Search (4 results, page 1 of 1)

  • × theme_ss:"Informetrie"
  • × author_ss:"Vakkari, P."
  1. Vakkari, P.; Järvelin, K.; Chang, Y.-W.: ¬The association of disciplinary background with the evolution of topics and methods in Library and Information Science research 1995-2015 (2023) 0.02
    0.017106583 = product of:
      0.034213167 = sum of:
        0.034213167 = sum of:
          0.0030080476 = weight(_text_:s in 998) [ClassicSimilarity], result of:
            0.0030080476 = score(doc=998,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.060061958 = fieldWeight in 998, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0390625 = fieldNorm(doc=998)
          0.03120512 = weight(_text_:22 in 998) [ClassicSimilarity], result of:
            0.03120512 = score(doc=998,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.19345059 = fieldWeight in 998, 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=998)
      0.5 = coord(1/2)
    
    Date
    22. 6.2023 18:15:06
    Source
    Journal of the Association for Information Science and Technology. 74(2023) no.7, S.811-827
  2. Vakkari, P.: Perceived influence of the use of electronic information resources on scholarly work and publication productivity (2008) 0.00
    9.0241426E-4 = product of:
      0.0018048285 = sum of:
        0.0018048285 = product of:
          0.003609657 = sum of:
            0.003609657 = weight(_text_:s in 1380) [ClassicSimilarity], result of:
              0.003609657 = score(doc=1380,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.072074346 = fieldWeight in 1380, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1380)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.4, S.602-612
  3. Tuomaala, O.; Järvelin, K.; Vakkari, P.: Evolution of library and information science, 1965-2005 : content analysis of journal articles (2014) 0.00
    7.520119E-4 = product of:
      0.0015040238 = sum of:
        0.0015040238 = product of:
          0.0030080476 = sum of:
            0.0030080476 = weight(_text_:s in 1309) [ClassicSimilarity], result of:
              0.0030080476 = score(doc=1309,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.060061958 = fieldWeight in 1309, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1309)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.7, S.1446-1462
  4. Järvelin, K.; Vakkari, P.: LIS research across 50 years: content analysis of journal articles : offering an information-centric conception of memes (2022) 0.00
    7.520119E-4 = product of:
      0.0015040238 = sum of:
        0.0015040238 = product of:
          0.0030080476 = sum of:
            0.0030080476 = weight(_text_:s in 949) [ClassicSimilarity], result of:
              0.0030080476 = score(doc=949,freq=2.0), product of:
                0.05008241 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.046063907 = queryNorm
                0.060061958 = fieldWeight in 949, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=949)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of documentation. 78(2022) no.7, S.65-88