Search (3 results, page 1 of 1)

  • × author_ss:"Lancaster, F.W."
  • × year_i:[1970 TO 1980}
  1. Lancaster, F.W.; Fayen, E.G.: Information retrieval on-line (1973) 0.01 
    0.010340715 = product of:
  0.02068143 = sum of:
    0.02068143 = product of:
      0.062044285 = sum of:
        0.062044285 = weight(_text_:m in 2260) [ClassicSimilarity], result of:
          0.062044285 = score(doc=2260,freq=2.0), product of:
            0.11283351 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.04534291 = queryNorm
            0.54987466 = fieldWeight in 2260, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.15625 = fieldNorm(doc=2260)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Type
    m
  2. Lancaster, F.W.: Toward paperless information systems (1978) 0.01 
    0.010340715 = product of:
  0.02068143 = sum of:
    0.02068143 = product of:
      0.062044285 = sum of:
        0.062044285 = weight(_text_:m in 3356) [ClassicSimilarity], result of:
          0.062044285 = score(doc=3356,freq=2.0), product of:
            0.11283351 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.04534291 = queryNorm
            0.54987466 = fieldWeight in 3356, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.15625 = fieldNorm(doc=3356)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Type
    m
  3. Lancaster, F.W.: Information retrieval systems : characteristics, testing and evaluation (1979) 0.01 
    0.0082725715 = product of:
  0.016545143 = sum of:
    0.016545143 = product of:
      0.04963543 = sum of:
        0.04963543 = weight(_text_:m in 7270) [ClassicSimilarity], result of:
          0.04963543 = score(doc=7270,freq=2.0), product of:
            0.11283351 = queryWeight, product of:
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.04534291 = queryNorm
            0.4398997 = fieldWeight in 7270, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.4884486 = idf(docFreq=9980, maxDocs=44218)
              0.125 = fieldNorm(doc=7270)
      0.33333334 = coord(1/3)
  0.5 = coord(1/2)
    Type
    m