Search (4 results, page 1 of 1)

  • × author_ss:"Leydesdorff, L."
  • × author_ss:"Zhou, P."
  1. Leydesdorff, L.; Zhou, P.: Co-word analysis using the Chinese character set (2008) 0.00 
    0.0011730484 = product of:
  0.0023460968 = sum of:
    0.0023460968 = product of:
      0.0046921936 = sum of:
        0.0046921936 = weight(_text_:s in 1970) [ClassicSimilarity], result of:
          0.0046921936 = score(doc=1970,freq=2.0), product of:
            0.055801827 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.05132441 = queryNorm
            0.08408674 = fieldWeight in 1970, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1970)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.9, S.1528-1530
  2. Zhou, P.; Leydesdorff, L.: ¬A comparison between the China Scientific and Technical Papers and Citations Database and the Science Citation Index in terms of journal hierarchies and interjournal citation relations (2007) 0.00 
    0.00100547 = product of:
  0.00201094 = sum of:
    0.00201094 = product of:
      0.00402188 = sum of:
        0.00402188 = weight(_text_:s in 70) [ClassicSimilarity], result of:
          0.00402188 = score(doc=70,freq=2.0), product of:
            0.055801827 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.05132441 = queryNorm
            0.072074346 = fieldWeight in 70, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=70)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 58(2007) no.2, S.223-236
  3. Zhou, P.; Su, X.; Leydesdorff, L.: ¬A comparative study on communication structures of Chinese journals in the social sciences (2010) 0.00 
    0.00100547 = product of:
  0.00201094 = sum of:
    0.00201094 = product of:
      0.00402188 = sum of:
        0.00402188 = weight(_text_:s in 3580) [ClassicSimilarity], result of:
          0.00402188 = score(doc=3580,freq=2.0), product of:
            0.055801827 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.05132441 = queryNorm
            0.072074346 = fieldWeight in 3580, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046875 = fieldNorm(doc=3580)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 61(2010) no.7, S.1360-1376
  4. Leydesdorff, L.; Zhou, P.; Bornmann, L.: How can journal impact factors be normalized across fields of science? : An assessment in terms of percentile ranks and fractional counts (2013) 0.00 
    8.3789177E-4 = product of:
  0.0016757835 = sum of:
    0.0016757835 = product of:
      0.003351567 = sum of:
        0.003351567 = weight(_text_:s in 532) [ClassicSimilarity], result of:
          0.003351567 = score(doc=532,freq=2.0), product of:
            0.055801827 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.05132441 = queryNorm
            0.060061958 = fieldWeight in 532, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0390625 = fieldNorm(doc=532)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.1, S.96-107

Authors

Years