Search (3 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × theme_ss:"Retrievalalgorithmen"
  • × type_ss:"a"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.21
    0.20504957 = product of:
      0.41009915 = sum of:
        0.41009915 = sum of:
          0.32677332 = weight(_text_:c.j in 2134) [ClassicSimilarity], result of:
            0.32677332 = score(doc=2134,freq=2.0), product of:
              0.30463868 = queryWeight, product of:
                6.9347134 = idf(docFreq=116, maxDocs=44218)
                0.04392953 = queryNorm
              1.0726587 = fieldWeight in 2134, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                6.9347134 = idf(docFreq=116, maxDocs=44218)
                0.109375 = fieldNorm(doc=2134)
          0.08332582 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
            0.08332582 = score(doc=2134,freq=2.0), product of:
              0.15383372 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.04392953 = 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
  2. Rijsbergen, C.J. van: ¬A fast hierarchic clustering algorithm (1970) 0.09
    0.09336381 = product of:
      0.18672761 = sum of:
        0.18672761 = product of:
          0.37345523 = sum of:
            0.37345523 = weight(_text_:c.j in 3300) [ClassicSimilarity], result of:
              0.37345523 = score(doc=3300,freq=2.0), product of:
                0.30463868 = queryWeight, product of:
                  6.9347134 = idf(docFreq=116, maxDocs=44218)
                  0.04392953 = queryNorm
                1.2258956 = fieldWeight in 3300, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.9347134 = idf(docFreq=116, maxDocs=44218)
                  0.125 = fieldNorm(doc=3300)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Sembok, T.M.T.; Rijsbergen, C.J. van: IMAGING: a relevant feedback retrieval with nearest neighbour clusters (1994) 0.05
    0.046681903 = product of:
      0.09336381 = sum of:
        0.09336381 = product of:
          0.18672761 = sum of:
            0.18672761 = weight(_text_:c.j in 1071) [ClassicSimilarity], result of:
              0.18672761 = score(doc=1071,freq=2.0), product of:
                0.30463868 = queryWeight, product of:
                  6.9347134 = idf(docFreq=116, maxDocs=44218)
                  0.04392953 = queryNorm
                0.6129478 = fieldWeight in 1071, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.9347134 = idf(docFreq=116, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1071)
          0.5 = coord(1/2)
      0.5 = coord(1/2)