Search (2 results, page 1 of 1)

  • × author_ss:"Rijsbergen, C.J. van"
  • × year_i:[1970 TO 1980}
  1. Rijsbergen, C.J. van: ¬A test for the separation of relevant and non-relevant documents in experimental retrieval collections (1973) 0.01 
    0.010873211 = product of:
  0.021746421 = sum of:
    0.021746421 = product of:
      0.043492842 = sum of:
        0.043492842 = weight(_text_:22 in 5002) [ClassicSimilarity], result of:
          0.043492842 = score(doc=5002,freq=2.0), product of:
            0.14051664 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.040126637 = 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
  2. Rijsbergen, C.J. van: Information retrieval (1979) 0.01 
    0.008318615 = product of:
  0.01663723 = sum of:
    0.01663723 = product of:
      0.03327446 = sum of:
        0.03327446 = weight(_text_:u in 856) [ClassicSimilarity], result of:
          0.03327446 = score(doc=856,freq=2.0), product of:
            0.13139243 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.040126637 = queryNorm
            0.25324488 = fieldWeight in 856, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.0546875 = fieldNorm(doc=856)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Theme
    Grundlagen u. Einführungen: Allgemeine Literatur

Types

Themes

Subjects

Classifications