Search (4 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × type_ss:"a"
  1. Salton, G.; Rijsbergen, C.J. van; Maron, M.E.: Panel on key issues in information retrieval (1983) 0.05 
    0.0450307 = product of:
  0.0900614 = sum of:
    0.0900614 = product of:
      0.1801228 = sum of:
        0.1801228 = weight(_text_:m.e in 7410) [ClassicSimilarity], result of:
          0.1801228 = score(doc=7410,freq=4.0), product of:
            0.25355247 = queryWeight, product of:
              5.683172 = idf(docFreq=408, maxDocs=44218)
              0.044614602 = queryNorm
            0.7103965 = fieldWeight in 7410, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.683172 = idf(docFreq=408, maxDocs=44218)
              0.0625 = fieldNorm(doc=7410)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Abstract
    Contribution to an issue devoted to the 6th Annual International Conference of the Special Interest Group on Information Retrieval of the Association for Computing Machinery (USA) held at the National Library of Medicine, Bethesda, Maryland, from 6-8 June 83. The following papers were presented in session 12 which was a panel on key issues in information retrieval: SALTON, G.: Research problems in automatic information retrieval; RIJSBERGEN, C.J. van: Information retrieval: new directions, old solutions; MARON, M.E.: Open problems in information retrieval
  2. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02 
    0.021156318 = product of:
  0.042312637 = sum of:
    0.042312637 = product of:
      0.084625274 = sum of:
        0.084625274 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
          0.084625274 = score(doc=2134,freq=2.0), product of:
            0.15623273 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044614602 = 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)
  0.5 = coord(1/2)
    Date
    30. 3.2001 13:32:22
  3. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01 
    0.012089325 = product of:
  0.02417865 = sum of:
    0.02417865 = product of:
      0.0483573 = sum of:
        0.0483573 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.0483573 = score(doc=5002,freq=2.0), product of:
            0.15623273 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044614602 = 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. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01 
    0.009066993 = product of:
  0.018133987 = sum of:
    0.018133987 = product of:
      0.036267973 = sum of:
        0.036267973 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
          0.036267973 = score(doc=6967,freq=2.0), product of:
            0.15623273 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.044614602 = 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

Authors

Years

Themes