Search (2 results, page 1 of 1)

  • × type_ss:"m"
  • × author_ss:"Ellis, D."
  1. Ellis, D.: Progress and problems in information retrieval (1996) 0.02
    0.023849504 = product of:
      0.047699008 = sum of:
        0.047699008 = sum of:
          0.006824517 = weight(_text_:s in 789) [ClassicSimilarity], result of:
            0.006824517 = score(doc=789,freq=6.0), product of:
              0.04100075 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.03771094 = queryNorm
              0.1664486 = fieldWeight in 789, product of:
                2.4494898 = tf(freq=6.0), with freq of:
                  6.0 = termFreq=6.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0625 = fieldNorm(doc=789)
          0.040874492 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
            0.040874492 = score(doc=789,freq=2.0), product of:
              0.13205728 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03771094 = queryNorm
              0.30952093 = fieldWeight in 789, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0625 = fieldNorm(doc=789)
      0.5 = coord(1/2)
    
    Date
    26. 7.2002 20:22:46
    Footnote
    Rez. in: Managing information 3(1996) no.10, S.49 (D. Bawden); Program 32(1998) no.2, S.190-192 (C. Revie)
    Pages
    220 S
  2. Ellis, D.: New horizons in information retrieval (1990) 0.00
    0.0017413107 = product of:
      0.0034826214 = sum of:
        0.0034826214 = product of:
          0.006965243 = sum of:
            0.006965243 = weight(_text_:s in 815) [ClassicSimilarity], result of:
              0.006965243 = score(doc=815,freq=4.0), product of:
                0.04100075 = queryWeight, product of:
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.03771094 = queryNorm
                0.16988087 = fieldWeight in 815, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.0872376 = idf(docFreq=40523, maxDocs=44218)
                  0.078125 = fieldNorm(doc=815)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: Canadian library journal. 48(1991) S.434 (E. Frick): "The book is full of information about the development of concepts and systems in this most fascinating part of professional work"
    Pages
    X,138 S