Search (74 results, page 2 of 4)

  • × language_ss:"e"
  • × theme_ss:"Informetrie"
  • × year_i:[2010 TO 2020}
  1. Yan, E.: Finding knowledge paths among scientific disciplines (2014) 0.01
    0.010868597 = product of:
      0.021737194 = sum of:
        0.021737194 = product of:
          0.043474387 = sum of:
            0.043474387 = weight(_text_:22 in 1534) [ClassicSimilarity], result of:
              0.043474387 = score(doc=1534,freq=4.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.27358043 = fieldWeight in 1534, 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=1534)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    26.10.2014 20:22:22
  2. Zhu, Q.; Kong, X.; Hong, S.; Li, J.; He, Z.: Global ontology research progress : a bibliometric analysis (2015) 0.01
    0.010868597 = product of:
      0.021737194 = sum of:
        0.021737194 = product of:
          0.043474387 = sum of:
            0.043474387 = weight(_text_:22 in 2590) [ClassicSimilarity], result of:
              0.043474387 = score(doc=2590,freq=4.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.27358043 = fieldWeight in 2590, 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=2590)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    20. 1.2015 18:30:22
    17. 9.2018 18:22:23
  3. Campanario, J.M.: Large increases and decreases in journal impact factors in only one year : the effect of journal self-citations (2011) 0.01
    0.010759362 = product of:
      0.021518724 = sum of:
        0.021518724 = product of:
          0.043037448 = sum of:
            0.043037448 = weight(_text_:22 in 4187) [ClassicSimilarity], result of:
              0.043037448 = score(doc=4187,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.2708308 = fieldWeight in 4187, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4187)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 12:53:00
  4. Ding, Y.: Applying weighted PageRank to author citation networks (2011) 0.01
    0.010759362 = product of:
      0.021518724 = sum of:
        0.021518724 = product of:
          0.043037448 = sum of:
            0.043037448 = weight(_text_:22 in 4188) [ClassicSimilarity], result of:
              0.043037448 = score(doc=4188,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.2708308 = fieldWeight in 4188, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4188)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 13:02:21
  5. Vieira, E.S.; Cabral, J.A.S.; Gomes, J.A.N.F.: Definition of a model based on bibliometric indicators for assessing applicants to academic positions (2014) 0.01
    0.010759362 = product of:
      0.021518724 = sum of:
        0.021518724 = product of:
          0.043037448 = sum of:
            0.043037448 = weight(_text_:22 in 1221) [ClassicSimilarity], result of:
              0.043037448 = score(doc=1221,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.2708308 = fieldWeight in 1221, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1221)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    18. 3.2014 18:22:21
  6. Onodera, N.; Iwasawa, M.; Midorikawa, N.; Yoshikane, F.; Amano, K.; Ootani, Y.; Kodama, T.; Kiyama, Y.; Tsunoda, H.; Yamazaki, S.: ¬A method for eliminating articles by homonymous authors from the large number of articles retrieved by author search (2011) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 4370) [ClassicSimilarity], result of:
              0.03890366 = score(doc=4370,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 4370, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4370)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Peng, T.-Q.; Zhu, J.J.H.: Where you publish matters most : a multilevel analysis of factors affecting citations of internet studies (2012) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 386) [ClassicSimilarity], result of:
              0.03890366 = score(doc=386,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 386, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=386)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  8. Ye, F.Y.; Leydesdorff, L.: ¬The "academic trace" of the performance matrix : a mathematical synthesis of the h-index and the integrated impact indicator (I3) (2014) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 1237) [ClassicSimilarity], result of:
              0.03890366 = score(doc=1237,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 1237, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1237)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The h-index provides us with 9 natural classes which can be written as a matrix of 3 vectors. The 3 vectors are: X = (X1, X2, X3) and indicates publication distribution in the h-core, the h-tail, and the uncited ones, respectively; Y = (Y1, Y2, Y3) denotes the citation distribution of the h-core, the h-tail and the so-called "excess" citations (above the h-threshold), respectively; and Z = (Z1, Z2, Z3) = (Y1-X1, Y2-X2, Y3-X3). The matrix V = (X,Y,Z)T constructs a measure of academic performance, in which the 9 numbers can all be provided with meanings in different dimensions. The "academic trace" tr(V) of this matrix follows naturally, and contributes a unique indicator for total academic achievements by summarizing and weighting the accumulation of publications and citations. This measure can also be used to combine the advantages of the h-index and the integrated impact indicator (I3) into a single number with a meaningful interpretation of the values. We illustrate the use of tr(V) for the cases of 2 journal sets, 2 universities, and ourselves as 2 individual authors.
  9. Li, R.; Chambers, T.; Ding, Y.; Zhang, G.; Meng, L.: Patent citation analysis : calculating science linkage based on citing motivation (2014) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 1257) [ClassicSimilarity], result of:
              0.03890366 = score(doc=1257,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 1257, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1257)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  10. Kenyon, T.: Defining and measuring research impact in the humanities, social sciences and creative arts in the digital age (2014) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 1389) [ClassicSimilarity], result of:
              0.03890366 = score(doc=1389,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 1389, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1389)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  11. McKeown, K.; Daume III, H.; Chaturvedi, S.; Paparrizos, J.; Thadani, K.; Barrio, P.; Biran, O.; Bothe, S.; Collins, M.; Fleischmann, K.R.; Gravano, L.; Jha, R.; King, B.; McInerney, K.; Moon, T.; Neelakantan, A.; O'Seaghdha, D.; Radev, D.; Templeton, C.; Teufel, S.: Predicting the impact of scientific concepts using full-text features (2016) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 3153) [ClassicSimilarity], result of:
              0.03890366 = score(doc=3153,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 3153, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3153)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  12. Mutz, R.; Wolbring, T.; Daniel, H.-D.: ¬The effect of the "very important paper" (VIP) designation in Angewandte Chemie International Edition on citation impact : a propensity score matching analysis (2017) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 3792) [ClassicSimilarity], result of:
              0.03890366 = score(doc=3792,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 3792, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3792)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  13. Farys, R.; Wolbring, T.: Matched control groups for modeling events in citation data : an illustration of nobel prize effects in citation networks (2017) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 3796) [ClassicSimilarity], result of:
              0.03890366 = score(doc=3796,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 3796, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3796)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  14. Shuai, X.; Rollins, J.; Moulinier, I.; Custis, T.; Edmunds, M.; Schilder, F.: ¬A multidimensional investigation of the effects of publication retraction on scholarly impact (2017) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 3798) [ClassicSimilarity], result of:
              0.03890366 = score(doc=3798,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 3798, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3798)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  15. Franssen, T.; Wouters, P.: Science and its significant other : representing the humanities in bibliometric scholarship (2019) 0.01
    0.009725915 = product of:
      0.01945183 = sum of:
        0.01945183 = product of:
          0.03890366 = sum of:
            0.03890366 = weight(_text_:t in 5409) [ClassicSimilarity], result of:
              0.03890366 = score(doc=5409,freq=2.0), product of:
                0.17876579 = queryWeight, product of:
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.04537884 = queryNorm
                0.21762364 = fieldWeight in 5409, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.9394085 = idf(docFreq=2338, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5409)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  16. Ajiferuke, I.; Lu, K.; Wolfram, D.: ¬A comparison of citer and citation-based measure outcomes for multiple disciplines (2010) 0.01
    0.00922231 = product of:
      0.01844462 = sum of:
        0.01844462 = product of:
          0.03688924 = sum of:
            0.03688924 = weight(_text_:22 in 4000) [ClassicSimilarity], result of:
              0.03688924 = score(doc=4000,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.23214069 = fieldWeight in 4000, 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=4000)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    28. 9.2010 12:54:22
  17. Albarrán, P.; Ruiz-Castillo, J.: References made and citations received by scientific articles (2011) 0.01
    0.00922231 = product of:
      0.01844462 = sum of:
        0.01844462 = product of:
          0.03688924 = sum of:
            0.03688924 = weight(_text_:22 in 4185) [ClassicSimilarity], result of:
              0.03688924 = score(doc=4185,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.23214069 = fieldWeight in 4185, 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=4185)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    This article studies massive evidence about references made and citations received after a 5-year citation window by 3.7 million articles published in 1998 to 2002 in 22 scientific fields. We find that the distributions of references made and citations received share a number of basic features across sciences. Reference distributions are rather skewed to the right while citation distributions are even more highly skewed: The mean is about 20 percentage points to the right of the median, and articles with a remarkable or an outstanding number of citations represent about 9% of the total. Moreover, the existence of a power law representing the upper tail of citation distributions cannot be rejected in 17 fields whose articles represent 74.7% of the total. Contrary to the evidence in other contexts, the value of the scale parameter is above 3.5 in 13 of the 17 cases. Finally, power laws are typically small, but capture a considerable proportion of the total citations received.
  18. D'Angelo, C.A.; Giuffrida, C.; Abramo, G.: ¬A heuristic approach to author name disambiguation in bibliometrics databases for large-scale research assessments (2011) 0.01
    0.00922231 = product of:
      0.01844462 = sum of:
        0.01844462 = product of:
          0.03688924 = sum of:
            0.03688924 = weight(_text_:22 in 4190) [ClassicSimilarity], result of:
              0.03688924 = score(doc=4190,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.23214069 = fieldWeight in 4190, 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=4190)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 13:06:52
  19. Hicks, D.; Wang, J.: Coverage and overlap of the new social sciences and humanities journal lists (2011) 0.01
    0.00922231 = product of:
      0.01844462 = sum of:
        0.01844462 = product of:
          0.03688924 = sum of:
            0.03688924 = weight(_text_:22 in 4192) [ClassicSimilarity], result of:
              0.03688924 = score(doc=4192,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.23214069 = fieldWeight in 4192, 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=4192)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2011 13:21:28
  20. Frandsen, T.F.; Nicolaisen, J.: ¬The ripple effect : citation chain reactions of a nobel prize (2013) 0.01
    0.00922231 = product of:
      0.01844462 = sum of:
        0.01844462 = product of:
          0.03688924 = sum of:
            0.03688924 = weight(_text_:22 in 654) [ClassicSimilarity], result of:
              0.03688924 = score(doc=654,freq=2.0), product of:
                0.15890898 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04537884 = queryNorm
                0.23214069 = fieldWeight in 654, 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=654)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2013 16:21:09

Types

  • a 71
  • m 2
  • el 1
  • s 1
  • x 1
  • More… Less…