Search (2 results, page 1 of 1)

  • × author_ss:"Tijssen, R.J.W."
  • × theme_ss:"Informetrie"
  1. Tijssen, R.J.W.; Wijk, E. van: ¬The global science base of information and communication technologies : bibliometric analysis of ICT research papers (1998) 0.01 
    0.012365646 = product of:
  0.024731291 = sum of:
    0.024731291 = product of:
      0.049462583 = sum of:
        0.049462583 = weight(_text_:22 in 3691) [ClassicSimilarity], result of:
          0.049462583 = score(doc=3691,freq=2.0), product of:
            0.15980367 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045634337 = queryNorm
            0.30952093 = fieldWeight in 3691, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=3691)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Date
    22. 5.1999 19:26:54
  2. Waltman, L.; Calero-Medina, C.; Kosten, J.; Noyons, E.C.M.; Tijssen, R.J.W.; Eck, N.J. van; Leeuwen, T.N. van; Raan, A.F.J. van; Visser, M.S.; Wouters, P.: ¬The Leiden ranking 2011/2012 : data collection, indicators, and interpretation (2012) 0.01 
    0.00636322 = product of:
  0.01272644 = sum of:
    0.01272644 = product of:
      0.02545288 = sum of:
        0.02545288 = weight(_text_:j in 514) [ClassicSimilarity], result of:
          0.02545288 = score(doc=514,freq=2.0), product of:
            0.14500295 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.045634337 = queryNorm
            0.17553353 = fieldWeight in 514, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.0390625 = fieldNorm(doc=514)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Authors

Years