Document (#22589)

Author
Bar-Ilan, J.
Title
¬The Web as an information source on informetrics? : A content analysis
Source
Journal of the American Society for Information Science. 51(2000) no.5, S.432-443
Year
2000
Abstract
This article addresses the question of whether the Web can serve as an information source for research. Specifically, it analyzes by way of content analysis the Web pages retrieved by the major search engines on a particular date (June 7, 1998), as a result of the query 'informetrics OR informetric'. In 807 out of the 942 retrieved pages, the search terms were mentioned in the context of information science. Over 70% of the pages contained only indirect information on the topic, in the form of hypertext links and bibliographical references without annotation. The bibliographical references extracted from the Web pages were analyzed, and lists of most productive authors, most cited authors, works, and sources were compiled. The list of reference obtained from the Web was also compared to data retrieved from commercial databases. For most cases, the list of references extracted from the Web outperformed the commercial, bibliographic databases. The results of these comparisons indicate that valuable, freely available data is hidden in the Web waiting to be extracted from the millions of Web pages
Theme
Internet
Informetrie
Retrievalstudien
Object
WWW

Similar documents (author)

  1. Ilan, J. Bar- => Bar-Ilan, J.: 4.26
    4.2647905 = sum of:
      4.2647905 = weight(author_txt:ilan in 311) [ClassicSimilarity], result of:
        4.2647905 = fieldWeight in 311, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.041766 = idf(docFreq=36, maxDocs=42306)
          0.375 = fieldNorm(doc=311)
    
  2. Ilan, E. Bar- => Bar-Ilan, E.: 4.26
    4.2647905 = sum of:
      4.2647905 = weight(author_txt:ilan in 312) [ClassicSimilarity], result of:
        4.2647905 = fieldWeight in 312, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.041766 = idf(docFreq=36, maxDocs=42306)
          0.375 = fieldNorm(doc=312)
    
  3. Bar-Ilan, J.: Information hub blogs (2005) 4.02
    4.020883 = sum of:
      4.020883 = weight(author_txt:ilan in 193) [ClassicSimilarity], result of:
        4.020883 = fieldWeight in 193, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.041766 = idf(docFreq=36, maxDocs=42306)
          0.5 = fieldNorm(doc=193)
    
  4. Bar-Ilan, J.: Evaluating the stability of the search tools Hotbot and Snap : a case study (2000) 4.02
    4.020883 = sum of:
      4.020883 = weight(author_txt:ilan in 2181) [ClassicSimilarity], result of:
        4.020883 = fieldWeight in 2181, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.041766 = idf(docFreq=36, maxDocs=42306)
          0.5 = fieldNorm(doc=2181)
    
  5. Bar-Ilan, J.: On the overlap, the precision and estimated recall of search engines : a case study of the query 'Erdös' (1998) 4.02
    4.020883 = sum of:
      4.020883 = weight(author_txt:ilan in 4754) [ClassicSimilarity], result of:
        4.020883 = fieldWeight in 4754, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.041766 = idf(docFreq=36, maxDocs=42306)
          0.5 = fieldNorm(doc=4754)
    

Similar documents (content)

  1. Khoo, C.S.G.; Ng, K.; Ou, S.: ¬An exploratory study of human clustering of Web pages (2003) 0.26
    0.2569305 = sum of:
      0.2569305 = product of:
        0.71369576 = sum of:
          0.035774477 = weight(abstract_txt:search in 3742) [ClassicSimilarity], result of:
            0.035774477 = score(doc=3742,freq=8.0), product of:
              0.07381035 = queryWeight, product of:
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.020190516 = queryNorm
              0.48468107 = fieldWeight in 3742, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.026699116 = weight(abstract_txt:authors in 3742) [ClassicSimilarity], result of:
            0.026699116 = score(doc=3742,freq=1.0), product of:
              0.12145898 = queryWeight, product of:
                1.2827919 = boost
                4.689494 = idf(docFreq=1056, maxDocs=42306)
                0.020190516 = queryNorm
              0.21982004 = fieldWeight in 3742, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.689494 = idf(docFreq=1056, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.012961915 = weight(abstract_txt:information in 3742) [ClassicSimilarity], result of:
            0.012961915 = score(doc=3742,freq=3.0), product of:
              0.06554115 = queryWeight, product of:
                1.3326417 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.020190516 = queryNorm
              0.19776759 = fieldWeight in 3742, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.034755044 = weight(abstract_txt:source in 3742) [ClassicSimilarity], result of:
            0.034755044 = score(doc=3742,freq=1.0), product of:
              0.14480278 = queryWeight, product of:
                1.4006506 = boost
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.020190516 = queryNorm
              0.2400164 = fieldWeight in 3742, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.040481117 = weight(abstract_txt:list in 3742) [ClassicSimilarity], result of:
            0.040481117 = score(doc=3742,freq=1.0), product of:
              0.16029993 = queryWeight, product of:
                1.4736965 = boost
                5.387383 = idf(docFreq=525, maxDocs=42306)
                0.020190516 = queryNorm
              0.25253358 = fieldWeight in 3742, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.387383 = idf(docFreq=525, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.039399374 = weight(abstract_txt:were in 3742) [ClassicSimilarity], result of:
            0.039399374 = score(doc=3742,freq=4.0), product of:
              0.113527656 = queryWeight, product of:
                1.5189303 = boost
                3.7018294 = idf(docFreq=2837, maxDocs=42306)
                0.020190516 = queryNorm
              0.3470465 = fieldWeight in 3742, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.7018294 = idf(docFreq=2837, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.024293872 = weight(abstract_txt:most in 3742) [ClassicSimilarity], result of:
            0.024293872 = score(doc=3742,freq=1.0), product of:
              0.13055493 = queryWeight, product of:
                1.6288595 = boost
                3.969741 = idf(docFreq=2170, maxDocs=42306)
                0.020190516 = queryNorm
              0.18608162 = fieldWeight in 3742, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.969741 = idf(docFreq=2170, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.16120628 = weight(abstract_txt:retrieved in 3742) [ClassicSimilarity], result of:
            0.16120628 = score(doc=3742,freq=5.0), product of:
              0.26960424 = queryWeight, product of:
                2.340725 = boost
                5.704649 = idf(docFreq=382, maxDocs=42306)
                0.020190516 = queryNorm
              0.59793675 = fieldWeight in 3742, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.704649 = idf(docFreq=382, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
          0.33812454 = weight(abstract_txt:pages in 3742) [ClassicSimilarity], result of:
            0.33812454 = score(doc=3742,freq=9.0), product of:
              0.43057486 = queryWeight, product of:
                3.8188775 = boost
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.020190516 = queryNorm
              0.7852863 = fieldWeight in 3742, product of:
                3.0 = tf(freq=9.0), with freq of:
                  9.0 = termFreq=9.0
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.046875 = fieldNorm(doc=3742)
        0.36 = coord(9/25)
    
  2. Bar-Ilan, J.: Web links and search engine ranking : the case of Google and the query "Jew" (2006) 0.22
    0.2209622 = sum of:
      0.2209622 = product of:
        0.61378384 = sum of:
          0.023849651 = weight(abstract_txt:search in 1105) [ClassicSimilarity], result of:
            0.023849651 = score(doc=1105,freq=2.0), product of:
              0.07381035 = queryWeight, product of:
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.020190516 = queryNorm
              0.3231207 = fieldWeight in 1105, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.017485868 = weight(abstract_txt:analysis in 1105) [ClassicSimilarity], result of:
            0.017485868 = score(doc=1105,freq=1.0), product of:
              0.07561315 = queryWeight, product of:
                1.0121387 = boost
                3.7000692 = idf(docFreq=2842, maxDocs=42306)
                0.020190516 = queryNorm
              0.23125432 = fieldWeight in 1105, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.7000692 = idf(docFreq=2842, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.03637087 = weight(abstract_txt:content in 1105) [ClassicSimilarity], result of:
            0.03637087 = score(doc=1105,freq=2.0), product of:
              0.097790875 = queryWeight, product of:
                1.1510403 = boost
                4.207851 = idf(docFreq=1710, maxDocs=42306)
                0.020190516 = queryNorm
              0.371925 = fieldWeight in 1105, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.207851 = idf(docFreq=1710, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.0141111445 = weight(abstract_txt:information in 1105) [ClassicSimilarity], result of:
            0.0141111445 = score(doc=1105,freq=2.0), product of:
              0.06554115 = queryWeight, product of:
                1.3326417 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.020190516 = queryNorm
              0.21530207 = fieldWeight in 1105, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.06619308 = weight(abstract_txt:commercial in 1105) [ClassicSimilarity], result of:
            0.06619308 = score(doc=1105,freq=1.0), product of:
              0.18365987 = queryWeight, product of:
                1.5774243 = boost
                5.76658 = idf(docFreq=359, maxDocs=42306)
                0.020190516 = queryNorm
              0.36041126 = fieldWeight in 1105, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.76658 = idf(docFreq=359, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.032391828 = weight(abstract_txt:most in 1105) [ClassicSimilarity], result of:
            0.032391828 = score(doc=1105,freq=1.0), product of:
              0.13055493 = queryWeight, product of:
                1.6288595 = boost
                3.969741 = idf(docFreq=2170, maxDocs=42306)
                0.020190516 = queryNorm
              0.24810882 = fieldWeight in 1105, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.969741 = idf(docFreq=2170, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.026701352 = weight(abstract_txt:from in 1105) [ClassicSimilarity], result of:
            0.026701352 = score(doc=1105,freq=2.0), product of:
              0.10801018 = queryWeight, product of:
                1.9126862 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.020190516 = queryNorm
              0.24721143 = fieldWeight in 1105, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.09612484 = weight(abstract_txt:retrieved in 1105) [ClassicSimilarity], result of:
            0.09612484 = score(doc=1105,freq=1.0), product of:
              0.26960424 = queryWeight, product of:
                2.340725 = boost
                5.704649 = idf(docFreq=382, maxDocs=42306)
                0.020190516 = queryNorm
              0.35654056 = fieldWeight in 1105, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.704649 = idf(docFreq=382, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
          0.30055517 = weight(abstract_txt:pages in 1105) [ClassicSimilarity], result of:
            0.30055517 = score(doc=1105,freq=4.0), product of:
              0.43057486 = queryWeight, product of:
                3.8188775 = boost
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.020190516 = queryNorm
              0.6980323 = fieldWeight in 1105, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.0625 = fieldNorm(doc=1105)
        0.36 = coord(9/25)
    
  3. Summann, F.; Lossau, N.: Search engine technology and digital libraries : moving from theory to practice (2004) 0.21
    0.21233189 = sum of:
      0.21233189 = product of:
        0.5308297 = sum of:
          0.041736893 = weight(abstract_txt:search in 3197) [ClassicSimilarity], result of:
            0.041736893 = score(doc=3197,freq=8.0), product of:
              0.07381035 = queryWeight, product of:
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.020190516 = queryNorm
              0.5654613 = fieldWeight in 3197, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.062023897 = weight(abstract_txt:june in 3197) [ClassicSimilarity], result of:
            0.062023897 = score(doc=3197,freq=1.0), product of:
              0.15257962 = queryWeight, product of:
                1.0166575 = boost
                7.4331765 = idf(docFreq=67, maxDocs=42306)
                0.020190516 = queryNorm
              0.40650183 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.4331765 = idf(docFreq=67, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.025567245 = weight(abstract_txt:databases in 3197) [ClassicSimilarity], result of:
            0.025567245 = score(doc=3197,freq=1.0), product of:
              0.10647716 = queryWeight, product of:
                1.2010735 = boost
                4.390757 = idf(docFreq=1424, maxDocs=42306)
                0.020190516 = queryNorm
              0.24011953 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.390757 = idf(docFreq=1424, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.008730825 = weight(abstract_txt:information in 3197) [ClassicSimilarity], result of:
            0.008730825 = score(doc=3197,freq=1.0), product of:
              0.06554115 = queryWeight, product of:
                1.3326417 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.020190516 = queryNorm
              0.13321136 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.04054755 = weight(abstract_txt:source in 3197) [ClassicSimilarity], result of:
            0.04054755 = score(doc=3197,freq=1.0), product of:
              0.14480278 = queryWeight, product of:
                1.4006506 = boost
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.020190516 = queryNorm
              0.28001913 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.047227968 = weight(abstract_txt:list in 3197) [ClassicSimilarity], result of:
            0.047227968 = score(doc=3197,freq=1.0), product of:
              0.16029993 = queryWeight, product of:
                1.4736965 = boost
                5.387383 = idf(docFreq=525, maxDocs=42306)
                0.020190516 = queryNorm
              0.2946225 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.387383 = idf(docFreq=525, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.03250283 = weight(abstract_txt:were in 3197) [ClassicSimilarity], result of:
            0.03250283 = score(doc=3197,freq=2.0), product of:
              0.113527656 = queryWeight, product of:
                1.5189303 = boost
                3.7018294 = idf(docFreq=2837, maxDocs=42306)
                0.020190516 = queryNorm
              0.28629878 = fieldWeight in 3197, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7018294 = idf(docFreq=2837, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.05791895 = weight(abstract_txt:commercial in 3197) [ClassicSimilarity], result of:
            0.05791895 = score(doc=3197,freq=1.0), product of:
              0.18365987 = queryWeight, product of:
                1.5774243 = boost
                5.76658 = idf(docFreq=359, maxDocs=42306)
                0.020190516 = queryNorm
              0.31535986 = fieldWeight in 3197, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.76658 = idf(docFreq=359, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.028614553 = weight(abstract_txt:from in 3197) [ClassicSimilarity], result of:
            0.028614553 = score(doc=3197,freq=3.0), product of:
              0.10801018 = queryWeight, product of:
                1.9126862 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.020190516 = queryNorm
              0.2649246 = fieldWeight in 3197, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
          0.18595903 = weight(abstract_txt:pages in 3197) [ClassicSimilarity], result of:
            0.18595903 = score(doc=3197,freq=2.0), product of:
              0.43057486 = queryWeight, product of:
                3.8188775 = boost
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.020190516 = queryNorm
              0.43188545 = fieldWeight in 3197, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.0546875 = fieldNorm(doc=3197)
        0.4 = coord(10/25)
    
  4. Bar-Ilan, J.: Informetrics (2009) 0.20
    0.19745752 = sum of:
      0.19745752 = product of:
        0.8227397 = sum of:
          0.037858013 = weight(abstract_txt:analysis in 823) [ClassicSimilarity], result of:
            0.037858013 = score(doc=823,freq=3.0), product of:
              0.07561315 = queryWeight, product of:
                1.0121387 = boost
                3.7000692 = idf(docFreq=2842, maxDocs=42306)
                0.020190516 = queryNorm
              0.50068027 = fieldWeight in 823, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.7000692 = idf(docFreq=2842, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
          0.14262079 = weight(abstract_txt:informetric in 823) [ClassicSimilarity], result of:
            0.14262079 = score(doc=823,freq=2.0), product of:
              0.16632892 = queryWeight, product of:
                1.0614762 = boost
                7.760864 = idf(docFreq=48, maxDocs=42306)
                0.020190516 = queryNorm
              0.85746235 = fieldWeight in 823, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.760864 = idf(docFreq=48, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
          0.036524635 = weight(abstract_txt:databases in 823) [ClassicSimilarity], result of:
            0.036524635 = score(doc=823,freq=1.0), product of:
              0.10647716 = queryWeight, product of:
                1.2010735 = boost
                4.390757 = idf(docFreq=1424, maxDocs=42306)
                0.020190516 = queryNorm
              0.3430279 = fieldWeight in 823, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.390757 = idf(docFreq=1424, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
          0.017638931 = weight(abstract_txt:information in 823) [ClassicSimilarity], result of:
            0.017638931 = score(doc=823,freq=2.0), product of:
              0.06554115 = queryWeight, product of:
                1.3326417 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.020190516 = queryNorm
              0.26912758 = fieldWeight in 823, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
          0.4002504 = weight(abstract_txt:informetrics in 823) [ClassicSimilarity], result of:
            0.4002504 = score(doc=823,freq=4.0), product of:
              0.33092815 = queryWeight, product of:
                2.117426 = boost
                7.740661 = idf(docFreq=49, maxDocs=42306)
                0.020190516 = queryNorm
              1.2094783 = fieldWeight in 823, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                7.740661 = idf(docFreq=49, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
          0.18784699 = weight(abstract_txt:pages in 823) [ClassicSimilarity], result of:
            0.18784699 = score(doc=823,freq=1.0), product of:
              0.43057486 = queryWeight, product of:
                3.8188775 = boost
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.020190516 = queryNorm
              0.4362702 = fieldWeight in 823, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.078125 = fieldNorm(doc=823)
        0.24 = coord(6/25)
    
  5. Bar-Ilan, J.; Peritz, B.C.: ¬A method for measuring the evolution of a topic on the Web : the case of "informetrics" (2009) 0.19
    0.19337873 = sum of:
      0.19337873 = product of:
        0.6906383 = sum of:
          0.023849651 = weight(abstract_txt:search in 90) [ClassicSimilarity], result of:
            0.023849651 = score(doc=90,freq=2.0), product of:
              0.07381035 = queryWeight, product of:
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.020190516 = queryNorm
              0.3231207 = fieldWeight in 90, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6556938 = idf(docFreq=2971, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.03637087 = weight(abstract_txt:content in 90) [ClassicSimilarity], result of:
            0.03637087 = score(doc=90,freq=2.0), product of:
              0.097790875 = queryWeight, product of:
                1.1510403 = boost
                4.207851 = idf(docFreq=1710, maxDocs=42306)
                0.020190516 = queryNorm
              0.371925 = fieldWeight in 90, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.207851 = idf(docFreq=1710, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.009978087 = weight(abstract_txt:information in 90) [ClassicSimilarity], result of:
            0.009978087 = score(doc=90,freq=1.0), product of:
              0.06554115 = queryWeight, product of:
                1.3326417 = boost
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.020190516 = queryNorm
              0.15224156 = fieldWeight in 90, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                2.435865 = idf(docFreq=10064, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.06553473 = weight(abstract_txt:source in 90) [ClassicSimilarity], result of:
            0.06553473 = score(doc=90,freq=2.0), product of:
              0.14480278 = queryWeight, product of:
                1.4006506 = boost
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.020190516 = queryNorm
              0.45257926 = fieldWeight in 90, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.12035 = idf(docFreq=686, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.026701352 = weight(abstract_txt:from in 90) [ClassicSimilarity], result of:
            0.026701352 = score(doc=90,freq=2.0), product of:
              0.10801018 = queryWeight, product of:
                1.9126862 = boost
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.020190516 = queryNorm
              0.24721143 = fieldWeight in 90, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.796878 = idf(docFreq=7014, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.16010016 = weight(abstract_txt:informetrics in 90) [ClassicSimilarity], result of:
            0.16010016 = score(doc=90,freq=1.0), product of:
              0.33092815 = queryWeight, product of:
                2.117426 = boost
                7.740661 = idf(docFreq=49, maxDocs=42306)
                0.020190516 = queryNorm
              0.48379132 = fieldWeight in 90, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.740661 = idf(docFreq=49, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
          0.3681034 = weight(abstract_txt:pages in 90) [ClassicSimilarity], result of:
            0.3681034 = score(doc=90,freq=6.0), product of:
              0.43057486 = queryWeight, product of:
                3.8188775 = boost
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.020190516 = queryNorm
              0.8549115 = fieldWeight in 90, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                5.5842586 = idf(docFreq=431, maxDocs=42306)
                0.0625 = fieldNorm(doc=90)
        0.28 = coord(7/25)