Search (7 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  1. Rijsbergen, C.J. van: Retrieval effectiveness (1981) 0.02
    0.021065587 = product of:
      0.042131174 = sum of:
        0.042131174 = product of:
          0.08426235 = sum of:
            0.08426235 = weight(_text_:k in 3147) [ClassicSimilarity], result of:
              0.08426235 = score(doc=3147,freq=2.0), product of:
                0.13352646 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037404697 = queryNorm
                0.63105357 = fieldWeight in 3147, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.125 = fieldNorm(doc=3147)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
  2. Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983) 0.02
    0.01773737 = product of:
      0.03547474 = sum of:
        0.03547474 = product of:
          0.07094948 = sum of:
            0.07094948 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
              0.07094948 = score(doc=2134,freq=2.0), product of:
                0.13098487 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037404697 = 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 non-classical logic for information retrieval (1986) 0.02
    0.01579919 = product of:
      0.03159838 = sum of:
        0.03159838 = product of:
          0.06319676 = sum of:
            0.06319676 = weight(_text_:k in 1933) [ClassicSimilarity], result of:
              0.06319676 = score(doc=1933,freq=2.0), product of:
                0.13352646 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037404697 = queryNorm
                0.47329018 = fieldWeight in 1933, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, 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.
  4. Crestani, F.; Ruthven, I.; Sanderson, M.; Rijsbergen, C.J. van: ¬The troubles with using a logical model of IR on a large collection of documents : experimenting retrieval by logical imaging on TREC (1996) 0.01
    0.013165992 = product of:
      0.026331984 = sum of:
        0.026331984 = product of:
          0.052663967 = sum of:
            0.052663967 = weight(_text_:k in 7522) [ClassicSimilarity], result of:
              0.052663967 = score(doc=7522,freq=2.0), product of:
                0.13352646 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037404697 = queryNorm
                0.39440846 = fieldWeight in 7522, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.078125 = fieldNorm(doc=7522)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    The Fourth Text Retrieval Conference (TREC-4). Ed.: K. Harman
  5. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01
    0.010135639 = product of:
      0.020271279 = sum of:
        0.020271279 = product of:
          0.040542558 = sum of:
            0.040542558 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
              0.040542558 = score(doc=5002,freq=2.0), product of:
                0.13098487 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037404697 = 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
  6. Sparck Jones, K.; Rijsbergen, C.J. van: Progress in documentation : Information retrieval test collection (1976) 0.01
    0.009216195 = product of:
      0.01843239 = sum of:
        0.01843239 = product of:
          0.03686478 = sum of:
            0.03686478 = weight(_text_:k in 4161) [ClassicSimilarity], result of:
              0.03686478 = score(doc=4161,freq=2.0), product of:
                0.13352646 = queryWeight, product of:
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.037404697 = queryNorm
                0.27608594 = fieldWeight in 4161, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.569778 = idf(docFreq=3384, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4161)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  7. Crestani, F.; Rijsbergen, C.J. van: Information retrieval by imaging (1996) 0.01
    0.0076017296 = product of:
      0.015203459 = sum of:
        0.015203459 = product of:
          0.030406918 = sum of:
            0.030406918 = weight(_text_:22 in 6967) [ClassicSimilarity], result of:
              0.030406918 = score(doc=6967,freq=2.0), product of:
                0.13098487 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.037404697 = 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