Search (7 results, page 1 of 1)

  • × author_ss:"Zhang, Y."
  • × theme_ss:"Informetrie"
  • × type_ss:"a"
  1. 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) 0.05
    0.051734746 = product of:
      0.10346949 = sum of:
        0.10346949 = product of:
          0.15520424 = sum of:
            0.1138456 = weight(_text_:y in 5963) [ClassicSimilarity], result of:
              0.1138456 = score(doc=5963,freq=8.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.53170013 = fieldWeight in 5963, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5963)
            0.041358635 = weight(_text_:c in 5963) [ClassicSimilarity], result of:
              0.041358635 = score(doc=5963,freq=4.0), product of:
                0.15347299 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.044492595 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  2. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.03
    0.034825385 = product of:
      0.06965077 = sum of:
        0.06965077 = product of:
          0.104476154 = sum of:
            0.06830736 = weight(_text_:y in 2742) [ClassicSimilarity], result of:
              0.06830736 = score(doc=2742,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.3190201 = fieldWeight in 2742, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2742)
            0.03616879 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
              0.03616879 = score(doc=2742,freq=2.0), product of:
                0.15580548 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044492595 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11
  3. 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) 0.03
    0.03318271 = product of:
      0.06636542 = sum of:
        0.06636542 = product of:
          0.09954813 = sum of:
            0.0569228 = weight(_text_:y in 2808) [ClassicSimilarity], result of:
              0.0569228 = score(doc=2808,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.26585007 = fieldWeight in 2808, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2808)
            0.04262533 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
              0.04262533 = score(doc=2808,freq=4.0), product of:
                0.15580548 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044492595 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    30. 1.1999 17:22:22
  4. Zhang, Y.; Wu, M.; Zhang, G.; Lu, J.: Stepping beyond your comfort zone : diffusion-based network analytics for knowledge trajectory recommendation (2023) 0.03
    0.029021155 = product of:
      0.05804231 = sum of:
        0.05804231 = product of:
          0.08706346 = sum of:
            0.0569228 = weight(_text_:y in 994) [ClassicSimilarity], result of:
              0.0569228 = score(doc=994,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.26585007 = fieldWeight in 994, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=994)
            0.030140663 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.030140663 = score(doc=994,freq=2.0), product of:
                0.15580548 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044492595 = 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)
          0.6666667 = coord(2/3)
      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) 0.03
    0.02872259 = product of:
      0.05744518 = sum of:
        0.05744518 = product of:
          0.08616777 = sum of:
            0.0569228 = weight(_text_:y in 237) [ClassicSimilarity], result of:
              0.0569228 = score(doc=237,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.26585007 = fieldWeight in 237, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=237)
            0.029244969 = weight(_text_:c in 237) [ClassicSimilarity], result of:
              0.029244969 = score(doc=237,freq=2.0), product of:
                0.15347299 = queryWeight, product of:
                  3.4494052 = idf(docFreq=3817, maxDocs=44218)
                  0.044492595 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  6. Zhang, Y.; Zhang, G.; Zhu, D.; Lu, J.: Scientific evolutionary pathways : identifying and visualizing relationships for scientific topics (2017) 0.01
    0.0094871335 = product of:
      0.018974267 = sum of:
        0.018974267 = product of:
          0.0569228 = sum of:
            0.0569228 = weight(_text_:y in 3758) [ClassicSimilarity], result of:
              0.0569228 = score(doc=3758,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.26585007 = fieldWeight in 3758, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3758)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  7. Zhang, Y.: ¬The effect of open access on citation impact : a comparison study based on Web citation analysis (2006) 0.01
    0.0094871335 = product of:
      0.018974267 = sum of:
        0.018974267 = product of:
          0.0569228 = sum of:
            0.0569228 = weight(_text_:y in 5071) [ClassicSimilarity], result of:
              0.0569228 = score(doc=5071,freq=2.0), product of:
                0.21411619 = queryWeight, product of:
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.044492595 = queryNorm
                0.26585007 = fieldWeight in 5071, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.8124003 = idf(docFreq=976, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5071)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)