Search (4 results, page 1 of 1)

  • × author_ss:"Ortega, J.L."
  1. Ortega, J.L.; Aguillo, I.F.: Microsoft academic search and Google scholar citations : comparative analysis of author profiles (2014) 0.01
    0.007576 = product of:
      0.045456 = sum of:
        0.045456 = weight(_text_:suchmaschinen in 1284) [ClassicSimilarity], result of:
          0.045456 = score(doc=1284,freq=2.0), product of:
            0.15347718 = queryWeight, product of:
              4.4677734 = idf(docFreq=1378, maxDocs=44218)
              0.03435205 = queryNorm
            0.29617432 = fieldWeight in 1284, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.4677734 = idf(docFreq=1378, maxDocs=44218)
              0.046875 = fieldNorm(doc=1284)
      0.16666667 = coord(1/6)
    
    Theme
    Suchmaschinen
  2. Aguillo, I.F.; Granadino, B.; Ortega, J.L.; Prieto, J.A.: Scientific research activity and communication measured with cybermetrics indicators (2006) 0.00
    9.74098E-4 = product of:
      0.005844588 = sum of:
        0.005844588 = product of:
          0.02922294 = sum of:
            0.02922294 = weight(_text_:28 in 5898) [ClassicSimilarity], result of:
              0.02922294 = score(doc=5898,freq=2.0), product of:
                0.12305808 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03435205 = queryNorm
                0.23747274 = fieldWeight in 5898, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5898)
          0.2 = coord(1/5)
      0.16666667 = coord(1/6)
    
    Date
    18. 8.2006 12:28:13
  3. Ortega, J.L.; Aguillo, I.F.: Visualization of the Nordic academic web : link analysis using social network tools (2008) 0.00
    9.74098E-4 = product of:
      0.005844588 = sum of:
        0.005844588 = product of:
          0.02922294 = sum of:
            0.02922294 = weight(_text_:28 in 2114) [ClassicSimilarity], result of:
              0.02922294 = score(doc=2114,freq=2.0), product of:
                0.12305808 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03435205 = queryNorm
                0.23747274 = fieldWeight in 2114, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2114)
          0.2 = coord(1/5)
      0.16666667 = coord(1/6)
    
    Abstract
    The aim of this paper is to study the link relationships in the Nordic academic web space - comprised of 23 Finnish, 11 Danish and 28 Swedish academic web domains with the European one. Through social networks analysis we intend to detect sub-networks within the Nordic network, the position and role of the different university web domains and to understand the structural topology of this web space. Co-link analysis, with asymmetrical matrices and cosine measure, is used to identify thematic clusters. Results show that the Nordic network is a cohesive network, set up by three well-defined sub-networks and it rests on the Finnish and Swedish sub-networks. We conclude that the Danish network has less visibility than other Nordic countries. The Swedish one is the principal Nordic sub-network and the Finland network is a slightly isolated from Europe, with the exception of the University of Helsinki.
  4. Ortega, J.L.: ¬The presence of academic journals on Twitter and its relationship with dissemination (tweets) and research impact (citations) (2017) 0.00
    7.757048E-4 = product of:
      0.0046542287 = sum of:
        0.0046542287 = product of:
          0.023271143 = sum of:
            0.023271143 = weight(_text_:22 in 4410) [ClassicSimilarity], result of:
              0.023271143 = score(doc=4410,freq=2.0), product of:
                0.120295025 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03435205 = queryNorm
                0.19345059 = fieldWeight in 4410, 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=4410)
          0.2 = coord(1/5)
      0.16666667 = coord(1/6)
    
    Date
    20. 1.2015 18:30:22