Search (14 results, page 1 of 1)

  • × author_ss:"Costas, R."
  • × theme_ss:"Informetrie"
  • × type_ss:"a"
  1. Costas, R.; Rijcke, S. de; Marres, N.: "Heterogeneous couplings" : operationalizing network perspectives to study science-society interactions through social media metrics (2021) 0.02 
    0.017360142 = product of:
  0.04340035 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 215) [ClassicSimilarity], result of:
          0.004569368 = score(doc=215,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 215, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=215)
      0.5 = coord(1/2)
    0.041115668 = weight(_text_:n in 215) [ClassicSimilarity], result of:
      0.041115668 = score(doc=215,freq=2.0), product of:
        0.17261884 = queryWeight, product of:
          4.3116565 = idf(docFreq=1611, maxDocs=44218)
          0.040035386 = queryNorm
        0.23818761 = fieldWeight in 215, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          4.3116565 = idf(docFreq=1611, maxDocs=44218)
          0.0390625 = fieldNorm(doc=215)
  0.4 = coord(2/5)
    Language
    e
  2. 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 
    0.012947201 = product of:
  0.032368 = sum of:
    0.021519516 = sum of:
      0.01786402 = weight(_text_:j in 4051) [ClassicSimilarity], result of:
        0.01786402 = score(doc=4051,freq=2.0), product of:
          0.1272123 = queryWeight, product of:
            3.1774964 = idf(docFreq=5010, maxDocs=44218)
            0.040035386 = queryNorm
          0.14042683 = fieldWeight in 4051, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1774964 = idf(docFreq=5010, maxDocs=44218)
            0.03125 = fieldNorm(doc=4051)
      0.0036554944 = weight(_text_:e in 4051) [ClassicSimilarity], result of:
        0.0036554944 = score(doc=4051,freq=2.0), product of:
          0.05754566 = queryWeight, product of:
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.040035386 = queryNorm
          0.063523374 = fieldWeight in 4051, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.03125 = fieldNorm(doc=4051)
    0.010848484 = product of:
      0.021696968 = sum of:
        0.021696968 = weight(_text_:22 in 4051) [ClassicSimilarity], result of:
          0.021696968 = score(doc=4051,freq=2.0), product of:
            0.1401971 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.040035386 = 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)
  0.4 = coord(2/5)
    Date
    20. 1.2015 18:30:22
    Language
    e
  3. Fang, Z.; Dudek, J.; Costas, R.: Facing the volatility of tweets in altmetric research (2022) 0.01 
    0.0064558545 = product of:
  0.03227927 = sum of:
    0.03227927 = sum of:
      0.026796032 = weight(_text_:j in 605) [ClassicSimilarity], result of:
        0.026796032 = score(doc=605,freq=2.0), product of:
          0.1272123 = queryWeight, product of:
            3.1774964 = idf(docFreq=5010, maxDocs=44218)
            0.040035386 = queryNorm
          0.21064025 = fieldWeight in 605, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.1774964 = idf(docFreq=5010, maxDocs=44218)
            0.046875 = fieldNorm(doc=605)
      0.0054832413 = weight(_text_:e in 605) [ClassicSimilarity], result of:
        0.0054832413 = score(doc=605,freq=2.0), product of:
          0.05754566 = queryWeight, product of:
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.040035386 = queryNorm
          0.09528506 = fieldWeight in 605, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            1.43737 = idf(docFreq=28552, maxDocs=44218)
            0.046875 = fieldNorm(doc=605)
  0.2 = coord(1/5)
    Language
    e
  4. Costas, R.; Bordons, M.; Leeuwen, T.N. van; Raan, A.F.J. van: Scaling rules in the science system : Influence of field-specific citation characteristics on the impact of individual researchers (2009) 0.01 
    0.006338116 = product of:
  0.01584529 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 2759) [ClassicSimilarity], result of:
          0.004569368 = score(doc=2759,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 2759, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2759)
      0.5 = coord(1/2)
    0.013560605 = product of:
      0.02712121 = sum of:
        0.02712121 = weight(_text_:22 in 2759) [ClassicSimilarity], result of:
          0.02712121 = score(doc=2759,freq=2.0), product of:
            0.1401971 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.040035386 = queryNorm
            0.19345059 = fieldWeight in 2759, 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=2759)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Date
    22. 3.2009 19:02:48
    Language
    e
  5. Costas, R.; Zahedi, Z.; Wouters, P.: ¬The thematic orientation of publications mentioned on social media : large-scale disciplinary comparison of social media metrics with citations (2015) 0.01 
    0.006338116 = product of:
  0.01584529 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 2598) [ClassicSimilarity], result of:
          0.004569368 = score(doc=2598,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 2598, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2598)
      0.5 = coord(1/2)
    0.013560605 = product of:
      0.02712121 = sum of:
        0.02712121 = weight(_text_:22 in 2598) [ClassicSimilarity], result of:
          0.02712121 = score(doc=2598,freq=2.0), product of:
            0.1401971 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.040035386 = queryNorm
            0.19345059 = fieldWeight in 2598, 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=2598)
      0.5 = coord(1/2)
  0.4 = coord(2/5)
    Date
    20. 1.2015 18:30:22
    Language
    e
  6. Costas, R.; Leeuwen, T.N. van; Bordons, M.: ¬A bibliometric classificatory approach for the study and assessment of research performance at the individual level : the effects of age on productivity and impact (2010) 0.00 
    5.4832414E-4 = product of:
  0.0027416206 = sum of:
    0.0027416206 = product of:
      0.0054832413 = sum of:
        0.0054832413 = weight(_text_:e in 3700) [ClassicSimilarity], result of:
          0.0054832413 = score(doc=3700,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.09528506 = fieldWeight in 3700, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=3700)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  7. Waltman, L.; Costas, R.: F1000 Recommendations as a potential new data source for research evaluation : a comparison with citations (2014) 0.00 
    5.4832414E-4 = product of:
  0.0027416206 = sum of:
    0.0027416206 = product of:
      0.0054832413 = sum of:
        0.0054832413 = weight(_text_:e in 1212) [ClassicSimilarity], result of:
          0.0054832413 = score(doc=1212,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.09528506 = fieldWeight in 1212, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.046875 = fieldNorm(doc=1212)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  8. Costas, R.; Leeuwen, T.N. van; Raan, A.F.J. van: Is scientific literature subject to a 'Sell-By-Date'? : a general methodology to analyze the 'durability' of scientific documents (2010) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 3333) [ClassicSimilarity], result of:
          0.004569368 = score(doc=3333,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 3333, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3333)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  9. Costas, R.; Leeuwen, T.N. van: Approaching the "reward triangle" : general analysis of the presence of funding acknowledgments and "peer interactive communication" in scientific publications (2012) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 363) [ClassicSimilarity], result of:
          0.004569368 = score(doc=363,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 363, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=363)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  10. Costas, R.; Leeuwen, T.N. van; Bordons, M.: Referencing patterns of individual researchers : do top scientists rely on more extensive information sources? (2012) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 516) [ClassicSimilarity], result of:
          0.004569368 = score(doc=516,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 516, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=516)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  11. Costas, R.; Zahedi, Z.; Wouters, P.: Do "altmetrics" correlate with citations? : extensive comparison of altmetric indicators with citations from a multidisciplinary perspective (2015) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 2214) [ClassicSimilarity], result of:
          0.004569368 = score(doc=2214,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 2214, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2214)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  12. Schneider, J.W.; Costas, R.: Identifying potential "breakthrough" publications using refined citation analyses : three related explorative approaches (2017) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 3436) [ClassicSimilarity], result of:
          0.004569368 = score(doc=3436,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 3436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3436)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  13. Zahedi, Z.; Costas, R.; Wouters, P.: Mendeley readership as a filtering tool to identify highly cited publications (2017) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 3837) [ClassicSimilarity], result of:
          0.004569368 = score(doc=3837,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 3837, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3837)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e
  14. Fang, Z.; Costas, R.; Tian, W.; Wang, X.; Wouters, P.: How is science clicked on Twitter? : click metrics for Bitly short links to scientific publications (2021) 0.00 
    4.569368E-4 = product of:
  0.002284684 = sum of:
    0.002284684 = product of:
      0.004569368 = sum of:
        0.004569368 = weight(_text_:e in 265) [ClassicSimilarity], result of:
          0.004569368 = score(doc=265,freq=2.0), product of:
            0.05754566 = queryWeight, product of:
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.040035386 = queryNorm
            0.07940422 = fieldWeight in 265, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.43737 = idf(docFreq=28552, maxDocs=44218)
              0.0390625 = fieldNorm(doc=265)
      0.5 = coord(1/2)
  0.2 = coord(1/5)
    Language
    e

Authors

Years