Search (4 results, page 1 of 1)

  • × year_i:[1970 TO 1980}
  • × author_ss:"Lancaster, F.W."
  1. Lancaster, F.W.: Toward paperless information systems (1978) 0.03
    0.027226217 = product of:
      0.054452434 = sum of:
        0.054452434 = product of:
          0.10890487 = sum of:
            0.10890487 = weight(_text_:systems in 3356) [ClassicSimilarity], result of:
              0.10890487 = score(doc=3356,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.679082 = fieldWeight in 3356, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.15625 = fieldNorm(doc=3356)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  2. Lancaster, F.W.: Vocabulary control in information retrieval systems (1977) 0.02
    0.021780973 = product of:
      0.043561947 = sum of:
        0.043561947 = product of:
          0.08712389 = sum of:
            0.08712389 = weight(_text_:systems in 1774) [ClassicSimilarity], result of:
              0.08712389 = score(doc=1774,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.5432656 = fieldWeight in 1774, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.125 = fieldNorm(doc=1774)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  3. Lancaster, F.W.: Information retrieval systems : characteristics, testing and evaluation (1979) 0.02
    0.021780973 = product of:
      0.043561947 = sum of:
        0.043561947 = product of:
          0.08712389 = sum of:
            0.08712389 = weight(_text_:systems in 7270) [ClassicSimilarity], result of:
              0.08712389 = score(doc=7270,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.5432656 = fieldWeight in 7270, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.125 = fieldNorm(doc=7270)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  4. Lancaster, F.W.; Gillespie, C.J.: Design and evaluation of information systems (1970) 0.02
    0.021780973 = product of:
      0.043561947 = sum of:
        0.043561947 = product of:
          0.08712389 = sum of:
            0.08712389 = weight(_text_:systems in 243) [ClassicSimilarity], result of:
              0.08712389 = score(doc=243,freq=2.0), product of:
                0.16037072 = queryWeight, product of:
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.052184064 = queryNorm
                0.5432656 = fieldWeight in 243, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.0731742 = idf(docFreq=5561, maxDocs=44218)
                  0.125 = fieldNorm(doc=243)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    

Types