Document (#28310)

Author
Shapira, B.
Elovici, Y.
Meshiach, A.
Kuflik, T.
Title
PRAW-A PRivAcy model for the Web
Source
Journal of the American Society for Information Science and Technology. 56(2005) no.2, S.159-172
Year
2005
Abstract
Web navigation enables easy access to vast amounts of information and services. However, it also poses a major risk to users' privacy. Various eavesdroppers constantly attempt to violate users' privacy by tracking their navigation activities and inferring their interests and needs (profiles). Users who wish to keep their intentions secret forego useful services to avoid exposure. The computer security community has concentrated an improving users' privacy by concealing their identity an the Web. However, users may want or need to identify themselves over the Net to receive certain services but still retain their interests, needs, and intentions in private. PRAWa PRivAcy model for the Web suggested in this paperis aimed at hiding users' navigation tracks to prevent eavesdroppers from inferring their profiles but still allowing them to be identified. PRAW is based an continuous generation of fake transactions in various fields of interests to confuse eavesdroppers' automated programs, thus providing them false data. A privacy measure is defined that reflects the difference between users' actual profile and the profile that eavesdroppers might infer. A prototype system was developed to examine PRAW's feasibility and conduct experiments to test its effectiveness. Encouraging results and their analysis are presented, as weIl as possible attacks and known limitations.
Theme
Internet
Object
WWW

Similar documents (author)

  1. Kuflik, T.; Shapira, B.; Shoval, P.: Stereotype-based versus personal-based filtering rules in information filtering systems (2003) 5.01 
    5.012557 = sum of:
  5.012557 = sum of:
    2.144086 = weight(author_txt:shapira in 2234) [ClassicSimilarity], result of:
      2.144086 = score(doc=2234,freq=1.0), product of:
        0.6357497 = queryWeight, product of:
          8.993418 = idf(docFreq=14, maxDocs=44421)
          0.07069056 = queryNorm
        3.3725317 = fieldWeight in 2234, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.993418 = idf(docFreq=14, maxDocs=44421)
          0.375 = fieldNorm(doc=2234)
    2.8684711 = weight(author_txt:kuflik in 2234) [ClassicSimilarity], result of:
      2.8684711 = score(doc=2234,freq=1.0), product of:
        0.77189523 = queryWeight, product of:
          1.1018846 = boost
          9.909708 = idf(docFreq=5, maxDocs=44421)
          0.07069056 = queryNorm
        3.7161405 = fieldWeight in 2234, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.909708 = idf(docFreq=5, maxDocs=44421)
          0.375 = fieldNorm(doc=2234)
  2. Shapira, B.: Hypertext browsing : a new model for information filtering based on user profiles and data clustering (1996) 1.79 
    1.7867383 = sum of:
  1.7867383 = product of:
    3.5734766 = sum of:
      3.5734766 = weight(author_txt:shapira in 4779) [ClassicSimilarity], result of:
        3.5734766 = score(doc=4779,freq=1.0), product of:
          0.6357497 = queryWeight, product of:
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.07069056 = queryNorm
          5.620886 = fieldWeight in 4779, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.625 = fieldNorm(doc=4779)
    0.5 = coord(1/2)
  3. Goren-Bar, D.; Kuflik, T.: Supporting user-subjective categorization with self-organizing maps and learning vector quantization (2005) 1.67 
    1.6732749 = sum of:
  1.6732749 = product of:
    3.3465497 = sum of:
      3.3465497 = weight(author_txt:kuflik in 4325) [ClassicSimilarity], result of:
        3.3465497 = score(doc=4325,freq=1.0), product of:
          0.77189523 = queryWeight, product of:
            1.1018846 = boost
            9.909708 = idf(docFreq=5, maxDocs=44421)
            0.07069056 = queryNorm
          4.3354974 = fieldWeight in 4325, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.909708 = idf(docFreq=5, maxDocs=44421)
            0.4375 = fieldNorm(doc=4325)
    0.5 = coord(1/2)
  4. Minkov, E.; Kahanov, K.; Kuflik, T.: Graph-based recommendation integrating rating history and domain knowledge : application to on-site guidance of museum visitors (2017) 1.43 
    1.4342356 = sum of:
  1.4342356 = product of:
    2.8684711 = sum of:
      2.8684711 = weight(author_txt:kuflik in 4756) [ClassicSimilarity], result of:
        2.8684711 = score(doc=4756,freq=1.0), product of:
          0.77189523 = queryWeight, product of:
            1.1018846 = boost
            9.909708 = idf(docFreq=5, maxDocs=44421)
            0.07069056 = queryNorm
          3.7161405 = fieldWeight in 4756, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            9.909708 = idf(docFreq=5, maxDocs=44421)
            0.375 = fieldNorm(doc=4756)
    0.5 = coord(1/2)
  5. Shapira, B.; Zabar, B.: Personalized search : integrating collaboration and social networks (2011) 1.43 
    1.4293907 = sum of:
  1.4293907 = product of:
    2.8587813 = sum of:
      2.8587813 = weight(author_txt:shapira in 140) [ClassicSimilarity], result of:
        2.8587813 = score(doc=140,freq=1.0), product of:
          0.6357497 = queryWeight, product of:
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.07069056 = queryNorm
          4.496709 = fieldWeight in 140, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.993418 = idf(docFreq=14, maxDocs=44421)
            0.5 = fieldNorm(doc=140)
    0.5 = coord(1/2)

Similar documents (content)

  1. Viejo, A.; Sánchez, D.: Profiling social networks to provide useful and privacy-preserving web search (2014) 0.30 
    0.30488223 = sum of:
  0.30488223 = product of:
    0.95275694 = sum of:
      0.09220071 = weight(abstract_txt:fake in 2544) [ClassicSimilarity], result of:
        0.09220071 = score(doc=2544,freq=2.0), product of:
          0.13098423 = queryWeight, product of:
            7.963798 = idf(docFreq=41, maxDocs=44421)
            0.016447458 = queryNorm
          0.70390695 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            7.963798 = idf(docFreq=41, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.027120678 = weight(abstract_txt:however in 2544) [ClassicSimilarity], result of:
        0.027120678 = score(doc=2544,freq=2.0), product of:
          0.072991654 = queryWeight, product of:
            1.0557038 = boost
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.016447458 = queryNorm
          0.3715586 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.04962757 = weight(abstract_txt:services in 2544) [ClassicSimilarity], result of:
        0.04962757 = score(doc=2544,freq=3.0), product of:
          0.10919972 = queryWeight, product of:
            1.5814734 = boost
            4.198178 = idf(docFreq=1813, maxDocs=44421)
            0.016447458 = queryNorm
          0.45446607 = fieldWeight in 2544, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.198178 = idf(docFreq=1813, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.10117733 = weight(abstract_txt:profile in 2544) [ClassicSimilarity], result of:
        0.10117733 = score(doc=2544,freq=2.0), product of:
          0.17557459 = queryWeight, product of:
            1.6373303 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.016447458 = queryNorm
          0.5762641 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.14319661 = weight(abstract_txt:profiles in 2544) [ClassicSimilarity], result of:
        0.14319661 = score(doc=2544,freq=3.0), product of:
          0.1933441 = queryWeight, product of:
            1.718189 = boost
            6.8416553 = idf(docFreq=128, maxDocs=44421)
            0.016447458 = queryNorm
          0.74063087 = fieldWeight in 2544, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            6.8416553 = idf(docFreq=128, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.1431033 = weight(abstract_txt:interests in 2544) [ClassicSimilarity], result of:
        0.1431033 = score(doc=2544,freq=2.0), product of:
          0.25324237 = queryWeight, product of:
            2.4083483 = boost
            6.3932 = idf(docFreq=201, maxDocs=44421)
            0.016447458 = queryNorm
          0.56508434 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.3932 = idf(docFreq=201, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.05800803 = weight(abstract_txt:users in 2544) [ClassicSimilarity], result of:
        0.05800803 = score(doc=2544,freq=2.0), product of:
          0.18397307 = queryWeight, product of:
            3.135571 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.016447458 = queryNorm
          0.31530717 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
      0.33832276 = weight(abstract_txt:privacy in 2544) [ClassicSimilarity], result of:
        0.33832276 = score(doc=2544,freq=2.0), product of:
          0.56624025 = queryWeight, product of:
            5.0929155 = boost
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.016447458 = queryNorm
          0.5974898 = fieldWeight in 2544, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.0625 = fieldNorm(doc=2544)
    0.32 = coord(8/25)
  2. Wu, Z.; Li, R.; Zhou, Z.; Guo, J.; Jiang, J.; Su, X.: ¬A user sensitive subject protection approach for book search service (2020) 0.25 
    0.24885899 = sum of:
  0.24885899 = product of:
    0.8887821 = sum of:
      0.1303915 = weight(abstract_txt:fake in 617) [ClassicSimilarity], result of:
        0.1303915 = score(doc=617,freq=4.0), product of:
          0.13098423 = queryWeight, product of:
            7.963798 = idf(docFreq=41, maxDocs=44421)
            0.016447458 = queryNorm
          0.99547476 = fieldWeight in 617, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            7.963798 = idf(docFreq=41, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.023065517 = weight(abstract_txt:model in 617) [ClassicSimilarity], result of:
        0.023065517 = score(doc=617,freq=2.0), product of:
          0.065521166 = queryWeight, product of:
            1.0002217 = boost
            3.9827821 = idf(docFreq=2249, maxDocs=44421)
            0.016447458 = queryNorm
          0.35203153 = fieldWeight in 617, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.9827821 = idf(docFreq=2249, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.07052432 = weight(abstract_txt:exposure in 617) [ClassicSimilarity], result of:
        0.07052432 = score(doc=617,freq=1.0), product of:
          0.13802744 = queryWeight, product of:
            1.0265337 = boost
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.016447458 = queryNorm
          0.5109442 = fieldWeight in 617, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            8.175107 = idf(docFreq=33, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.019177215 = weight(abstract_txt:however in 617) [ClassicSimilarity], result of:
        0.019177215 = score(doc=617,freq=1.0), product of:
          0.072991654 = queryWeight, product of:
            1.0557038 = boost
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.016447458 = queryNorm
          0.2627316 = fieldWeight in 617, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.02865249 = weight(abstract_txt:services in 617) [ClassicSimilarity], result of:
        0.02865249 = score(doc=617,freq=1.0), product of:
          0.10919972 = queryWeight, product of:
            1.5814734 = boost
            4.198178 = idf(docFreq=1813, maxDocs=44421)
            0.016447458 = queryNorm
          0.2623861 = fieldWeight in 617, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.198178 = idf(docFreq=1813, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.08203574 = weight(abstract_txt:users in 617) [ClassicSimilarity], result of:
        0.08203574 = score(doc=617,freq=4.0), product of:
          0.18397307 = queryWeight, product of:
            3.135571 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.016447458 = queryNorm
          0.44591168 = fieldWeight in 617, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
      0.5349353 = weight(abstract_txt:privacy in 617) [ClassicSimilarity], result of:
        0.5349353 = score(doc=617,freq=5.0), product of:
          0.56624025 = queryWeight, product of:
            5.0929155 = boost
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.016447458 = queryNorm
          0.9447143 = fieldWeight in 617, product of:
            2.236068 = tf(freq=5.0), with freq of:
              5.0 = termFreq=5.0
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.0625 = fieldNorm(doc=617)
    0.28 = coord(7/25)
  3. Quan-Haase, A.; Ho, D.: Online privacy concerns and privacy protection strategies among older adults in East York, Canada (2020) 0.19 
    0.18850966 = sum of:
  0.18850966 = product of:
    0.9425483 = sum of:
      0.020415887 = weight(abstract_txt:them in 933) [ClassicSimilarity], result of:
        0.020415887 = score(doc=933,freq=1.0), product of:
          0.07610182 = queryWeight, product of:
            1.0779608 = boost
            4.292331 = idf(docFreq=1650, maxDocs=44421)
            0.016447458 = queryNorm
          0.2682707 = fieldWeight in 933, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.292331 = idf(docFreq=1650, maxDocs=44421)
            0.0625 = fieldNorm(doc=933)
      0.07154317 = weight(abstract_txt:profile in 933) [ClassicSimilarity], result of:
        0.07154317 = score(doc=933,freq=1.0), product of:
          0.17557459 = queryWeight, product of:
            1.6373303 = boost
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.016447458 = queryNorm
          0.40748024 = fieldWeight in 933, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.519684 = idf(docFreq=177, maxDocs=44421)
            0.0625 = fieldNorm(doc=933)
      0.07489016 = weight(abstract_txt:their in 933) [ClassicSimilarity], result of:
        0.07489016 = score(doc=933,freq=7.0), product of:
          0.14366667 = queryWeight, product of:
            2.7708788 = boost
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.016447458 = queryNorm
          0.5212772 = fieldWeight in 933, product of:
            2.6457512 = tf(freq=7.0), with freq of:
              7.0 = termFreq=7.0
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.0625 = fieldNorm(doc=933)
      0.05800803 = weight(abstract_txt:users in 933) [ClassicSimilarity], result of:
        0.05800803 = score(doc=933,freq=2.0), product of:
          0.18397307 = queryWeight, product of:
            3.135571 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.016447458 = queryNorm
          0.31530717 = fieldWeight in 933, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0625 = fieldNorm(doc=933)
      0.717691 = weight(abstract_txt:privacy in 933) [ClassicSimilarity], result of:
        0.717691 = score(doc=933,freq=9.0), product of:
          0.56624025 = queryWeight, product of:
            5.0929155 = boost
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.016447458 = queryNorm
          1.2674673 = fieldWeight in 933, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.0625 = fieldNorm(doc=933)
    0.2 = coord(5/25)
  4. Wisniewski, P.; Xu, H.; Lipford, H.; Bello-Ogunu, E.: Facebook apps and tagging : the trade-off between personal privacy and engaging with friends (2015) 0.19 
    0.18588637 = sum of:
  0.18588637 = product of:
    0.9294318 = sum of:
      0.020387229 = weight(abstract_txt:model in 3165) [ClassicSimilarity], result of:
        0.020387229 = score(doc=3165,freq=1.0), product of:
          0.065521166 = queryWeight, product of:
            1.0002217 = boost
            3.9827821 = idf(docFreq=2249, maxDocs=44421)
            0.016447458 = queryNorm
          0.31115484 = fieldWeight in 3165, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            3.9827821 = idf(docFreq=2249, maxDocs=44421)
            0.078125 = fieldNorm(doc=3165)
      0.023971519 = weight(abstract_txt:however in 3165) [ClassicSimilarity], result of:
        0.023971519 = score(doc=3165,freq=1.0), product of:
          0.072991654 = queryWeight, product of:
            1.0557038 = boost
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.016447458 = queryNorm
          0.3284145 = fieldWeight in 3165, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.078125 = fieldNorm(doc=3165)
      0.050038096 = weight(abstract_txt:their in 3165) [ClassicSimilarity], result of:
        0.050038096 = score(doc=3165,freq=2.0), product of:
          0.14366667 = queryWeight, product of:
            2.7708788 = boost
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.016447458 = queryNorm
          0.348293 = fieldWeight in 3165, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.078125 = fieldNorm(doc=3165)
      0.10254468 = weight(abstract_txt:users in 3165) [ClassicSimilarity], result of:
        0.10254468 = score(doc=3165,freq=4.0), product of:
          0.18397307 = queryWeight, product of:
            3.135571 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.016447458 = queryNorm
          0.5573896 = fieldWeight in 3165, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.078125 = fieldNorm(doc=3165)
      0.73249024 = weight(abstract_txt:privacy in 3165) [ClassicSimilarity], result of:
        0.73249024 = score(doc=3165,freq=6.0), product of:
          0.56624025 = queryWeight, product of:
            5.0929155 = boost
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.016447458 = queryNorm
          1.2936033 = fieldWeight in 3165, product of:
            2.4494898 = tf(freq=6.0), with freq of:
              6.0 = termFreq=6.0
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.078125 = fieldNorm(doc=3165)
    0.2 = coord(5/25)
  5. Wu, Z.; Lu, C.; Zhao, Y.; Xie, J.; Zou, D.; Su, X.: ¬The protection of user preference privacy in personalized information retrieval : challenges and overviews (2021) 0.17 
    0.17409468 = sum of:
  0.17409468 = product of:
    0.8704734 = sum of:
      0.019177215 = weight(abstract_txt:however in 1521) [ClassicSimilarity], result of:
        0.019177215 = score(doc=1521,freq=1.0), product of:
          0.072991654 = queryWeight, product of:
            1.0557038 = boost
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.016447458 = queryNorm
          0.2627316 = fieldWeight in 1521, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.203706 = idf(docFreq=1803, maxDocs=44421)
            0.0625 = fieldNorm(doc=1521)
      0.035566654 = weight(abstract_txt:still in 1521) [ClassicSimilarity], result of:
        0.035566654 = score(doc=1521,freq=1.0), product of:
          0.11018222 = queryWeight, product of:
            1.2970635 = boost
            5.164776 = idf(docFreq=689, maxDocs=44421)
            0.016447458 = queryNorm
          0.3227985 = fieldWeight in 1521, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.164776 = idf(docFreq=689, maxDocs=44421)
            0.0625 = fieldNorm(doc=1521)
      0.040030476 = weight(abstract_txt:their in 1521) [ClassicSimilarity], result of:
        0.040030476 = score(doc=1521,freq=2.0), product of:
          0.14366667 = queryWeight, product of:
            2.7708788 = boost
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.016447458 = queryNorm
          0.2786344 = fieldWeight in 1521, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1523883 = idf(docFreq=5161, maxDocs=44421)
            0.0625 = fieldNorm(doc=1521)
      0.05800803 = weight(abstract_txt:users in 1521) [ClassicSimilarity], result of:
        0.05800803 = score(doc=1521,freq=2.0), product of:
          0.18397307 = queryWeight, product of:
            3.135571 = boost
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.016447458 = queryNorm
          0.31530717 = fieldWeight in 1521, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.5672934 = idf(docFreq=3408, maxDocs=44421)
            0.0625 = fieldNorm(doc=1521)
      0.717691 = weight(abstract_txt:privacy in 1521) [ClassicSimilarity], result of:
        0.717691 = score(doc=1521,freq=9.0), product of:
          0.56624025 = queryWeight, product of:
            5.0929155 = boost
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.016447458 = queryNorm
          1.2674673 = fieldWeight in 1521, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            6.759825 = idf(docFreq=139, maxDocs=44421)
            0.0625 = fieldNorm(doc=1521)
    0.2 = coord(5/25)