Search (5 results, page 1 of 1)

  • × author_ss:"Zhang, Y."
  • × theme_ss:"Informetrie"
  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
    0.008964025 = product of:
      0.01792805 = sum of:
        0.01792805 = product of:
          0.0358561 = sum of:
            0.0358561 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
              0.0358561 = score(doc=2808,freq=4.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = 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. Lu, C.; Zhang, Y.; Ahn, Y.-Y.; Ding, Y.; Zhang, C.; Ma, D.: Co-contributorship network and division of labor in individual scientific collaborations (2020) 0.01
    0.008697641 = product of:
      0.017395282 = sum of:
        0.017395282 = product of:
          0.034790564 = sum of:
            0.034790564 = weight(_text_:c in 5963) [ClassicSimilarity], result of:
              0.034790564 = score(doc=5963,freq=4.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.2694848 = fieldWeight in 5963, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5963)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.01
    0.0076062274 = product of:
      0.015212455 = sum of:
        0.015212455 = product of:
          0.03042491 = sum of:
            0.03042491 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
              0.03042491 = score(doc=2742,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = 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
  4. Zhang, Y.; Wu, M.; Zhang, G.; Lu, J.: Stepping beyond your comfort zone : diffusion-based network analytics for knowledge trajectory recommendation (2023) 0.01
    0.0063385232 = product of:
      0.0126770465 = sum of:
        0.0126770465 = product of:
          0.025354093 = sum of:
            0.025354093 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.025354093 = score(doc=994,freq=2.0), product of:
                0.13106237 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037426826 = queryNorm
                0.19345059 = fieldWeight in 994, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=994)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 6.2023 18:07:12
  5. Zhang, Y.; Zhang, C.: Enhancing keyphrase extraction from microblogs using human reading time (2021) 0.01
    0.0061501605 = product of:
      0.012300321 = sum of:
        0.012300321 = product of:
          0.024600642 = sum of:
            0.024600642 = weight(_text_:c in 237) [ClassicSimilarity], result of:
              0.024600642 = score(doc=237,freq=2.0), product of:
                0.1291003 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.037426826 = queryNorm
                0.1905545 = fieldWeight in 237, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=237)
          0.5 = coord(1/2)
      0.5 = coord(1/2)