley:23301635:media:asi24025:asi24025-math-0001 triplet based on historic data collected by publishers. This problem is difficult because of user behavior variability and data sparsity. To solve it, we propose predictive models based on Factorization Machines and Field-aware Factorization Machines in order to overcome the data sparsity issue and provide flexibility to add auxiliary information such as the visible area of a user's browser. In addition, we leverage the prior dwell time behavior of the user within the current page view, that is, time series information, to further improve the proposed models. Experimental results using data from a large web publisher demonstrate that the proposed models outperform comparison models. Also, the results show that adding time series information further improves the performance.

Content

Vgl.: https://onlinelibrary.wiley.com/doi/10.1002/asi.24025.

Theme

Internet

Similar documents (author)

1. Wang, X.; High, A.; Wang, X.; Zhao, K.: Predicting users' continued engagement in online health communities from the quantity and quality of received support (2021) 2.13

   2.1270297 = sum of:
     2.1270297 = product of:
       3.1905444 = sum of:
         1.558903 = weight(author_txt:wang in 242) [ClassicSimilarity], result of:
           1.558903 = score(doc=242,freq=2.0), product of:
             0.53762347 = queryWeight, product of:
               1.0665472 = boost
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.07682848 = queryNorm
             2.8996186 = fieldWeight in 242, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.3125 = fieldNorm(doc=242)
         1.6316414 = weight(author_txt:zhao in 242) [ClassicSimilarity], result of:
           1.6316414 = score(doc=242,freq=1.0), product of:
             0.698273 = queryWeight, product of:
               1.2154962 = boost
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.07682848 = queryNorm
             2.3366811 = fieldWeight in 242, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.3125 = fieldNorm(doc=242)
       0.6666667 = coord(2/3)
   

2. Zhao, G.; Wu, J.; Wang, D.; Li, T.: Entity disambiguation to Wikipedia using collective ranking (2016) 1.82

   1.822635 = sum of:
     1.822635 = product of:
       2.7339525 = sum of:
         1.102311 = weight(author_txt:wang in 3266) [ClassicSimilarity], result of:
           1.102311 = score(doc=3266,freq=1.0), product of:
             0.53762347 = queryWeight, product of:
               1.0665472 = boost
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.07682848 = queryNorm
             2.0503402 = fieldWeight in 3266, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.3125 = fieldNorm(doc=3266)
         1.6316414 = weight(author_txt:zhao in 3266) [ClassicSimilarity], result of:
           1.6316414 = score(doc=3266,freq=1.0), product of:
             0.698273 = queryWeight, product of:
               1.2154962 = boost
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.07682848 = queryNorm
             2.3366811 = fieldWeight in 3266, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.3125 = fieldNorm(doc=3266)
       0.6666667 = coord(2/3)
   

3. Wang, X.; Zhang, M.; Fan, W.; Zhao, K.: Understanding the spread of COVID-19 misinformation on social media : the effects of topics and a political leader's nudge (2022) 1.82

   1.822635 = sum of:
     1.822635 = product of:
       2.7339525 = sum of:
         1.102311 = weight(author_txt:wang in 549) [ClassicSimilarity], result of:
           1.102311 = score(doc=549,freq=1.0), product of:
             0.53762347 = queryWeight, product of:
               1.0665472 = boost
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.07682848 = queryNorm
             2.0503402 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.3125 = fieldNorm(doc=549)
         1.6316414 = weight(author_txt:zhao in 549) [ClassicSimilarity], result of:
           1.6316414 = score(doc=549,freq=1.0), product of:
             0.698273 = queryWeight, product of:
               1.2154962 = boost
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.07682848 = queryNorm
             2.3366811 = fieldWeight in 549, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.3125 = fieldNorm(doc=549)
       0.6666667 = coord(2/3)
   

4. Zhang, J.; Chen, Y.; Zhao, Y.; Wolfram, D.; Ma, F.: Public health and social media : a study of Zika virus-related posts on Yahoo! Answers (2020) 1.69

   1.6934822 = sum of:
     1.6934822 = product of:
       2.5402231 = sum of:
         0.9085816 = weight(author_txt:chen in 5672) [ClassicSimilarity], result of:
           0.9085816 = score(doc=5672,freq=1.0), product of:
             0.4726265 = queryWeight, product of:
               6.1517096 = idf(docFreq=255, maxDocs=44218)
               0.07682848 = queryNorm
             1.9224093 = fieldWeight in 5672, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1517096 = idf(docFreq=255, maxDocs=44218)
               0.3125 = fieldNorm(doc=5672)
         1.6316414 = weight(author_txt:zhao in 5672) [ClassicSimilarity], result of:
           1.6316414 = score(doc=5672,freq=1.0), product of:
             0.698273 = queryWeight, product of:
               1.2154962 = boost
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.07682848 = queryNorm
             2.3366811 = fieldWeight in 5672, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               7.4773793 = idf(docFreq=67, maxDocs=44218)
               0.3125 = fieldNorm(doc=5672)
       0.6666667 = coord(2/3)
   

5. Ackerman, B.; Wang, C.; Chen, Y.: ¬A session-specific opportunity cost model for rank-oriented recommendation (2018) 1.61

   1.6087141 = sum of:
     1.6087141 = product of:
       2.4130712 = sum of:
         1.0902978 = weight(author_txt:chen in 4468) [ClassicSimilarity], result of:
           1.0902978 = score(doc=4468,freq=1.0), product of:
             0.4726265 = queryWeight, product of:
               6.1517096 = idf(docFreq=255, maxDocs=44218)
               0.07682848 = queryNorm
             2.306891 = fieldWeight in 4468, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.1517096 = idf(docFreq=255, maxDocs=44218)
               0.375 = fieldNorm(doc=4468)
         1.3227732 = weight(author_txt:wang in 4468) [ClassicSimilarity], result of:
           1.3227732 = score(doc=4468,freq=1.0), product of:
             0.53762347 = queryWeight, product of:
               1.0665472 = boost
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.07682848 = queryNorm
             2.4604082 = fieldWeight in 4468, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.5610886 = idf(docFreq=169, maxDocs=44218)
               0.375 = fieldNorm(doc=4468)
       0.6666667 = coord(2/3)
   

Similar documents (content)

1. Cai, F.; Wang, S.; Rijke, M.de: Behavior-based personalization in web search (2017) 0.12

   0.11766428 = sum of:
     0.11766428 = product of:
       0.73540175 = sum of:
         0.034569837 = weight(abstract_txt:behavior in 3527) [ClassicSimilarity], result of:
           0.034569837 = score(doc=3527,freq=1.0), product of:
             0.1061808 = queryWeight, product of:
               1.3009986 = boost
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.015667435 = queryNorm
             0.3255752 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.19664867 = weight(abstract_txt:factorization in 3527) [ClassicSimilarity], result of:
           0.19664867 = score(doc=3527,freq=1.0), product of:
             0.33835697 = queryWeight, product of:
               2.3224232 = boost
               9.298992 = idf(docFreq=10, maxDocs=44218)
               0.015667435 = queryNorm
             0.581187 = fieldWeight in 3527, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.298992 = idf(docFreq=10, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.07406959 = weight(abstract_txt:time in 3527) [ClassicSimilarity], result of:
           0.07406959 = score(doc=3527,freq=2.0), product of:
             0.20200936 = queryWeight, product of:
               3.1081371 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.015667435 = queryNorm
             0.36666414 = fieldWeight in 3527, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
         0.43011367 = weight(abstract_txt:dwell in 3527) [ClassicSimilarity], result of:
           0.43011367 = score(doc=3527,freq=2.0), product of:
             0.5179928 = queryWeight, product of:
               3.5193405 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.015667435 = queryNorm
             0.8303468 = fieldWeight in 3527, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.0625 = fieldNorm(doc=3527)
       0.16 = coord(4/25)
   

2. Tay, W.; Zhang, X.; Karimi , S.: Beyond mean rating : probabilistic aggregation of star ratings based on helpfulness (2020) 0.11

   0.10700864 = sum of:
     0.10700864 = product of:
       0.44586936 = sum of:
         0.023949264 = weight(abstract_txt:proposed in 5917) [ClassicSimilarity], result of:
           0.023949264 = score(doc=5917,freq=1.0), product of:
             0.08313347 = queryWeight, product of:
               1.1511761 = boost
               4.6093135 = idf(docFreq=1196, maxDocs=44218)
               0.015667435 = queryNorm
             0.2880821 = fieldWeight in 5917, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.6093135 = idf(docFreq=1196, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
         0.024929315 = weight(abstract_txt:further in 5917) [ClassicSimilarity], result of:
           0.024929315 = score(doc=5917,freq=1.0), product of:
             0.08538626 = queryWeight, product of:
               1.1666694 = boost
               4.671349 = idf(docFreq=1124, maxDocs=44218)
               0.015667435 = queryNorm
             0.29195932 = fieldWeight in 5917, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.671349 = idf(docFreq=1124, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
         0.025688715 = weight(abstract_txt:data in 5917) [ClassicSimilarity], result of:
           0.025688715 = score(doc=5917,freq=2.0), product of:
             0.08711161 = queryWeight, product of:
               1.6665057 = boost
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.015667435 = queryNorm
             0.29489428 = fieldWeight in 5917, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
         0.19664867 = weight(abstract_txt:sparsity in 5917) [ClassicSimilarity], result of:
           0.19664867 = score(doc=5917,freq=1.0), product of:
             0.33835697 = queryWeight, product of:
               2.3224232 = boost
               9.298992 = idf(docFreq=10, maxDocs=44218)
               0.015667435 = queryNorm
             0.581187 = fieldWeight in 5917, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.298992 = idf(docFreq=10, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
         0.12227829 = weight(abstract_txt:models in 5917) [ClassicSimilarity], result of:
           0.12227829 = score(doc=5917,freq=4.0), product of:
             0.21075313 = queryWeight, product of:
               2.898083 = boost
               4.6415744 = idf(docFreq=1158, maxDocs=44218)
               0.015667435 = queryNorm
             0.5801968 = fieldWeight in 5917, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.6415744 = idf(docFreq=1158, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
         0.052375108 = weight(abstract_txt:time in 5917) [ClassicSimilarity], result of:
           0.052375108 = score(doc=5917,freq=1.0), product of:
             0.20200936 = queryWeight, product of:
               3.1081371 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.015667435 = queryNorm
             0.2592707 = fieldWeight in 5917, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=5917)
       0.24 = coord(6/25)
   

3. Wang, Y.; Shah, C.: Authentic versus synthetic : an investigation of the influences of study settings and task configurations on search behaviors (2022) 0.10

   0.09602829 = sum of:
     0.09602829 = product of:
       0.48014143 = sum of:
         0.034569837 = weight(abstract_txt:behavior in 495) [ClassicSimilarity], result of:
           0.034569837 = score(doc=495,freq=1.0), product of:
             0.1061808 = queryWeight, product of:
               1.3009986 = boost
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.015667435 = queryNorm
             0.3255752 = fieldWeight in 495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.0625 = fieldNorm(doc=495)
         0.052730847 = weight(abstract_txt:page in 495) [ClassicSimilarity], result of:
           0.052730847 = score(doc=495,freq=1.0), product of:
             0.14069898 = queryWeight, product of:
               1.4976119 = boost
               5.9964437 = idf(docFreq=298, maxDocs=44218)
               0.015667435 = queryNorm
             0.37477773 = fieldWeight in 495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.9964437 = idf(docFreq=298, maxDocs=44218)
               0.0625 = fieldNorm(doc=495)
         0.03632933 = weight(abstract_txt:data in 495) [ClassicSimilarity], result of:
           0.03632933 = score(doc=495,freq=4.0), product of:
             0.08711161 = queryWeight, product of:
               1.6665057 = boost
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.015667435 = queryNorm
             0.41704348 = fieldWeight in 495, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.0625 = fieldNorm(doc=495)
         0.052375108 = weight(abstract_txt:time in 495) [ClassicSimilarity], result of:
           0.052375108 = score(doc=495,freq=1.0), product of:
             0.20200936 = queryWeight, product of:
               3.1081371 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.015667435 = queryNorm
             0.2592707 = fieldWeight in 495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=495)
         0.3041363 = weight(abstract_txt:dwell in 495) [ClassicSimilarity], result of:
           0.3041363 = score(doc=495,freq=1.0), product of:
             0.5179928 = queryWeight, product of:
               3.5193405 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.015667435 = queryNorm
             0.5871439 = fieldWeight in 495, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.0625 = fieldNorm(doc=495)
       0.2 = coord(5/25)
   

4. Vakkari, P.; Völske, M.; Potthast, M.; Hagen, M.; Stein, B.: Modeling the usefulness of search results as measured by information use (2019) 0.09

   0.09407701 = sum of:
     0.09407701 = product of:
       0.47038507 = sum of:
         0.034569837 = weight(abstract_txt:behavior in 5106) [ClassicSimilarity], result of:
           0.034569837 = score(doc=5106,freq=1.0), product of:
             0.1061808 = queryWeight, product of:
               1.3009986 = boost
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.015667435 = queryNorm
             0.3255752 = fieldWeight in 5106, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2092032 = idf(docFreq=656, maxDocs=44218)
               0.0625 = fieldNorm(doc=5106)
         0.018164665 = weight(abstract_txt:data in 5106) [ClassicSimilarity], result of:
           0.018164665 = score(doc=5106,freq=1.0), product of:
             0.08711161 = queryWeight, product of:
               1.6665057 = boost
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.015667435 = queryNorm
             0.20852174 = fieldWeight in 5106, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.0625 = fieldNorm(doc=5106)
         0.061139144 = weight(abstract_txt:models in 5106) [ClassicSimilarity], result of:
           0.061139144 = score(doc=5106,freq=1.0), product of:
             0.21075313 = queryWeight, product of:
               2.898083 = boost
               4.6415744 = idf(docFreq=1158, maxDocs=44218)
               0.015667435 = queryNorm
             0.2900984 = fieldWeight in 5106, 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=5106)
         0.052375108 = weight(abstract_txt:time in 5106) [ClassicSimilarity], result of:
           0.052375108 = score(doc=5106,freq=1.0), product of:
             0.20200936 = queryWeight, product of:
               3.1081371 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.015667435 = queryNorm
             0.2592707 = fieldWeight in 5106, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=5106)
         0.3041363 = weight(abstract_txt:dwell in 5106) [ClassicSimilarity], result of:
           0.3041363 = score(doc=5106,freq=1.0), product of:
             0.5179928 = queryWeight, product of:
               3.5193405 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.015667435 = queryNorm
             0.5871439 = fieldWeight in 5106, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.0625 = fieldNorm(doc=5106)
       0.2 = coord(5/25)
   

5. Liu, J.; Liu, C.; Belkin, N.J.: Predicting information searchers' topic knowledge at different search stages (2016) 0.09

   0.091464385 = sum of:
     0.091464385 = product of:
       0.4573219 = sum of:
         0.021506695 = weight(abstract_txt:order in 3147) [ClassicSimilarity], result of:
           0.021506695 = score(doc=3147,freq=1.0), product of:
             0.07738027 = queryWeight, product of:
               1.1106287 = boost
               4.446962 = idf(docFreq=1407, maxDocs=44218)
               0.015667435 = queryNorm
             0.27793512 = fieldWeight in 3147, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.446962 = idf(docFreq=1407, maxDocs=44218)
               0.0625 = fieldNorm(doc=3147)
         0.018164665 = weight(abstract_txt:data in 3147) [ClassicSimilarity], result of:
           0.018164665 = score(doc=3147,freq=1.0), product of:
             0.08711161 = queryWeight, product of:
               1.6665057 = boost
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.015667435 = queryNorm
             0.20852174 = fieldWeight in 3147, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.3363478 = idf(docFreq=4274, maxDocs=44218)
               0.0625 = fieldNorm(doc=3147)
         0.061139144 = weight(abstract_txt:models in 3147) [ClassicSimilarity], result of:
           0.061139144 = score(doc=3147,freq=1.0), product of:
             0.21075313 = queryWeight, product of:
               2.898083 = boost
               4.6415744 = idf(docFreq=1158, maxDocs=44218)
               0.015667435 = queryNorm
             0.2900984 = fieldWeight in 3147, 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=3147)
         0.052375108 = weight(abstract_txt:time in 3147) [ClassicSimilarity], result of:
           0.052375108 = score(doc=3147,freq=1.0), product of:
             0.20200936 = queryWeight, product of:
               3.1081371 = boost
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.015667435 = queryNorm
             0.2592707 = fieldWeight in 3147, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.148331 = idf(docFreq=1897, maxDocs=44218)
               0.0625 = fieldNorm(doc=3147)
         0.3041363 = weight(abstract_txt:dwell in 3147) [ClassicSimilarity], result of:
           0.3041363 = score(doc=3147,freq=1.0), product of:
             0.5179928 = queryWeight, product of:
               3.5193405 = boost
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.015667435 = queryNorm
             0.5871439 = fieldWeight in 3147, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.394302 = idf(docFreq=9, maxDocs=44218)
               0.0625 = fieldNorm(doc=3147)
       0.2 = coord(5/25)