Search (3 results, page 1 of 1)

  • × author_ss:"Ellis, D."
  • × language_ss:"e"
  • × year_i:[1980 TO 1990}
  1. Ellis, D.: ¬A behavioral approach to information system design (1989) 0.00 
    0.0023868226 = product of:
  0.0071604676 = sum of:
    0.0071604676 = product of:
      0.014320935 = sum of:
        0.014320935 = weight(_text_:a in 2706) [ClassicSimilarity], result of:
          0.014320935 = score(doc=2706,freq=4.0), product of:
            0.04968032 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.04308612 = queryNorm
            0.28826174 = fieldWeight in 2706, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.125 = fieldNorm(doc=2706)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Type
    a
  2. Ellis, D.: ¬A behavioral model for information retrieval system design (1989) 0.00 
    0.0023868226 = product of:
  0.0071604676 = sum of:
    0.0071604676 = product of:
      0.014320935 = sum of:
        0.014320935 = weight(_text_:a in 2707) [ClassicSimilarity], result of:
          0.014320935 = score(doc=2707,freq=4.0), product of:
            0.04968032 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.04308612 = queryNorm
            0.28826174 = fieldWeight in 2707, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.125 = fieldNorm(doc=2707)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Type
    a
  3. Ellis, D.: Theory and explanation in information retrieval research (1984) 0.00 
    0.0016877383 = product of:
  0.005063215 = sum of:
    0.005063215 = product of:
      0.01012643 = sum of:
        0.01012643 = weight(_text_:a in 5337) [ClassicSimilarity], result of:
          0.01012643 = score(doc=5337,freq=2.0), product of:
            0.04968032 = queryWeight, product of:
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.04308612 = queryNorm
            0.20383182 = fieldWeight in 5337, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.153047 = idf(docFreq=37942, maxDocs=44218)
              0.125 = fieldNorm(doc=5337)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Type
    a