Search (5 results, page 1 of 1)

  • × author_ss:"Lancaster, F.W."
  • × year_i:[1970 TO 1980}
  1. Lancaster, F.W.: Information retrieval systems : characteristics, testing and evaluation (1979) 0.01 
    0.011017936 = product of:
  0.07712555 = sum of:
    0.019431137 = weight(_text_:information in 7270) [ClassicSimilarity], result of:
      0.019431137 = score(doc=7270,freq=4.0), product of:
        0.044275433 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0252213 = queryNorm
        0.43886948 = fieldWeight in 7270, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=7270)
    0.057694416 = weight(_text_:retrieval in 7270) [ClassicSimilarity], result of:
      0.057694416 = score(doc=7270,freq=4.0), product of:
        0.076292284 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0252213 = queryNorm
        0.75622874 = fieldWeight in 7270, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=7270)
  0.14285715 = coord(2/14)
    Footnote
    1st ed.: 1968; 3rd ed. u.d.T.: Information retrieval today (gemeinsam mit A.J. Warner)
  2. Lancaster, F.W.; Fayen, E.G.: Information retrieval on-line (1973) 0.01 
    0.009738572 = product of:
  0.06817 = sum of:
    0.01717486 = weight(_text_:information in 2260) [ClassicSimilarity], result of:
      0.01717486 = score(doc=2260,freq=2.0), product of:
        0.044275433 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0252213 = queryNorm
        0.38790947 = fieldWeight in 2260, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.15625 = fieldNorm(doc=2260)
    0.050995145 = weight(_text_:retrieval in 2260) [ClassicSimilarity], result of:
      0.050995145 = score(doc=2260,freq=2.0), product of:
        0.076292284 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0252213 = queryNorm
        0.6684181 = fieldWeight in 2260, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.15625 = fieldNorm(doc=2260)
  0.14285715 = coord(2/14)
  3. Lancaster, F.W.: Vocabulary control in information retrieval systems (1977) 0.01 
    0.007790858 = product of:
  0.054536004 = sum of:
    0.013739889 = weight(_text_:information in 1774) [ClassicSimilarity], result of:
      0.013739889 = score(doc=1774,freq=2.0), product of:
        0.044275433 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0252213 = queryNorm
        0.3103276 = fieldWeight in 1774, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=1774)
    0.040796116 = weight(_text_:retrieval in 1774) [ClassicSimilarity], result of:
      0.040796116 = score(doc=1774,freq=2.0), product of:
        0.076292284 = queryWeight, product of:
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.0252213 = queryNorm
        0.5347345 = fieldWeight in 1774, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.024915 = idf(docFreq=5836, maxDocs=44218)
          0.125 = fieldNorm(doc=1774)
  0.14285715 = coord(2/14)
  4. Lancaster, F.W.; Gillespie, C.J.: Design and evaluation of information systems (1970) 0.00 
    0.0013879384 = product of:
  0.019431137 = sum of:
    0.019431137 = weight(_text_:information in 243) [ClassicSimilarity], result of:
      0.019431137 = score(doc=243,freq=4.0), product of:
        0.044275433 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0252213 = queryNorm
        0.43886948 = fieldWeight in 243, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.125 = fieldNorm(doc=243)
  0.071428575 = coord(1/14)
    Source
    Annual review of information science and technology. 5(1970), S.33-70
  5. Lancaster, F.W.: Toward paperless information systems (1978) 0.00 
    0.0012267758 = product of:
  0.01717486 = sum of:
    0.01717486 = weight(_text_:information in 3356) [ClassicSimilarity], result of:
      0.01717486 = score(doc=3356,freq=2.0), product of:
        0.044275433 = queryWeight, product of:
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.0252213 = queryNorm
        0.38790947 = fieldWeight in 3356, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.7554779 = idf(docFreq=20772, maxDocs=44218)
          0.15625 = fieldNorm(doc=3356)
  0.071428575 = coord(1/14)

Authors

Types