Search (2 results, page 1 of 1)

  • × author_ss:"Zhang, Y."
  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.02
    0.01755883 = product of:
      0.03511766 = sum of:
        0.03511766 = sum of:
          0.005063508 = weight(_text_:e in 2742) [ClassicSimilarity], result of:
            0.005063508 = score(doc=2742,freq=2.0), product of:
              0.053140633 = queryWeight, product of:
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.036970742 = queryNorm
              0.09528506 = fieldWeight in 2742, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.046875 = fieldNorm(doc=2742)
          0.03005415 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
            0.03005415 = score(doc=2742,freq=2.0), product of:
              0.12946524 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.036970742 = queryNorm
              0.23214069 = fieldWeight in 2742, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=2742)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11
    Language
    e
  2. Zhang, Y.: ¬The effect of open access on citation impact : a comparison study based on Web citation analysis (2006) 0.00
    0.0010548977 = product of:
      0.0021097953 = sum of:
        0.0021097953 = product of:
          0.0042195907 = sum of:
            0.0042195907 = weight(_text_:e in 5071) [ClassicSimilarity], result of:
              0.0042195907 = score(doc=5071,freq=2.0), product of:
                0.053140633 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.036970742 = queryNorm
                0.07940422 = fieldWeight in 5071, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5071)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e