Document (#25306)

Author
Bar-Ilan, J.
Title
Methods for measuring search engine performance over time
Source
Journal of the American Society for Information Science and technology. 53(2002) no.4, S.308-319
Year
2002
Abstract
This study introduces methods for evaluating search engine performance over a time period. Several measures are defined, which as a whole describe search engine functionality over time. The necessary setup for such studies is described, and the use of these measures is illustrated through a specific example. The set of measures introduced here may serve as a guideline for the search engines for testing and improving their functionality. We recommend setting up a standard suite of measures for evaluating search engine performance.
Theme
Suchmaschinen
Retrievalstudien

Similar documents (author)

  1. Ilan, J. Bar- => Bar-Ilan, J.: 4.29 
    4.290662 = sum of:
  4.290662 = weight(author_txt:ilan in 4392) [ClassicSimilarity], result of:
    4.290662 = fieldWeight in 4392, product of:
      1.4142135 = tf(freq=2.0), with freq of:
        2.0 = termFreq=2.0
      8.090549 = idf(docFreq=36, maxDocs=44421)
      0.375 = fieldNorm(doc=4392)
  2. Ilan, E. Bar- => Bar-Ilan, E.: 4.29 
    4.290662 = sum of:
  4.290662 = weight(author_txt:ilan in 4393) [ClassicSimilarity], result of:
    4.290662 = fieldWeight in 4393, product of:
      1.4142135 = tf(freq=2.0), with freq of:
        2.0 = termFreq=2.0
      8.090549 = idf(docFreq=36, maxDocs=44421)
      0.375 = fieldNorm(doc=4393)
  3. Bar-Ilan, J.: Information hub blogs (2005) 4.05 
    4.0452747 = sum of:
  4.0452747 = weight(author_txt:ilan in 193) [ClassicSimilarity], result of:
    4.0452747 = fieldWeight in 193, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.090549 = idf(docFreq=36, maxDocs=44421)
      0.5 = fieldNorm(doc=193)
  4. Bar-Ilan, J.: Evaluating the stability of the search tools Hotbot and Snap : a case study (2000) 4.05 
    4.0452747 = sum of:
  4.0452747 = weight(author_txt:ilan in 2180) [ClassicSimilarity], result of:
    4.0452747 = fieldWeight in 2180, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.090549 = idf(docFreq=36, maxDocs=44421)
      0.5 = fieldNorm(doc=2180)
  5. Bar-Ilan, J.: On the overlap, the precision and estimated recall of search engines : a case study of the query 'Erdös' (1998) 4.05 
    4.0452747 = sum of:
  4.0452747 = weight(author_txt:ilan in 4753) [ClassicSimilarity], result of:
    4.0452747 = fieldWeight in 4753, product of:
      1.0 = tf(freq=1.0), with freq of:
        1.0 = termFreq=1.0
      8.090549 = idf(docFreq=36, maxDocs=44421)
      0.5 = fieldNorm(doc=4753)

Similar documents (content)

  1. Bar-Ilan, J.; Peritz, B.C.: ¬A method for measuring the evolution of a topic on the Web : the case of "informetrics" (2009) 0.22 
    0.21695425 = sum of:
  0.21695425 = product of:
    0.60265064 = sum of:
      0.032459904 = weight(abstract_txt:necessary in 76) [ClassicSimilarity], result of:
        0.032459904 = score(doc=76,freq=1.0), product of:
          0.09632824 = queryWeight, product of:
            5.391549 = idf(docFreq=549, maxDocs=44421)
            0.017866524 = queryNorm
          0.33697182 = fieldWeight in 76, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.391549 = idf(docFreq=549, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.034629777 = weight(abstract_txt:here in 76) [ClassicSimilarity], result of:
        0.034629777 = score(doc=76,freq=1.0), product of:
          0.10057467 = queryWeight, product of:
            1.0218037 = boost
            5.509105 = idf(docFreq=488, maxDocs=44421)
            0.017866524 = queryNorm
          0.34431908 = fieldWeight in 76, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.509105 = idf(docFreq=488, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.052418713 = weight(abstract_txt:period in 76) [ClassicSimilarity], result of:
        0.052418713 = score(doc=76,freq=2.0), product of:
          0.105237305 = queryWeight, product of:
            1.0452209 = boost
            5.6353593 = idf(docFreq=430, maxDocs=44421)
            0.017866524 = queryNorm
          0.4981001 = fieldWeight in 76, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.6353593 = idf(docFreq=430, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.061851814 = weight(abstract_txt:illustrated in 76) [ClassicSimilarity], result of:
        0.061851814 = score(doc=76,freq=1.0), product of:
          0.14805524 = queryWeight, product of:
            1.2397528 = boost
            6.684188 = idf(docFreq=150, maxDocs=44421)
            0.017866524 = queryNorm
          0.41776174 = fieldWeight in 76, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.684188 = idf(docFreq=150, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.029466596 = weight(abstract_txt:methods in 76) [ClassicSimilarity], result of:
        0.029466596 = score(doc=76,freq=1.0), product of:
          0.11378512 = queryWeight, product of:
            1.537025 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.017866524 = queryNorm
          0.25896704 = fieldWeight in 76, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.062745206 = weight(abstract_txt:time in 76) [ClassicSimilarity], result of:
        0.062745206 = score(doc=76,freq=2.0), product of:
          0.17110904 = queryWeight, product of:
            2.308449 = boost
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.017866524 = queryNorm
          0.36669722 = fieldWeight in 76, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.061261237 = weight(abstract_txt:performance in 76) [ClassicSimilarity], result of:
        0.061261237 = score(doc=76,freq=1.0), product of:
          0.2121712 = queryWeight, product of:
            2.5705557 = boost
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.017866524 = queryNorm
          0.28873494 = fieldWeight in 76, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.07148425 = weight(abstract_txt:search in 76) [ClassicSimilarity], result of:
        0.07148425 = score(doc=76,freq=2.0), product of:
          0.2212971 = queryWeight, product of:
            3.389191 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017866524 = queryNorm
          0.3230239 = fieldWeight in 76, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
      0.19633314 = weight(abstract_txt:engine in 76) [ClassicSimilarity], result of:
        0.19633314 = score(doc=76,freq=2.0), product of:
          0.4028975 = queryWeight, product of:
            4.0902557 = boost
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.017866524 = queryNorm
          0.48730296 = fieldWeight in 76, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.0625 = fieldNorm(doc=76)
    0.36 = coord(9/25)
  2. Thelwall, M.: Assessing web search engines : a webometric approach (2011) 0.19 
    0.18517679 = sum of:
  0.18517679 = product of:
    0.77156997 = sum of:
      0.0512092 = weight(abstract_txt:introduces in 1010) [ClassicSimilarity], result of:
        0.0512092 = score(doc=1010,freq=1.0), product of:
          0.11249869 = queryWeight, product of:
            1.0806795 = boost
            5.8265367 = idf(docFreq=355, maxDocs=44421)
            0.017866524 = queryNorm
          0.45519817 = fieldWeight in 1010, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8265367 = idf(docFreq=355, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
      0.05545945 = weight(abstract_txt:time in 1010) [ClassicSimilarity], result of:
        0.05545945 = score(doc=1010,freq=1.0), product of:
          0.17110904 = queryWeight, product of:
            2.308449 = boost
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.017866524 = queryNorm
          0.3241176 = fieldWeight in 1010, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
      0.05931524 = weight(abstract_txt:over in 1010) [ClassicSimilarity], result of:
        0.05931524 = score(doc=1010,freq=1.0), product of:
          0.17895071 = queryWeight, product of:
            2.3607528 = boost
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.017866524 = queryNorm
          0.3314613 = fieldWeight in 1010, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
      0.12636748 = weight(abstract_txt:search in 1010) [ClassicSimilarity], result of:
        0.12636748 = score(doc=1010,freq=4.0), product of:
          0.2212971 = queryWeight, product of:
            3.389191 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017866524 = queryNorm
          0.5710309 = fieldWeight in 1010, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
      0.23380215 = weight(abstract_txt:measures in 1010) [ClassicSimilarity], result of:
        0.23380215 = score(doc=1010,freq=2.0), product of:
          0.39008373 = queryWeight, product of:
            4.024687 = boost
            5.424824 = idf(docFreq=531, maxDocs=44421)
            0.017866524 = queryNorm
          0.59936404 = fieldWeight in 1010, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.424824 = idf(docFreq=531, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
      0.24541645 = weight(abstract_txt:engine in 1010) [ClassicSimilarity], result of:
        0.24541645 = score(doc=1010,freq=2.0), product of:
          0.4028975 = queryWeight, product of:
            4.0902557 = boost
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.017866524 = queryNorm
          0.6091287 = fieldWeight in 1010, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.078125 = fieldNorm(doc=1010)
    0.24 = coord(6/25)
  3. Oppenheim, C.; Morris, A.; McKnight, C.: ¬The evaluation of WWW search engines (2000) 0.18 
    0.18088277 = sum of:
  0.18088277 = product of:
    0.64600986 = sum of:
      0.11792227 = weight(abstract_txt:recommend in 5546) [ClassicSimilarity], result of:
        0.11792227 = score(doc=5546,freq=1.0), product of:
          0.19617607 = queryWeight, product of:
            1.427073 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017866524 = queryNorm
          0.60110426 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.036833245 = weight(abstract_txt:methods in 5546) [ClassicSimilarity], result of:
        0.036833245 = score(doc=5546,freq=1.0), product of:
          0.11378512 = queryWeight, product of:
            1.537025 = boost
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.017866524 = queryNorm
          0.3237088 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1434727 = idf(docFreq=1915, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.05545945 = weight(abstract_txt:time in 5546) [ClassicSimilarity], result of:
        0.05545945 = score(doc=5546,freq=1.0), product of:
          0.17110904 = queryWeight, product of:
            2.308449 = boost
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.017866524 = queryNorm
          0.3241176 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.05931524 = weight(abstract_txt:over in 5546) [ClassicSimilarity], result of:
        0.05931524 = score(doc=5546,freq=1.0), product of:
          0.17895071 = queryWeight, product of:
            2.3607528 = boost
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.017866524 = queryNorm
          0.3314613 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.076576546 = weight(abstract_txt:performance in 5546) [ClassicSimilarity], result of:
        0.076576546 = score(doc=5546,freq=1.0), product of:
          0.2121712 = queryWeight, product of:
            2.5705557 = boost
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.017866524 = queryNorm
          0.36091867 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.12636748 = weight(abstract_txt:search in 5546) [ClassicSimilarity], result of:
        0.12636748 = score(doc=5546,freq=4.0), product of:
          0.2212971 = queryWeight, product of:
            3.389191 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017866524 = queryNorm
          0.5710309 = fieldWeight in 5546, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
      0.17353562 = weight(abstract_txt:engine in 5546) [ClassicSimilarity], result of:
        0.17353562 = score(doc=5546,freq=1.0), product of:
          0.4028975 = queryWeight, product of:
            4.0902557 = boost
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.017866524 = queryNorm
          0.43071902 = fieldWeight in 5546, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.078125 = fieldNorm(doc=5546)
    0.28 = coord(7/25)
  4. Shah, C.; Hendahewa, C.; González-Ibáñez, R.: Rain or shine? : forecasting search process performance in exploratory search tasks (2016) 0.17 
    0.16933085 = sum of:
  0.16933085 = product of:
    0.604753 = sum of:
      0.034629777 = weight(abstract_txt:here in 4012) [ClassicSimilarity], result of:
        0.034629777 = score(doc=4012,freq=1.0), product of:
          0.10057467 = queryWeight, product of:
            1.0218037 = boost
            5.509105 = idf(docFreq=488, maxDocs=44421)
            0.017866524 = queryNorm
          0.34431908 = fieldWeight in 4012, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.509105 = idf(docFreq=488, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.050575014 = weight(abstract_txt:testing in 4012) [ClassicSimilarity], result of:
        0.050575014 = score(doc=4012,freq=1.0), product of:
          0.12946315 = queryWeight, product of:
            1.1593012 = boost
            6.250429 = idf(docFreq=232, maxDocs=44421)
            0.017866524 = queryNorm
          0.39065182 = fieldWeight in 4012, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            6.250429 = idf(docFreq=232, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.09433781 = weight(abstract_txt:recommend in 4012) [ClassicSimilarity], result of:
        0.09433781 = score(doc=4012,freq=1.0), product of:
          0.19617607 = queryWeight, product of:
            1.427073 = boost
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.017866524 = queryNorm
          0.4808834 = fieldWeight in 4012, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            7.694134 = idf(docFreq=54, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.08241235 = weight(abstract_txt:evaluating in 4012) [ClassicSimilarity], result of:
        0.08241235 = score(doc=4012,freq=1.0), product of:
          0.22587094 = queryWeight, product of:
            2.1655507 = boost
            5.8378363 = idf(docFreq=351, maxDocs=44421)
            0.017866524 = queryNorm
          0.36486477 = fieldWeight in 4012, product of:
            1.0 = tf(freq=1.0), with freq of:
              1.0 = termFreq=1.0
            5.8378363 = idf(docFreq=351, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.07684687 = weight(abstract_txt:time in 4012) [ClassicSimilarity], result of:
        0.07684687 = score(doc=4012,freq=3.0), product of:
          0.17110904 = queryWeight, product of:
            2.308449 = boost
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.017866524 = queryNorm
          0.44911054 = fieldWeight in 4012, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.10610758 = weight(abstract_txt:performance in 4012) [ClassicSimilarity], result of:
        0.10610758 = score(doc=4012,freq=3.0), product of:
          0.2121712 = queryWeight, product of:
            2.5705557 = boost
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.017866524 = queryNorm
          0.5001036 = fieldWeight in 4012, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            4.619759 = idf(docFreq=1189, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
      0.15984364 = weight(abstract_txt:search in 4012) [ClassicSimilarity], result of:
        0.15984364 = score(doc=4012,freq=10.0), product of:
          0.2212971 = queryWeight, product of:
            3.389191 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017866524 = queryNorm
          0.72230333 = fieldWeight in 4012, product of:
            3.1622777 = tf(freq=10.0), with freq of:
              10.0 = termFreq=10.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0625 = fieldNorm(doc=4012)
    0.28 = coord(7/25)
  5. Bar-Ilan, J.; Levene, M.; Mat-Hassan, M.: Methods for evaluating dynamic changes in search engine rankings : a case study (2006) 0.17 
    0.16529536 = sum of:
  0.16529536 = product of:
    0.6887307 = sum of:
      0.045866374 = weight(abstract_txt:period in 741) [ClassicSimilarity], result of:
        0.045866374 = score(doc=741,freq=2.0), product of:
          0.105237305 = queryWeight, product of:
            1.0452209 = boost
            5.6353593 = idf(docFreq=430, maxDocs=44421)
            0.017866524 = queryNorm
          0.4358376 = fieldWeight in 741, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.6353593 = idf(docFreq=430, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
      0.054902054 = weight(abstract_txt:time in 741) [ClassicSimilarity], result of:
        0.054902054 = score(doc=741,freq=2.0), product of:
          0.17110904 = queryWeight, product of:
            2.308449 = boost
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.017866524 = queryNorm
          0.32086006 = fieldWeight in 741, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.1487055 = idf(docFreq=1905, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
      0.08304133 = weight(abstract_txt:over in 741) [ClassicSimilarity], result of:
        0.08304133 = score(doc=741,freq=4.0), product of:
          0.17895071 = queryWeight, product of:
            2.3607528 = boost
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.017866524 = queryNorm
          0.46404585 = fieldWeight in 741, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.242705 = idf(docFreq=1734, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
      0.13268587 = weight(abstract_txt:search in 741) [ClassicSimilarity], result of:
        0.13268587 = score(doc=741,freq=9.0), product of:
          0.2212971 = queryWeight, product of:
            3.389191 = boost
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.017866524 = queryNorm
          0.5995825 = fieldWeight in 741, product of:
            3.0 = tf(freq=9.0), with freq of:
              9.0 = termFreq=9.0
            3.654598 = idf(docFreq=3123, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
      0.20044361 = weight(abstract_txt:measures in 741) [ClassicSimilarity], result of:
        0.20044361 = score(doc=741,freq=3.0), product of:
          0.39008373 = queryWeight, product of:
            4.024687 = boost
            5.424824 = idf(docFreq=531, maxDocs=44421)
            0.017866524 = queryNorm
          0.51384765 = fieldWeight in 741, product of:
            1.7320508 = tf(freq=3.0), with freq of:
              3.0 = termFreq=3.0
            5.424824 = idf(docFreq=531, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
      0.1717915 = weight(abstract_txt:engine in 741) [ClassicSimilarity], result of:
        0.1717915 = score(doc=741,freq=2.0), product of:
          0.4028975 = queryWeight, product of:
            4.0902557 = boost
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.017866524 = queryNorm
          0.42639008 = fieldWeight in 741, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            5.5132036 = idf(docFreq=486, maxDocs=44421)
            0.0546875 = fieldNorm(doc=741)
    0.24 = coord(6/25)