Document (#42104)

Author
Li, X.
Rijke, M.de
Title
Characterizing and predicting downloads in academic search
Source
Information processing and management. 56(2019) no.3, S.394-407
Year
2019
Abstract
Numerous studies have been conducted on the information interaction behavior of search engine users. Few studies have considered information interactions in the domain of academic search. We focus on conversion behavior in this domain. Conversions have been widely studied in the e-commerce domain, e.g., for online shopping and hotel booking, but little is known about conversions in academic search. We start with a description of a unique dataset of a particular type of conversion in academic search, viz. users' downloads of scientific papers. Then we move to an observational analysis of users' download actions. We first characterize user actions and show their statistics in sessions. Then we focus on behavioral and topical aspects of downloads, revealing behavioral correlations across download sessions. We discover unique properties that differ from other conversion settings such as online shopping. Using insights gained from these observations, we consider the task of predicting the next download. In particular, we focus on predicting the time until the next download session, and on predicting the number of downloads. We cast these as time series prediction problems and model them using LSTMs. We develop a specialized model built on user segmentations that achieves significant improvements over the state-of-the art.
Content
Vgl.: https://doi.org/10.1016/j.ipm.2018.10.019.

Similar documents (author)

  1. De Rijke, M. -> Rijke, M. de: 4.59 
    4.5910387 = sum of:
  4.5910387 = weight(author_txt:rijke in 5116) [ClassicSimilarity], result of:
    4.5910387 = fieldWeight in 5116, product of:
      1.4142135 = tf(freq=2.0), with freq of:
        2.0 = termFreq=2.0
      8.656945 = idf(docFreq=20, maxDocs=44421)
      0.375 = fieldNorm(doc=5116)
  2. DeRijke, M. -> Rijke, M. de: 3.79 
    3.7874136 = sum of:
  3.7874136 = weight(author_txt:rijke in 117) [ClassicSimilarity], result of:
    3.7874136 = fieldWeight in 117, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.656945 = idf(docFreq=20, maxDocs=44421)
      0.4375 = fieldNorm(doc=117)
  3. Meij, E.; Rijke, M. de: Thesaurus-based feedback to support mixed search and browsing environments (2007) 3.79 
    3.7874136 = sum of:
  3.7874136 = weight(author_txt:rijke in 3432) [ClassicSimilarity], result of:
    3.7874136 = fieldWeight in 3432, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.656945 = idf(docFreq=20, maxDocs=44421)
      0.4375 = fieldNorm(doc=3432)
  4. Cai, F.; Rijke, M. de: Learning from homologous queries and semantically related terms for query auto completion (2016) 3.79 
    3.7874136 = sum of:
  3.7874136 = weight(author_txt:rijke in 3971) [ClassicSimilarity], result of:
    3.7874136 = fieldWeight in 3971, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.656945 = idf(docFreq=20, maxDocs=44421)
      0.4375 = fieldNorm(doc=3971)
  5. Kamps, J.; Rijke, M. de; Sigurbjörnsson, B.: Length normalization in XML retrieval (2004) 3.25 
    3.2463546 = sum of:
  3.2463546 = weight(author_txt:rijke in 5106) [ClassicSimilarity], result of:
    3.2463546 = fieldWeight in 5106, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.656945 = idf(docFreq=20, maxDocs=44421)
      0.375 = fieldNorm(doc=5106)

Similar documents (content)

  1. Cooper, M.D.; Chen, H.-M.: Predicting the relevance of a library catalog search (2001) 0.22 
    0.21578677 = sum of:
  0.21578677 = product of:
    0.6743337 = sum of:
      0.018689418 = weight(abstract_txt:then in 519) [ClassicSimilarity], result of:
        0.018689418 = score(doc=519,freq=1.0), product of:
          0.07412322 = queryWeight, product of:
            1.1113244 = boost
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0144663835 = queryNorm
          0.25213987 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.00936758 = weight(abstract_txt:have in 519) [ClassicSimilarity], result of:
        0.00936758 = score(doc=519,freq=1.0), product of:
          0.05353927 = queryWeight, product of:
            1.156766 = boost
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0144663835 = queryNorm
          0.17496653 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.03951679 = weight(abstract_txt:next in 519) [ClassicSimilarity], result of:
        0.03951679 = score(doc=519,freq=1.0), product of:
          0.122108206 = queryWeight, product of:
            1.4263829 = boost
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0144663835 = queryNorm
          0.3236211 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.055016104 = weight(abstract_txt:actions in 519) [ClassicSimilarity], result of:
        0.055016104 = score(doc=519,freq=1.0), product of:
          0.15224755 = queryWeight, product of:
            1.5927179 = boost
            6.6077175 = idf(docFreq=162, maxDocs=44421)
            0.0144663835 = queryNorm
          0.36135954 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.6077175 = idf(docFreq=162, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.1515747 = weight(abstract_txt:sessions in 519) [ClassicSimilarity], result of:
        0.1515747 = score(doc=519,freq=7.0), product of:
          0.15641397 = queryWeight, product of:
            1.6143641 = boost
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0144663835 = queryNorm
          0.96906114 = fieldWeight in 519, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.023269886 = weight(abstract_txt:search in 519) [ClassicSimilarity], result of:
        0.023269886 = score(doc=519,freq=1.0), product of:
          0.116430454 = queryWeight, product of:
            2.202252 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0144663835 = queryNorm
          0.19986083 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.15880598 = weight(abstract_txt:predicting in 519) [ClassicSimilarity], result of:
        0.15880598 = score(doc=519,freq=1.0), product of:
          0.38887647 = queryWeight, product of:
            3.5998511 = boost
            7.467361 = idf(docFreq=68, maxDocs=44421)
            0.0144663835 = queryNorm
          0.4083713 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.467361 = idf(docFreq=68, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
      0.21809322 = weight(abstract_txt:downloads in 519) [ClassicSimilarity], result of:
        0.21809322 = score(doc=519,freq=1.0), product of:
          0.4804651 = queryWeight, product of:
            4.0013785 = boost
            8.30027 = idf(docFreq=29, maxDocs=44421)
            0.0144663835 = queryNorm
          0.45392102 = fieldWeight in 519, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.30027 = idf(docFreq=29, maxDocs=44421)
            0.0546875 = fieldNorm(doc=519)
    0.32 = coord(8/25)
  2. Iyengar, S.S.: Visual based retrieval systems and Web mining (2001) 0.22 
    0.21578677 = sum of:
  0.21578677 = product of:
    0.6743337 = sum of:
      0.018689418 = weight(abstract_txt:then in 520) [ClassicSimilarity], result of:
        0.018689418 = score(doc=520,freq=1.0), product of:
          0.07412322 = queryWeight, product of:
            1.1113244 = boost
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0144663835 = queryNorm
          0.25213987 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.00936758 = weight(abstract_txt:have in 520) [ClassicSimilarity], result of:
        0.00936758 = score(doc=520,freq=1.0), product of:
          0.05353927 = queryWeight, product of:
            1.156766 = boost
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0144663835 = queryNorm
          0.17496653 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.03951679 = weight(abstract_txt:next in 520) [ClassicSimilarity], result of:
        0.03951679 = score(doc=520,freq=1.0), product of:
          0.122108206 = queryWeight, product of:
            1.4263829 = boost
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0144663835 = queryNorm
          0.3236211 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.055016104 = weight(abstract_txt:actions in 520) [ClassicSimilarity], result of:
        0.055016104 = score(doc=520,freq=1.0), product of:
          0.15224755 = queryWeight, product of:
            1.5927179 = boost
            6.6077175 = idf(docFreq=162, maxDocs=44421)
            0.0144663835 = queryNorm
          0.36135954 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.6077175 = idf(docFreq=162, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.1515747 = weight(abstract_txt:sessions in 520) [ClassicSimilarity], result of:
        0.1515747 = score(doc=520,freq=7.0), product of:
          0.15641397 = queryWeight, product of:
            1.6143641 = boost
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0144663835 = queryNorm
          0.96906114 = fieldWeight in 520, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.023269886 = weight(abstract_txt:search in 520) [ClassicSimilarity], result of:
        0.023269886 = score(doc=520,freq=1.0), product of:
          0.116430454 = queryWeight, product of:
            2.202252 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0144663835 = queryNorm
          0.19986083 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.15880598 = weight(abstract_txt:predicting in 520) [ClassicSimilarity], result of:
        0.15880598 = score(doc=520,freq=1.0), product of:
          0.38887647 = queryWeight, product of:
            3.5998511 = boost
            7.467361 = idf(docFreq=68, maxDocs=44421)
            0.0144663835 = queryNorm
          0.4083713 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.467361 = idf(docFreq=68, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
      0.21809322 = weight(abstract_txt:downloads in 520) [ClassicSimilarity], result of:
        0.21809322 = score(doc=520,freq=1.0), product of:
          0.4804651 = queryWeight, product of:
            4.0013785 = boost
            8.30027 = idf(docFreq=29, maxDocs=44421)
            0.0144663835 = queryNorm
          0.45392102 = fieldWeight in 520, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.30027 = idf(docFreq=29, maxDocs=44421)
            0.0546875 = fieldNorm(doc=520)
    0.32 = coord(8/25)
  3. Spink, A.; Ozmutlu, H.C.; Ozmutlu, S.: Multitasking information seeking and searching processes (2002) 0.16 
    0.15882923 = sum of:
  0.15882923 = product of:
    0.44119227 = sum of:
      0.013616744 = weight(abstract_txt:time in 1600) [ClassicSimilarity], result of:
        0.013616744 = score(doc=1600,freq=1.0), product of:
          0.060016766 = queryWeight, product of:
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.0144663835 = queryNorm
          0.22688234 = fieldWeight in 1600, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.029402593 = weight(abstract_txt:studies in 1600) [ClassicSimilarity], result of:
        0.029402593 = score(doc=1600,freq=4.0), product of:
          0.06316272 = queryWeight, product of:
            1.0258743 = boost
            4.25605 = idf(docFreq=1711, maxDocs=44421)
            0.0144663835 = queryNorm
          0.46550548 = fieldWeight in 1600, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.25605 = idf(docFreq=1711, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.04648653 = weight(abstract_txt:behavior in 1600) [ClassicSimilarity], result of:
        0.04648653 = score(doc=1600,freq=3.0), product of:
          0.094348446 = queryWeight, product of:
            1.2538081 = boost
            5.2016807 = idf(docFreq=664, maxDocs=44421)
            0.0144663835 = queryNorm
          0.49271113 = fieldWeight in 1600, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.2016807 = idf(docFreq=664, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.029035425 = weight(abstract_txt:users in 1600) [ClassicSimilarity], result of:
        0.029035425 = score(doc=1600,freq=5.0), product of:
          0.066560455 = queryWeight, product of:
            1.2897855 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0144663835 = queryNorm
          0.43622637 = fieldWeight in 1600, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.08102009 = weight(abstract_txt:sessions in 1600) [ClassicSimilarity], result of:
        0.08102009 = score(doc=1600,freq=2.0), product of:
          0.15641397 = queryWeight, product of:
            1.6143641 = boost
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0144663835 = queryNorm
          0.517985 = fieldWeight in 1600, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.032745544 = weight(abstract_txt:focus in 1600) [ClassicSimilarity], result of:
        0.032745544 = score(doc=1600,freq=1.0), product of:
          0.12331681 = queryWeight, product of:
            1.7555795 = boost
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0144663835 = queryNorm
          0.26553997 = fieldWeight in 1600, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.10418755 = weight(abstract_txt:shopping in 1600) [ClassicSimilarity], result of:
        0.10418755 = score(doc=1600,freq=1.0), product of:
          0.23304205 = queryWeight, product of:
            1.97052 = boost
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.0144663835 = queryNorm
          0.44707617 = fieldWeight in 1600, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.065817185 = weight(abstract_txt:search in 1600) [ClassicSimilarity], result of:
        0.065817185 = score(doc=1600,freq=8.0), product of:
          0.116430454 = queryWeight, product of:
            2.202252 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0144663835 = queryNorm
          0.5652918 = fieldWeight in 1600, product of:
            2.828427 = tf(freq=8.0), with freq of:
              8.0 = termFreq=8.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
      0.0388806 = weight(abstract_txt:academic in 1600) [ClassicSimilarity], result of:
        0.0388806 = score(doc=1600,freq=1.0), product of:
          0.15219103 = queryWeight, product of:
            2.2520251 = boost
            4.6714945 = idf(docFreq=1129, maxDocs=44421)
            0.0144663835 = queryNorm
          0.25547236 = fieldWeight in 1600, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6714945 = idf(docFreq=1129, maxDocs=44421)
            0.0546875 = fieldNorm(doc=1600)
    0.36 = coord(9/25)
  4. Li, X.; Schijvenaars, B.J.A.; Rijke, M.de: Investigating queries and search failures in academic search (2017) 0.14 
    0.14340949 = sum of:
  0.14340949 = product of:
    0.4481547 = sum of:
      0.016255038 = weight(abstract_txt:particular in 33) [ClassicSimilarity], result of:
        0.016255038 = score(doc=33,freq=1.0), product of:
          0.067538135 = queryWeight, product of:
            1.0608115 = boost
            4.400995 = idf(docFreq=1480, maxDocs=44421)
            0.0144663835 = queryNorm
          0.2406794 = fieldWeight in 33, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.400995 = idf(docFreq=1480, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.018689418 = weight(abstract_txt:then in 33) [ClassicSimilarity], result of:
        0.018689418 = score(doc=33,freq=1.0), product of:
          0.07412322 = queryWeight, product of:
            1.1113244 = boost
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0144663835 = queryNorm
          0.25213987 = fieldWeight in 33, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.6105576 = idf(docFreq=1200, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.018363615 = weight(abstract_txt:users in 33) [ClassicSimilarity], result of:
        0.018363615 = score(doc=33,freq=2.0), product of:
          0.066560455 = queryWeight, product of:
            1.2897855 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0144663835 = queryNorm
          0.27589378 = fieldWeight in 33, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.11457971 = weight(abstract_txt:sessions in 33) [ClassicSimilarity], result of:
        0.11457971 = score(doc=33,freq=4.0), product of:
          0.15641397 = queryWeight, product of:
            1.6143641 = boost
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0144663835 = queryNorm
          0.7325414 = fieldWeight in 33, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.030247986 = weight(abstract_txt:domain in 33) [ClassicSimilarity], result of:
        0.030247986 = score(doc=33,freq=1.0), product of:
          0.1169639 = queryWeight, product of:
            1.7097604 = boost
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.0144663835 = queryNorm
          0.2586096 = fieldWeight in 33, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.7288613 = idf(docFreq=1066, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.04630919 = weight(abstract_txt:focus in 33) [ClassicSimilarity], result of:
        0.04630919 = score(doc=33,freq=2.0), product of:
          0.12331681 = queryWeight, product of:
            1.7555795 = boost
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0144663835 = queryNorm
          0.37553024 = fieldWeight in 33, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.08706795 = weight(abstract_txt:search in 33) [ClassicSimilarity], result of:
        0.08706795 = score(doc=33,freq=14.0), product of:
          0.116430454 = queryWeight, product of:
            2.202252 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0144663835 = queryNorm
          0.7478108 = fieldWeight in 33, product of:
            3.7416575 = tf(freq=14.0), with freq of:
              14.0 = termFreq=14.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
      0.116641805 = weight(abstract_txt:academic in 33) [ClassicSimilarity], result of:
        0.116641805 = score(doc=33,freq=9.0), product of:
          0.15219103 = queryWeight, product of:
            2.2520251 = boost
            4.6714945 = idf(docFreq=1129, maxDocs=44421)
            0.0144663835 = queryNorm
          0.7664171 = fieldWeight in 33, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            4.6714945 = idf(docFreq=1129, maxDocs=44421)
            0.0546875 = fieldNorm(doc=33)
    0.32 = coord(8/25)
  5. Aloteibi, S.; Sanderson, M.: Analyzing geographic query reformulation : an exploratory study (2014) 0.12 
    0.11662303 = sum of:
  0.11662303 = product of:
    0.36444697 = sum of:
      0.023760883 = weight(abstract_txt:studies in 2177) [ClassicSimilarity], result of:
        0.023760883 = score(doc=2177,freq=2.0), product of:
          0.06316272 = queryWeight, product of:
            1.0258743 = boost
            4.25605 = idf(docFreq=1711, maxDocs=44421)
            0.0144663835 = queryNorm
          0.37618524 = fieldWeight in 2177, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.25605 = idf(docFreq=1711, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.018577186 = weight(abstract_txt:particular in 2177) [ClassicSimilarity], result of:
        0.018577186 = score(doc=2177,freq=1.0), product of:
          0.067538135 = queryWeight, product of:
            1.0608115 = boost
            4.400995 = idf(docFreq=1480, maxDocs=44421)
            0.0144663835 = queryNorm
          0.27506217 = fieldWeight in 2177, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.400995 = idf(docFreq=1480, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.010705806 = weight(abstract_txt:have in 2177) [ClassicSimilarity], result of:
        0.010705806 = score(doc=2177,freq=1.0), product of:
          0.05353927 = queryWeight, product of:
            1.156766 = boost
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0144663835 = queryNorm
          0.19996175 = fieldWeight in 2177, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.199388 = idf(docFreq=4924, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.03635053 = weight(abstract_txt:users in 2177) [ClassicSimilarity], result of:
        0.03635053 = score(doc=2177,freq=6.0), product of:
          0.066560455 = queryWeight, product of:
            1.2897855 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0144663835 = queryNorm
          0.54612803 = fieldWeight in 2177, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.045162044 = weight(abstract_txt:next in 2177) [ClassicSimilarity], result of:
        0.045162044 = score(doc=2177,freq=1.0), product of:
          0.122108206 = queryWeight, product of:
            1.4263829 = boost
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0144663835 = queryNorm
          0.36985266 = fieldWeight in 2177, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.9176426 = idf(docFreq=324, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.14640458 = weight(abstract_txt:sessions in 2177) [ClassicSimilarity], result of:
        0.14640458 = score(doc=2177,freq=5.0), product of:
          0.15641397 = queryWeight, product of:
            1.6143641 = boost
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0144663835 = queryNorm
          0.9360071 = fieldWeight in 2177, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            6.697521 = idf(docFreq=148, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.037423477 = weight(abstract_txt:focus in 2177) [ClassicSimilarity], result of:
        0.037423477 = score(doc=2177,freq=1.0), product of:
          0.12331681 = queryWeight, product of:
            1.7555795 = boost
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0144663835 = queryNorm
          0.30347425 = fieldWeight in 2177, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.855588 = idf(docFreq=939, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
      0.04606243 = weight(abstract_txt:search in 2177) [ClassicSimilarity], result of:
        0.04606243 = score(doc=2177,freq=3.0), product of:
          0.116430454 = queryWeight, product of:
            2.202252 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0144663835 = queryNorm
          0.39562184 = fieldWeight in 2177, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0625 = fieldNorm(doc=2177)
    0.32 = coord(8/25)