Search (3 results, page 1 of 1)

  • × author_ss:"Costas, R."
  • × theme_ss:"Elektronisches Publizieren"
  1. Costas, R.; Perianes-Rodríguez, A.; Ruiz-Castillo, J.: On the quest for currencies of science : field "exchange rates" for citations and Mendeley readership (2017) 0.01
    0.01026376 = product of:
      0.02052752 = sum of:
        0.006866273 = weight(_text_:information in 4051) [ClassicSimilarity], result of:
          0.006866273 = score(doc=4051,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.0775819 = fieldWeight in 4051, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.03125 = fieldNorm(doc=4051)
        0.013661247 = product of:
          0.027322493 = sum of:
            0.027322493 = weight(_text_:22 in 4051) [ClassicSimilarity], result of:
              0.027322493 = score(doc=4051,freq=2.0), product of:
                0.17654699 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050415643 = queryNorm
                0.15476047 = fieldWeight in 4051, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4051)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Date
    20. 1.2015 18:30:22
    Source
    Aslib journal of information management. 69(2017) no.5, S.557-575
  2. Zahedi, Z.; Costas, R.; Wouters, P.: Mendeley readership as a filtering tool to identify highly cited publications (2017) 0.00
    0.0021457102 = product of:
      0.008582841 = sum of:
        0.008582841 = weight(_text_:information in 3837) [ClassicSimilarity], result of:
          0.008582841 = score(doc=3837,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.09697737 = fieldWeight in 3837, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3837)
      0.25 = coord(1/4)
    
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.10, S.2511-2521
  3. Fang, Z.; Dudek, J.; Costas, R.: ¬The stability of Twitter metrics : a study on unavailable Twitter mentions of scientific publications (2020) 0.00
    0.0021457102 = product of:
      0.008582841 = sum of:
        0.008582841 = weight(_text_:information in 35) [ClassicSimilarity], result of:
          0.008582841 = score(doc=35,freq=2.0), product of:
            0.08850355 = queryWeight, product of:
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.050415643 = queryNorm
            0.09697737 = fieldWeight in 35, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.7554779 = idf(docFreq=20772, maxDocs=44218)
              0.0390625 = fieldNorm(doc=35)
      0.25 = coord(1/4)
    
    Source
    Journal of the Association for Information Science and Technology. 71(2020) no.12, S.1455-1469