Search (5 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × language_ss:"e"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.08
    0.08106862 = product of:
      0.16213724 = sum of:
        0.16213724 = sum of:
          0.07563405 = weight(_text_:u in 2134) [ClassicSimilarity], result of:
            0.07563405 = score(doc=2134,freq=2.0), product of:
              0.14932987 = queryWeight, product of:
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.045604642 = queryNorm
              0.50648975 = fieldWeight in 2134, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.2744443 = idf(docFreq=4547, maxDocs=44218)
                0.109375 = fieldNorm(doc=2134)
          0.08650319 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
            0.08650319 = score(doc=2134,freq=2.0), product of:
              0.1596997 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045604642 = queryNorm
              0.5416616 = fieldWeight in 2134, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.109375 = fieldNorm(doc=2134)
      0.5 = coord(1/2)
    
    Date
    30. 3.2001 13:32:22
    Theme
    Semantisches Umfeld in Indexierung u. Retrieval
  2. Rijsbergen, C.J. van: ¬A non-classical logic for information retrieval (1986) 0.02
    0.016207296 = product of:
      0.032414593 = sum of:
        0.032414593 = product of:
          0.064829186 = sum of:
            0.064829186 = weight(_text_:u in 1933) [ClassicSimilarity], result of:
              0.064829186 = score(doc=1933,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.43413407 = fieldWeight in 1933, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1933)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Wiederabgedruckt in: Readings in information retrieval. Ed.: K. Sparck Jones u. P. Willett. San Francisco: Morgan Kaufmann. 1997. S.268-272.
  3. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01
    0.012357599 = product of:
      0.024715198 = sum of:
        0.024715198 = product of:
          0.049430396 = sum of:
            0.049430396 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
              0.049430396 = score(doc=5002,freq=2.0), product of:
                0.1596997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045604642 = queryNorm
                0.30952093 = fieldWeight in 5002, 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=5002)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    19. 3.1996 11:22:12
  4. Rijsbergen, C.J. van: Information retrieval (1979) 0.01
    0.009454256 = product of:
      0.018908512 = sum of:
        0.018908512 = product of:
          0.037817024 = sum of:
            0.037817024 = weight(_text_:u in 856) [ClassicSimilarity], result of:
              0.037817024 = score(doc=856,freq=2.0), product of:
                0.14932987 = queryWeight, product of:
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.045604642 = queryNorm
                0.25324488 = fieldWeight in 856, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2744443 = idf(docFreq=4547, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=856)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur
  5. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01
    0.009268199 = product of:
      0.018536398 = sum of:
        0.018536398 = product of:
          0.037072796 = sum of:
            0.037072796 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
              0.037072796 = score(doc=6967,freq=2.0), product of:
                0.1596997 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045604642 = queryNorm
                0.23214069 = fieldWeight in 6967, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=6967)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval: new systems and current research. Proceedings of the 16th Research Colloquium of the British Computer Society Information Retrieval Specialist Group, Drymen, Scotland, 22-23 Mar 94. Ed.: R. Leon