Search (3 results, page 1 of 1)

  • × author_ss:"Zhang, Y."
  • × theme_ss:"Internet"
  1. Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998) 0.01
    0.010974493 = product of:
      0.021948986 = sum of:
        0.021948986 = product of:
          0.04389797 = sum of:
            0.04389797 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
              0.04389797 = score(doc=2808,freq=4.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = queryNorm
                0.27358043 = fieldWeight in 2808, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2808)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 1.1999 17:22:22
  2. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.01
    0.009312166 = product of:
      0.018624332 = sum of:
        0.018624332 = product of:
          0.037248664 = sum of:
            0.037248664 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
              0.037248664 = score(doc=2742,freq=2.0), product of:
                0.16045728 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045820985 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11
  3. Zhang, M.; Zhang, Y.: Professional organizations in Twittersphere : an empirical study of U.S. library and information science professional organizations-related Tweets (2020) 0.01
    0.005486114 = product of:
      0.010972228 = sum of:
        0.010972228 = product of:
          0.021944456 = sum of:
            0.021944456 = weight(_text_:m in 5775) [ClassicSimilarity], result of:
              0.021944456 = score(doc=5775,freq=2.0), product of:
                0.114023164 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.045820985 = queryNorm
                0.19245613 = fieldWeight in 5775, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5775)
          0.5 = coord(1/2)
      0.5 = coord(1/2)