Search (2 results, page 1 of 1)

  • × author_ss:"Leydesdorff, L."
  • × theme_ss:"Citation indexing"
  • × year_i:[2010 TO 2020}
  1. Leydesdorff, L.; Opthof, T.: Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge : a new routine (2013) 0.02
    0.018752785 = product of:
      0.11251671 = sum of:
        0.056258354 = weight(_text_:web in 943) [ClassicSimilarity], result of:
          0.056258354 = score(doc=943,freq=10.0), product of:
            0.11629491 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.035634913 = queryNorm
            0.48375595 = fieldWeight in 943, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.046875 = fieldNorm(doc=943)
        0.056258354 = weight(_text_:web in 943) [ClassicSimilarity], result of:
          0.056258354 = score(doc=943,freq=10.0), product of:
            0.11629491 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.035634913 = queryNorm
            0.48375595 = fieldWeight in 943, product of:
              3.1622777 = tf(freq=10.0), with freq of:
                10.0 = termFreq=10.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.046875 = fieldNorm(doc=943)
      0.16666667 = coord(2/12)
    
    Abstract
    Citation analysis of documents retrieved from the Medline database (at the Web of Knowledge) has been possible only on a case-by-case basis. A technique is presented here for citation analysis in batch mode using both Medical Subject Headings (MeSH) at the Web of Knowledge and the Science Citation Index at the Web of Science (WoS). This freeware routine is applied to the case of "Brugada Syndrome," a specific disease and field of research (since 1992). The journals containing these publications, for example, are attributed to WoS categories other than "cardiac and cardiovascular systems", perhaps because of the possibility of genetic testing for this syndrome in the clinic. With this routine, all the instruments available for citation analysis can now be used on the basis of MeSH terms. Other options for crossing between Medline, WoS, and Scopus are also reviewed.
    Object
    Web of Knowledge
  2. Leydesdorff, L.; Salah, A.A.A.: Maps on the basis of the Arts & Humanities Citation Index : the journals Leonardo and Art Journal versus "digital humanities" as a topic (2010) 0.01
    0.0083865 = product of:
      0.050318997 = sum of:
        0.025159499 = weight(_text_:web in 3436) [ClassicSimilarity], result of:
          0.025159499 = score(doc=3436,freq=2.0), product of:
            0.11629491 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.035634913 = queryNorm
            0.21634221 = fieldWeight in 3436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.046875 = fieldNorm(doc=3436)
        0.025159499 = weight(_text_:web in 3436) [ClassicSimilarity], result of:
          0.025159499 = score(doc=3436,freq=2.0), product of:
            0.11629491 = queryWeight, product of:
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.035634913 = queryNorm
            0.21634221 = fieldWeight in 3436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2635105 = idf(docFreq=4597, maxDocs=44218)
              0.046875 = fieldNorm(doc=3436)
      0.16666667 = coord(2/12)
    
    Abstract
    The possibilities of using the Arts & Humanities Citation Index (A&HCI) for journal mapping have not been sufficiently recognized because of the absence of a Journal Citations Report (JCR) for this database. A quasi-JCR for the A&HCI ([2008]) was constructed from the data contained in the Web of Science and is used for the evaluation of two journals as examples: Leonardo and Art Journal. The maps on the basis of the aggregated journal-journal citations within this domain can be compared with maps including references to journals in the Science Citation Index and Social Science Citation Index. Art journals are cited by (social) science journals more than by other art journals, but these journals draw upon one another in terms of their own references. This cultural impact in terms of being cited is not found when documents with a topic such as digital humanities are analyzed. This community of practice functions more as an intellectual organizer than a journal.