Search (2 results, page 1 of 1)

  • × author_ss:"Ellis, D."
  • × theme_ss:"Retrievalstudien"
  1. Ellis, D.: Progress and problems in information retrieval (1996) 0.04
    0.03526516 = product of:
      0.07053032 = sum of:
        0.07053032 = sum of:
          0.020730218 = weight(_text_:d in 789) [ClassicSimilarity], result of:
            0.020730218 = score(doc=789,freq=4.0), product of:
              0.08729101 = queryWeight, product of:
                1.899872 = idf(docFreq=17979, maxDocs=44218)
                0.045945734 = queryNorm
              0.237484 = fieldWeight in 789, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                1.899872 = idf(docFreq=17979, maxDocs=44218)
                0.0625 = fieldNorm(doc=789)
          0.049800098 = weight(_text_:22 in 789) [ClassicSimilarity], result of:
            0.049800098 = score(doc=789,freq=2.0), product of:
              0.16089413 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045945734 = 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)
  2. Ellis, D.: ¬The dilemma of measurement in information retrieval research (1996) 0.00
    0.002290387 = product of:
      0.004580774 = sum of:
        0.004580774 = product of:
          0.009161548 = sum of:
            0.009161548 = weight(_text_:d in 3003) [ClassicSimilarity], result of:
              0.009161548 = score(doc=3003,freq=2.0), product of:
                0.08729101 = queryWeight, product of:
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.045945734 = queryNorm
                0.104954086 = fieldWeight in 3003, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.899872 = idf(docFreq=17979, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3003)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    

Types