Document (#31106)

Author
Bar-Ilan, J.
Title
Web links and search engine ranking : the case of Google and the query "Jew"
Source
Journal of the American Society for Information Science and Technology. 57(2006) no.12, S.1581-1589
Year
2006
Abstract
The World Wide Web has become one of our more important information sources, and commercial search engines are the major tools for locating information; however, it is not enough for a Web page to be indexed by the search engines-it also must rank high on relevant queries. One of the parameters involved in ranking is the number and quality of links pointing to the page, based on the assumption that links convey appreciation for a page. This article presents the results of a content analysis of the links to two top pages retrieved by Google for the query "jew" as of July 2004: the "jew" entry on the free online encyclopedia Wikipedia, and the home page of "Jew Watch," a highly anti-Semitic site. The top results for the query "jew" gained public attention in April 2004, when it was noticed that the "Jew Watch" homepage ranked number 1. From this point on, both sides engaged in "Googlebombing" (i.e., increasing the number of links pointing to these pages). The results of the study show that most of the links to these pages come from blogs and discussion links, and the number of links pointing to these pages in appreciation of their content is extremely small. These findings have implications for ranking algorithms based on link counts, and emphasize the huge difference between Web links and citations in the scientific community.
Theme
Suchmaschinen
Object
Google
Wikipedia

Similar documents (author)

  1. Ilan, J. Bar- => Bar-Ilan, J.: 4.27
    4.270203 = sum of:
      4.270203 = weight(author_txt:ilan in 5393) [ClassicSimilarity], result of:
        4.270203 = fieldWeight in 5393, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.051972 = idf(docFreq=36, maxDocs=42740)
          0.375 = fieldNorm(doc=5393)
    
  2. Ilan, E. Bar- => Bar-Ilan, E.: 4.27
    4.270203 = sum of:
      4.270203 = weight(author_txt:ilan in 5394) [ClassicSimilarity], result of:
        4.270203 = fieldWeight in 5394, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.051972 = idf(docFreq=36, maxDocs=42740)
          0.375 = fieldNorm(doc=5394)
    
  3. Bar-Ilan, J.: Information hub blogs (2005) 4.03
    4.025986 = sum of:
      4.025986 = weight(author_txt:ilan in 193) [ClassicSimilarity], result of:
        4.025986 = fieldWeight in 193, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.051972 = idf(docFreq=36, maxDocs=42740)
          0.5 = fieldNorm(doc=193)
    
  4. Bar-Ilan, J.: Evaluating the stability of the search tools Hotbot and Snap : a case study (2000) 4.03
    4.025986 = sum of:
      4.025986 = weight(author_txt:ilan in 2181) [ClassicSimilarity], result of:
        4.025986 = fieldWeight in 2181, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.051972 = idf(docFreq=36, maxDocs=42740)
          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) 4.03
    4.025986 = sum of:
      4.025986 = weight(author_txt:ilan in 4754) [ClassicSimilarity], result of:
        4.025986 = fieldWeight in 4754, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          8.051972 = idf(docFreq=36, maxDocs=42740)
          0.5 = fieldNorm(doc=4754)
    

Similar documents (content)

  1. Souza, J.; Carvalho, A.; Cristo, M.; Moura, E.; Calado, P.; Chirita, P.-A.; Nejdl, W.: Using site-level connections to estimate link confidence (2012) 0.29
    0.29266074 = sum of:
      0.29266074 = product of:
        0.81294644 = sum of:
          0.018524844 = weight(abstract_txt:content in 2499) [ClassicSimilarity], result of:
            0.018524844 = score(doc=2499,freq=1.0), product of:
              0.07059806 = queryWeight, product of:
                1.1610447 = boost
                4.1983805 = idf(docFreq=1744, maxDocs=42740)
                0.014483116 = queryNorm
              0.26239878 = fieldWeight in 2499, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1983805 = idf(docFreq=1744, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.028058078 = weight(abstract_txt:results in 2499) [ClassicSimilarity], result of:
            0.028058078 = score(doc=2499,freq=3.0), product of:
              0.07390123 = queryWeight, product of:
                1.4548695 = boost
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.014483116 = queryNorm
              0.37967 = fieldWeight in 2499, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.052700892 = weight(abstract_txt:engines in 2499) [ClassicSimilarity], result of:
            0.052700892 = score(doc=2499,freq=2.0), product of:
              0.11250151 = queryWeight, product of:
                1.465655 = boost
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.014483116 = queryNorm
              0.46844608 = fieldWeight in 2499, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.040880106 = weight(abstract_txt:search in 2499) [ClassicSimilarity], result of:
            0.040880106 = score(doc=2499,freq=5.0), product of:
              0.08010718 = queryWeight, product of:
                1.5147256 = boost
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.014483116 = queryNorm
              0.5103176 = fieldWeight in 2499, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.056315478 = weight(abstract_txt:query in 2499) [ClassicSimilarity], result of:
            0.056315478 = score(doc=2499,freq=2.0), product of:
              0.13460524 = queryWeight, product of:
                1.9634923 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014483116 = queryNorm
              0.41837507 = fieldWeight in 2499, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.035166137 = weight(abstract_txt:number in 2499) [ClassicSimilarity], result of:
            0.035166137 = score(doc=2499,freq=1.0), product of:
              0.13636915 = queryWeight, product of:
                2.2820525 = boost
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.014483116 = queryNorm
              0.25787458 = fieldWeight in 2499, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.15108705 = weight(abstract_txt:pages in 2499) [ClassicSimilarity], result of:
            0.15108705 = score(doc=2499,freq=3.0), product of:
              0.24988726 = queryWeight, product of:
                3.0891545 = boost
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.014483116 = queryNorm
              0.6046209 = fieldWeight in 2499, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.15161765 = weight(abstract_txt:page in 2499) [ClassicSimilarity], result of:
            0.15161765 = score(doc=2499,freq=2.0), product of:
              0.28671882 = queryWeight, product of:
                3.3089917 = boost
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.014483116 = queryNorm
              0.5288026 = fieldWeight in 2499, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
          0.27859613 = weight(abstract_txt:links in 2499) [ClassicSimilarity], result of:
            0.27859613 = score(doc=2499,freq=3.0), product of:
              0.49238357 = queryWeight, product of:
                6.5044503 = boost
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.014483116 = queryNorm
              0.5658112 = fieldWeight in 2499, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.0625 = fieldNorm(doc=2499)
        0.36 = coord(9/25)
    
  2. Austin, D.: How Google finds your needle in the Web's haystack : as we'll see, the trick is to ask the web itself to rank the importance of pages... (2006) 0.25
    0.24681285 = sum of:
      0.24681285 = product of:
        0.6170321 = sum of:
          0.011578027 = weight(abstract_txt:content in 1219) [ClassicSimilarity], result of:
            0.011578027 = score(doc=1219,freq=1.0), product of:
              0.07059806 = queryWeight, product of:
                1.1610447 = boost
                4.1983805 = idf(docFreq=1744, maxDocs=42740)
                0.014483116 = queryNorm
              0.16399923 = fieldWeight in 1219, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1983805 = idf(docFreq=1744, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.0101245865 = weight(abstract_txt:results in 1219) [ClassicSimilarity], result of:
            0.0101245865 = score(doc=1219,freq=1.0), product of:
              0.07390123 = queryWeight, product of:
                1.4548695 = boost
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.014483116 = queryNorm
              0.1370016 = fieldWeight in 1219, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.032938056 = weight(abstract_txt:engines in 1219) [ClassicSimilarity], result of:
            0.032938056 = score(doc=1219,freq=2.0), product of:
              0.11250151 = queryWeight, product of:
                1.465655 = boost
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.014483116 = queryNorm
              0.2927788 = fieldWeight in 1219, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.054782744 = weight(abstract_txt:google in 1219) [ClassicSimilarity], result of:
            0.054782744 = score(doc=1219,freq=5.0), product of:
              0.11636139 = queryWeight, product of:
                1.4905859 = boost
                5.3900137 = idf(docFreq=529, maxDocs=42740)
                0.014483116 = queryNorm
              0.4707983 = fieldWeight in 1219, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.3900137 = idf(docFreq=529, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.03958199 = weight(abstract_txt:search in 1219) [ClassicSimilarity], result of:
            0.03958199 = score(doc=1219,freq=12.0), product of:
              0.08010718 = queryWeight, product of:
                1.5147256 = boost
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.014483116 = queryNorm
              0.4941129 = fieldWeight in 1219, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.031082766 = weight(abstract_txt:number in 1219) [ClassicSimilarity], result of:
            0.031082766 = score(doc=1219,freq=2.0), product of:
              0.13636915 = queryWeight, product of:
                2.2820525 = boost
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.014483116 = queryNorm
              0.22793107 = fieldWeight in 1219, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.05825743 = weight(abstract_txt:ranking in 1219) [ClassicSimilarity], result of:
            0.05825743 = score(doc=1219,freq=2.0), product of:
              0.18834655 = queryWeight, product of:
                2.322614 = boost
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.014483116 = queryNorm
              0.30930978 = fieldWeight in 1219, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.21115059 = weight(abstract_txt:pages in 1219) [ClassicSimilarity], result of:
            0.21115059 = score(doc=1219,freq=15.0), product of:
              0.24988726 = queryWeight, product of:
                3.0891545 = boost
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.014483116 = queryNorm
              0.8449834 = fieldWeight in 1219, product of:
                3.8729835 = tf(freq=15.0), with freq of:
                  15.0 = termFreq=15.0
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.06700616 = weight(abstract_txt:page in 1219) [ClassicSimilarity], result of:
            0.06700616 = score(doc=1219,freq=1.0), product of:
              0.28671882 = queryWeight, product of:
                3.3089917 = boost
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.014483116 = queryNorm
              0.23369992 = fieldWeight in 1219, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
          0.10052973 = weight(abstract_txt:links in 1219) [ClassicSimilarity], result of:
            0.10052973 = score(doc=1219,freq=1.0), product of:
              0.49238357 = queryWeight, product of:
                6.5044503 = boost
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.014483116 = queryNorm
              0.20416954 = fieldWeight in 1219, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.0390625 = fieldNorm(doc=1219)
        0.4 = coord(10/25)
    
  3. Lawrence, S.; Giles, C.L.: Inquirus, the NECI meta search engine (1998) 0.22
    0.22362775 = sum of:
      0.22362775 = product of:
        0.79867053 = sum of:
          0.05589774 = weight(abstract_txt:engines in 4605) [ClassicSimilarity], result of:
            0.05589774 = score(doc=4605,freq=1.0), product of:
              0.11250151 = queryWeight, product of:
                1.465655 = boost
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.014483116 = queryNorm
              0.4968621 = fieldWeight in 4605, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.038782272 = weight(abstract_txt:search in 4605) [ClassicSimilarity], result of:
            0.038782272 = score(doc=4605,freq=2.0), product of:
              0.08010718 = queryWeight, product of:
                1.5147256 = boost
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.014483116 = queryNorm
              0.4841298 = fieldWeight in 4605, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.08447322 = weight(abstract_txt:query in 4605) [ClassicSimilarity], result of:
            0.08447322 = score(doc=4605,freq=2.0), product of:
              0.13460524 = queryWeight, product of:
                1.9634923 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014483116 = queryNorm
              0.62756264 = fieldWeight in 4605, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.052749205 = weight(abstract_txt:number in 4605) [ClassicSimilarity], result of:
            0.052749205 = score(doc=4605,freq=1.0), product of:
              0.13636915 = queryWeight, product of:
                2.2820525 = boost
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.014483116 = queryNorm
              0.38681185 = fieldWeight in 4605, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.1259933 = idf(docFreq=1875, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.09886614 = weight(abstract_txt:ranking in 4605) [ClassicSimilarity], result of:
            0.09886614 = score(doc=4605,freq=1.0), product of:
              0.18834655 = queryWeight, product of:
                2.322614 = boost
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.014483116 = queryNorm
              0.5249161 = fieldWeight in 4605, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.22663057 = weight(abstract_txt:pages in 4605) [ClassicSimilarity], result of:
            0.22663057 = score(doc=4605,freq=3.0), product of:
              0.24988726 = queryWeight, product of:
                3.0891545 = boost
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.014483116 = queryNorm
              0.9069313 = fieldWeight in 4605, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
          0.24127136 = weight(abstract_txt:links in 4605) [ClassicSimilarity], result of:
            0.24127136 = score(doc=4605,freq=1.0), product of:
              0.49238357 = queryWeight, product of:
                6.5044503 = boost
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.014483116 = queryNorm
              0.49000692 = fieldWeight in 4605, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.09375 = fieldNorm(doc=4605)
        0.28 = coord(7/25)
    
  4. Thelwall, M.; Vaughan, L.: New versions of PageRank employing alternative Web document models (2004) 0.21
    0.21037577 = sum of:
      0.21037577 = product of:
        0.75134206 = sum of:
          0.028058078 = weight(abstract_txt:results in 1800) [ClassicSimilarity], result of:
            0.028058078 = score(doc=1800,freq=3.0), product of:
              0.07390123 = queryWeight, product of:
                1.4548695 = boost
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.014483116 = queryNorm
              0.37967 = fieldWeight in 1800, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.01828214 = weight(abstract_txt:search in 1800) [ClassicSimilarity], result of:
            0.01828214 = score(doc=1800,freq=1.0), product of:
              0.08010718 = queryWeight, product of:
                1.5147256 = boost
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.014483116 = queryNorm
              0.22822097 = fieldWeight in 1800, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.016698098 = weight(abstract_txt:these in 1800) [ClassicSimilarity], result of:
            0.016698098 = score(doc=1800,freq=1.0), product of:
              0.08299992 = queryWeight, product of:
                1.7803543 = boost
                3.2189133 = idf(docFreq=4646, maxDocs=42740)
                0.014483116 = queryNorm
              0.20118208 = fieldWeight in 1800, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.2189133 = idf(docFreq=4646, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.11416079 = weight(abstract_txt:ranking in 1800) [ClassicSimilarity], result of:
            0.11416079 = score(doc=1800,freq=3.0), product of:
              0.18834655 = queryWeight, product of:
                2.322614 = boost
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.014483116 = queryNorm
              0.60612094 = fieldWeight in 1800, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.19505255 = weight(abstract_txt:pages in 1800) [ClassicSimilarity], result of:
            0.19505255 = score(doc=1800,freq=5.0), product of:
              0.24988726 = queryWeight, product of:
                3.0891545 = boost
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.014483116 = queryNorm
              0.7805622 = fieldWeight in 1800, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.15161765 = weight(abstract_txt:page in 1800) [ClassicSimilarity], result of:
            0.15161765 = score(doc=1800,freq=2.0), product of:
              0.28671882 = queryWeight, product of:
                3.3089917 = boost
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.014483116 = queryNorm
              0.5288026 = fieldWeight in 1800, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
          0.22747281 = weight(abstract_txt:links in 1800) [ClassicSimilarity], result of:
            0.22747281 = score(doc=1800,freq=2.0), product of:
              0.49238357 = queryWeight, product of:
                6.5044503 = boost
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.014483116 = queryNorm
              0.46198294 = fieldWeight in 1800, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.0625 = fieldNorm(doc=1800)
        0.28 = coord(7/25)
    
  5. Negm, E.; AbdelRahman, S.; Bahgat, R.: PREFCA: a portal retrieval engine based on formal concept analysis (2017) 0.20
    0.20187818 = sum of:
      0.20187818 = product of:
        0.6308693 = sum of:
          0.012149505 = weight(abstract_txt:results in 5292) [ClassicSimilarity], result of:
            0.012149505 = score(doc=5292,freq=1.0), product of:
              0.07390123 = queryWeight, product of:
                1.4548695 = boost
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.014483116 = queryNorm
              0.16440193 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5072412 = idf(docFreq=3482, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.02794887 = weight(abstract_txt:engines in 5292) [ClassicSimilarity], result of:
            0.02794887 = score(doc=5292,freq=1.0), product of:
              0.11250151 = queryWeight, product of:
                1.465655 = boost
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.014483116 = queryNorm
              0.24843106 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.2998624 = idf(docFreq=579, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.033586435 = weight(abstract_txt:search in 5292) [ClassicSimilarity], result of:
            0.033586435 = score(doc=5292,freq=6.0), product of:
              0.08010718 = queryWeight, product of:
                1.5147256 = boost
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.014483116 = queryNorm
              0.4192687 = fieldWeight in 5292, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                3.6515355 = idf(docFreq=3014, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.029865792 = weight(abstract_txt:query in 5292) [ClassicSimilarity], result of:
            0.029865792 = score(doc=5292,freq=1.0), product of:
              0.13460524 = queryWeight, product of:
                1.9634923 = boost
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.014483116 = queryNorm
              0.22187689 = fieldWeight in 5292, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.7333736 = idf(docFreq=1021, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.06990892 = weight(abstract_txt:ranking in 5292) [ClassicSimilarity], result of:
            0.06990892 = score(doc=5292,freq=2.0), product of:
              0.18834655 = queryWeight, product of:
                2.322614 = boost
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.014483116 = queryNorm
              0.37117174 = fieldWeight in 5292, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5991054 = idf(docFreq=429, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.17309196 = weight(abstract_txt:pages in 5292) [ClassicSimilarity], result of:
            0.17309196 = score(doc=5292,freq=7.0), product of:
              0.24988726 = queryWeight, product of:
                3.0891545 = boost
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.014483116 = queryNorm
              0.69268024 = fieldWeight in 5292, product of:
                2.6457512 = tf(freq=7.0), with freq of:
                  7.0 = termFreq=7.0
                5.5852485 = idf(docFreq=435, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.113713235 = weight(abstract_txt:page in 5292) [ClassicSimilarity], result of:
            0.113713235 = score(doc=5292,freq=2.0), product of:
              0.28671882 = queryWeight, product of:
                3.3089917 = boost
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.014483116 = queryNorm
              0.39660192 = fieldWeight in 5292, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.982718 = idf(docFreq=292, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
          0.1706046 = weight(abstract_txt:links in 5292) [ClassicSimilarity], result of:
            0.1706046 = score(doc=5292,freq=2.0), product of:
              0.49238357 = queryWeight, product of:
                6.5044503 = boost
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.014483116 = queryNorm
              0.3464872 = fieldWeight in 5292, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.2267404 = idf(docFreq=623, maxDocs=42740)
                0.046875 = fieldNorm(doc=5292)
        0.32 = coord(8/25)