Search (4 results, page 1 of 1)

  • × author_ss:"Rotolo, D."
  • × theme_ss:"Informetrie"
  1. Rotolo, D.; Leydesdorff, L.: Matching Medline/PubMed data with Web of Science: A routine in R language (2015) 0.01
    0.009361665 = sum of:
      0.0066981805 = product of:
        0.053585444 = sum of:
          0.053585444 = weight(_text_:authors in 2224) [ClassicSimilarity], result of:
            0.053585444 = score(doc=2224,freq=2.0), product of:
              0.17731223 = queryWeight, product of:
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.038894374 = queryNorm
              0.30220953 = fieldWeight in 2224, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                4.558814 = idf(docFreq=1258, maxDocs=44218)
                0.046875 = fieldNorm(doc=2224)
        0.125 = coord(1/8)
      0.0026634843 = product of:
        0.0053269686 = sum of:
          0.0053269686 = weight(_text_:e in 2224) [ClassicSimilarity], result of:
            0.0053269686 = score(doc=2224,freq=2.0), product of:
              0.055905603 = queryWeight, product of:
                1.43737 = idf(docFreq=28552, maxDocs=44218)
                0.038894374 = queryNorm
              0.09528506 = fieldWeight in 2224, 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=2224)
        0.5 = coord(1/2)
    
    Abstract
    We present a novel routine, namely medlineR, based on the R language, that allows the user to match data from Medline/PubMed with records indexed in the ISI Web of Science (WoS) database. The matching allows exploiting the rich and controlled vocabulary of medical subject headings (MeSH) of Medline/PubMed with additional fields of WoS. The integration provides data (e.g., citation data, list of cited reference, list of the addresses of authors' host organizations, WoS subject categories) to perform a variety of scientometric analyses. This brief communication describes medlineR, the method on which it relies, and the steps the user should follow to perform the matching across the two databases. To demonstrate the differences from Leydesdorff and Opthof (Journal of the American Society for Information Science and Technology, 64(5), 1076-1080), we conclude this artcle by testing the routine on the MeSH category "Burgada syndrome."
    Language
    e
  2. Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012) 0.00
    0.0013317422 = product of:
      0.0026634843 = sum of:
        0.0026634843 = product of:
          0.0053269686 = sum of:
            0.0053269686 = weight(_text_:e in 494) [ClassicSimilarity], result of:
              0.0053269686 = score(doc=494,freq=2.0), product of:
                0.055905603 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.038894374 = queryNorm
                0.09528506 = fieldWeight in 494, 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=494)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  3. Leydesdorff, L.; Heimeriks, G.; Rotolo, D.: Journal portfolio analysis for countries, cities, and organizations : maps and comparisons (2016) 0.00
    0.0013317422 = product of:
      0.0026634843 = sum of:
        0.0026634843 = product of:
          0.0053269686 = sum of:
            0.0053269686 = weight(_text_:e in 2781) [ClassicSimilarity], result of:
              0.0053269686 = score(doc=2781,freq=2.0), product of:
                0.055905603 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.038894374 = queryNorm
                0.09528506 = fieldWeight in 2781, 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=2781)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e
  4. Rotolo, D.; Rafols, I.; Hopkins, M.M.; Leydesdorff, L.: Strategic intelligence on emerging technologies : scientometric overlay mapping (2017) 0.00
    0.0013317422 = product of:
      0.0026634843 = sum of:
        0.0026634843 = product of:
          0.0053269686 = sum of:
            0.0053269686 = weight(_text_:e in 3322) [ClassicSimilarity], result of:
              0.0053269686 = score(doc=3322,freq=2.0), product of:
                0.055905603 = queryWeight, product of:
                  1.43737 = idf(docFreq=28552, maxDocs=44218)
                  0.038894374 = queryNorm
                0.09528506 = fieldWeight in 3322, 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=3322)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Language
    e