Search (5 results, page 1 of 1)

  • × author_ss:"Derr, R.L."
  • × year_i:[1980 TO 1990}
  1. Derr, R.L.: ¬The concept of information in ordinary discourse (1985) 0.00 
    0.002406438 = product of:
  0.004812876 = sum of:
    0.004812876 = product of:
      0.009625752 = sum of:
        0.009625752 = weight(_text_:s in 3297) [ClassicSimilarity], result of:
          0.009625752 = score(doc=3297,freq=2.0), product of:
            0.05008241 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046063907 = queryNorm
            0.19219826 = fieldWeight in 3297, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.125 = fieldNorm(doc=3297)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 21(1985) no.6, S.489-500
  2. Derr, R.L.: ¬A classification of questions in information retrieval by conceptual presupposition (1982) 0.00 
    0.0015040238 = product of:
  0.0030080476 = sum of:
    0.0030080476 = product of:
      0.006016095 = sum of:
        0.006016095 = weight(_text_:s in 3494) [ClassicSimilarity], result of:
          0.006016095 = score(doc=3494,freq=2.0), product of:
            0.05008241 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046063907 = queryNorm
            0.120123915 = fieldWeight in 3494, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=3494)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Pages
    S.69-71
  3. Derr, R.L.: Questions: definitions, structure, and classification (1985) 0.00 
    0.001203219 = product of:
  0.002406438 = sum of:
    0.002406438 = product of:
      0.004812876 = sum of:
        0.004812876 = weight(_text_:s in 3199) [ClassicSimilarity], result of:
          0.004812876 = score(doc=3199,freq=2.0), product of:
            0.05008241 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046063907 = queryNorm
            0.09609913 = fieldWeight in 3199, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=3199)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    RQ. 24(1985), S.186-190
  4. Derr, R.L.: Information seeking expressions of users (1984) 0.00 
    0.001203219 = product of:
  0.002406438 = sum of:
    0.002406438 = product of:
      0.004812876 = sum of:
        0.004812876 = weight(_text_:s in 3376) [ClassicSimilarity], result of:
          0.004812876 = score(doc=3376,freq=2.0), product of:
            0.05008241 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046063907 = queryNorm
            0.09609913 = fieldWeight in 3376, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=3376)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science. 35(1984) no.2, S.124-128
  5. Derr, R.L.: ¬A conceptual analysis of information need (1983) 0.00 
    0.001203219 = product of:
  0.002406438 = sum of:
    0.002406438 = product of:
      0.004812876 = sum of:
        0.004812876 = weight(_text_:s in 3378) [ClassicSimilarity], result of:
          0.004812876 = score(doc=3378,freq=2.0), product of:
            0.05008241 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.046063907 = queryNorm
            0.09609913 = fieldWeight in 3378, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.0625 = fieldNorm(doc=3378)
      0.5 = coord(1/2)
  0.5 = coord(1/2)
    Source
    Information processing and management. 19(1983), S.273-278

Themes