Search (4 results, page 1 of 1)

  • × author_ss:"Dreis, G."
  • × theme_ss:"OPAC"
  1. Dreis, G.: Benutzerverhalten an einem Online-Publikumskatalog für wissenschaftliche Bibliotheken : Ergebnisse und Erfahrungen aus dem OPAC-Projekt der Universitätsbibliothek Düsseldorf (1994) 0.00
    0.0030271416 = product of:
      0.009081424 = sum of:
        0.009081424 = weight(_text_:s in 2703) [ClassicSimilarity], result of:
          0.009081424 = score(doc=2703,freq=6.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.20806074 = fieldWeight in 2703, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.078125 = fieldNorm(doc=2703)
      0.33333334 = coord(1/3)
    
    Footnote
    Rez. in: ABI-Technik 14(1994) H.3, S.267-268 (D. Schmidmaier); ZfBB 42(1995) H.6, S.641-643 (G. Ewert)
    Pages
    XIII, 150 S
  2. Dreis, G.: Zur Retrievalorganisation des OPAC (1991) 0.00
    0.0024468089 = product of:
      0.0073404266 = sum of:
        0.0073404266 = weight(_text_:s in 2059) [ClassicSimilarity], result of:
          0.0073404266 = score(doc=2059,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.16817348 = fieldWeight in 2059, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.109375 = fieldNorm(doc=2059)
      0.33333334 = coord(1/3)
    
    Pages
    S.17-26
  3. Dreis, G.: Zur Analyse des Benutzerverhaltens. T.2 (1991) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 2064) [ClassicSimilarity], result of:
          0.006291794 = score(doc=2064,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 2064, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=2064)
      0.33333334 = coord(1/3)
    
    Pages
    S.131-136
  4. Dreis, G.: Formen des sachlichen Zugriffs : Probleme des automatischen Indexierens (1991) 0.00
    0.0020972649 = product of:
      0.006291794 = sum of:
        0.006291794 = weight(_text_:s in 2995) [ClassicSimilarity], result of:
          0.006291794 = score(doc=2995,freq=2.0), product of:
            0.043647945 = queryWeight, product of:
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.04014573 = queryNorm
            0.14414869 = fieldWeight in 2995, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              1.0872376 = idf(docFreq=40523, maxDocs=44218)
              0.09375 = fieldNorm(doc=2995)
      0.33333334 = coord(1/3)
    
    Pages
    S.84-99