Search (4 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  1. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02
    0.019595439 = product of:
      0.09797719 = sum of:
        0.09797719 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.09797719 = score(doc=2134,freq=2.0), product of:
            0.18088265 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051653754 = 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)
      0.2 = coord(1/5)
    
    Date
    30. 3.2001 13:32:22
  2. Rijsbergen, C.J. van: Information retrieval (1979) 0.02
    0.019235056 = product of:
      0.096175276 = sum of:
        0.096175276 = weight(_text_:cd in 856) [ClassicSimilarity], result of:
          0.096175276 = score(doc=856,freq=4.0), product of:
            0.21311972 = queryWeight, product of:
              4.125929 = idf(docFreq=1940, maxDocs=44218)
              0.051653754 = queryNorm
            0.45127347 = fieldWeight in 856, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.125929 = idf(docFreq=1940, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
      0.2 = coord(1/5)
    
    Footnote
    Text des Buches auch auf der Beilage CD von: Belew, R.K.: Finding out about: a cognitive perspective on search engine technology and the WWW. Cambridge: Cambridge University Press 2001. XXVII, 356 S. + 1 CD-ROM. ISBN 0-521-63028-2. [Sign.: 63 TWD 113]
  3. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01
    0.011197394 = product of:
      0.055986967 = sum of:
        0.055986967 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.055986967 = score(doc=5002,freq=2.0), product of:
            0.18088265 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051653754 = 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)
      0.2 = coord(1/5)
    
    Date
    19. 3.1996 11:22:12
  4. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01
    0.008398045 = product of:
      0.041990224 = sum of:
        0.041990224 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
          0.041990224 = score(doc=6967,freq=2.0), product of:
            0.18088265 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.051653754 = 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)
      0.2 = coord(1/5)
    
    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