Search (6 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  1. Rijsbergen, C.J. van: Information retrieval (1979) 0.01
    0.008293321 = product of:
      0.103666514 = sum of:
        0.0705295 = weight(_text_:einzelne in 856) [ClassicSimilarity], result of:
          0.0705295 = score(doc=856,freq=4.0), product of:
            0.1095598 = queryWeight, product of:
              5.885746 = idf(docFreq=333, maxDocs=44218)
              0.018614428 = queryNorm
            0.64375347 = fieldWeight in 856, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              5.885746 = idf(docFreq=333, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
        0.03313702 = product of:
          0.06627404 = sum of:
            0.06627404 = weight(_text_:allgemeines in 856) [ClassicSimilarity], result of:
              0.06627404 = score(doc=856,freq=4.0), product of:
                0.10620318 = queryWeight, product of:
                  5.705423 = idf(docFreq=399, maxDocs=44218)
                  0.018614428 = queryNorm
                0.62403065 = fieldWeight in 856, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  5.705423 = idf(docFreq=399, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=856)
          0.5 = coord(1/2)
      0.08 = coord(2/25)
    
    Classification
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
    RVK
    ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
    AN 95000 Allgemeines / Buch- und Bibliothekswesen, Informationswissenschaft / Informationswissenschaft / Informationspraxis / Bibliographische Erfassung, Suchpraxis
  2. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.00
    0.0016214045 = product of:
      0.020267557 = sum of:
        0.010179564 = product of:
          0.020359129 = sum of:
            0.020359129 = weight(_text_:29 in 5002) [ClassicSimilarity], result of:
              0.020359129 = score(doc=5002,freq=2.0), product of:
                0.06547974 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.018614428 = queryNorm
                0.31092256 = fieldWeight in 5002, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5002)
          0.5 = coord(1/2)
        0.010087992 = product of:
          0.020175984 = sum of:
            0.020175984 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
              0.020175984 = score(doc=5002,freq=2.0), product of:
                0.065184556 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.018614428 = 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)
      0.08 = coord(2/25)
    
    Date
    19. 3.1996 11:22:12
    Source
    Journal of documentation. 29(1973) no.3, S.251-257
  3. Dunlop, M.D.; Rijsbergen, C.J. van: Hypermedia and free text retrieval (1993) 0.00
    8.143651E-4 = product of:
      0.020359129 = sum of:
        0.020359129 = product of:
          0.040718257 = sum of:
            0.040718257 = weight(_text_:29 in 4709) [ClassicSimilarity], result of:
              0.040718257 = score(doc=4709,freq=2.0), product of:
                0.06547974 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.018614428 = queryNorm
                0.6218451 = fieldWeight in 4709, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.125 = fieldNorm(doc=4709)
          0.5 = coord(1/2)
      0.04 = coord(1/25)
    
    Source
    Information processing and management. 29(1993) no.3, S.287-298
  4. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.00
    7.0615945E-4 = product of:
      0.017653987 = sum of:
        0.017653987 = product of:
          0.035307974 = sum of:
            0.035307974 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.035307974 = score(doc=2134,freq=2.0), product of:
                0.065184556 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.018614428 = 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)
      0.04 = coord(1/25)
    
    Date
    30. 3.2001 13:32:22
  5. Rijsbergen, C.J. van: ¬A non-classical logic for information retrieval (1986) 0.00
    6.1077386E-4 = product of:
      0.015269347 = sum of:
        0.015269347 = product of:
          0.030538693 = sum of:
            0.030538693 = weight(_text_:29 in 1933) [ClassicSimilarity], result of:
              0.030538693 = score(doc=1933,freq=2.0), product of:
                0.06547974 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.018614428 = queryNorm
                0.46638384 = fieldWeight in 1933, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.09375 = fieldNorm(doc=1933)
          0.5 = coord(1/2)
      0.04 = coord(1/25)
    
    Source
    Computer journal. 29(1986), S.481-485
  6. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.00
    3.0263973E-4 = product of:
      0.007565994 = sum of:
        0.007565994 = product of:
          0.015131988 = sum of:
            0.015131988 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
              0.015131988 = score(doc=6967,freq=2.0), product of:
                0.065184556 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.018614428 = 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)
      0.04 = coord(1/25)
    
    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