Document (#37562)

Author
Lamerz, L.
Title
E-Books in der Wissenschaft - Fluch oder Segen? : Eine Untersuchung der Nutzungsstatistiken der Universitäts- und Landesbibliothek Düsseldorf im Bereich E-Books
Source
Information - Wissenschaft und Praxis. 63(2012) H.4, S.233-240
Year
2012
Abstract
Seit 2009 werden an der Universitäts- und Landesbibliothek Düsseldorf (ULBD) Statistiken zu den Downloadzahlen der abonnierten E-Books geführt. Um sich diesen Statistiken und deren Aussagegehalt zu nähern, werden nach einer kurzen Einleitung zunächst die vielfältigen Probleme thematisiert, die im Bereich der Nutzungsstatistiken von Bibliotheken vorkommen. Danach werden die Statistiken der drei größten E-Book-Anbieter an der ULBD vorgestellt und diskutiert. Die bisher vorliegenden Daten von zwei Jahren erlauben dabei nur eine vorläufige Analyse.
Content
Vgl.: http://www.degruyter.com/view/j/iwp.2012.63.issue-4/iwp-2012-0049/iwp-2012-0049.xml?format=INT.
Theme
Elektronisches Publizieren
Location
D
Düsseldorf

Similar documents (content)

  1. Lemanski, T.; Siebert, I.; Weber, R: Erschließung und Digitalisierung von Schulprogrammen : Bericht über ein Projekt der Universitäts- und Landesbibliothek Düsseldorf (2011) 0.16
    0.16155146 = sum of:
      0.16155146 = product of:
        0.5769695 = sum of:
          0.026002524 = weight(abstract_txt:bisher in 1381) [ClassicSimilarity], result of:
            0.026002524 = score(doc=1381,freq=1.0), product of:
              0.08027467 = queryWeight, product of:
                5.9230976 = idf(docFreq=310, maxDocs=42740)
                0.013552819 = queryNorm
              0.32391942 = fieldWeight in 1381, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.9230976 = idf(docFreq=310, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.039264992 = weight(abstract_txt:2009 in 1381) [ClassicSimilarity], result of:
            0.039264992 = score(doc=1381,freq=1.0), product of:
              0.10565869 = queryWeight, product of:
                1.1472639 = boost
                6.7953563 = idf(docFreq=129, maxDocs=42740)
                0.013552819 = queryNorm
              0.37162104 = fieldWeight in 1381, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.7953563 = idf(docFreq=129, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.021965329 = weight(abstract_txt:eine in 1381) [ClassicSimilarity], result of:
            0.021965329 = score(doc=1381,freq=4.0), product of:
              0.056935526 = queryWeight, product of:
                1.1910155 = boost
                3.5272505 = idf(docFreq=3413, maxDocs=42740)
                0.013552819 = queryNorm
              0.38579303 = fieldWeight in 1381, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5272505 = idf(docFreq=3413, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.032874275 = weight(abstract_txt:werden in 1381) [ClassicSimilarity], result of:
            0.032874275 = score(doc=1381,freq=4.0), product of:
              0.08527586 = queryWeight, product of:
                1.7851899 = boost
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.013552819 = queryNorm
              0.38550508 = fieldWeight in 1381, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.1070975 = weight(abstract_txt:landesbibliothek in 1381) [ClassicSimilarity], result of:
            0.1070975 = score(doc=1381,freq=1.0), product of:
              0.25987494 = queryWeight, product of:
                2.544532 = boost
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.013552819 = queryNorm
              0.41211167 = fieldWeight in 1381, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.1257154 = weight(abstract_txt:universitäts in 1381) [ClassicSimilarity], result of:
            0.1257154 = score(doc=1381,freq=1.0), product of:
              0.28918153 = queryWeight, product of:
                2.684176 = boost
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.013552819 = queryNorm
              0.43472835 = fieldWeight in 1381, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
          0.22404951 = weight(abstract_txt:düsseldorf in 1381) [ClassicSimilarity], result of:
            0.22404951 = score(doc=1381,freq=3.0), product of:
              0.29473642 = queryWeight, product of:
                2.7098336 = boost
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.013552819 = queryNorm
              0.7601691 = fieldWeight in 1381, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.0546875 = fieldNorm(doc=1381)
        0.28 = coord(7/25)
    
  2. Lepsky, K.: Auf dem Weg zur automatischen Inhaltserschließung? : Das DFG-Projekt MILOS und seine Ergebnisse (1997) 0.16
    0.1585585 = sum of:
      0.1585585 = product of:
        0.7927925 = sum of:
          0.021965329 = weight(abstract_txt:eine in 1012) [ClassicSimilarity], result of:
            0.021965329 = score(doc=1012,freq=1.0), product of:
              0.056935526 = queryWeight, product of:
                1.1910155 = boost
                3.5272505 = idf(docFreq=3413, maxDocs=42740)
                0.013552819 = queryNorm
              0.38579303 = fieldWeight in 1012, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5272505 = idf(docFreq=3413, maxDocs=42740)
                0.109375 = fieldNorm(doc=1012)
          0.04649125 = weight(abstract_txt:werden in 1012) [ClassicSimilarity], result of:
            0.04649125 = score(doc=1012,freq=2.0), product of:
              0.08527586 = queryWeight, product of:
                1.7851899 = boost
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.013552819 = queryNorm
              0.5451865 = fieldWeight in 1012, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.109375 = fieldNorm(doc=1012)
          0.214195 = weight(abstract_txt:landesbibliothek in 1012) [ClassicSimilarity], result of:
            0.214195 = score(doc=1012,freq=1.0), product of:
              0.25987494 = queryWeight, product of:
                2.544532 = boost
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.013552819 = queryNorm
              0.82422334 = fieldWeight in 1012, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.109375 = fieldNorm(doc=1012)
          0.2514308 = weight(abstract_txt:universitäts in 1012) [ClassicSimilarity], result of:
            0.2514308 = score(doc=1012,freq=1.0), product of:
              0.28918153 = queryWeight, product of:
                2.684176 = boost
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.013552819 = queryNorm
              0.8694567 = fieldWeight in 1012, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.109375 = fieldNorm(doc=1012)
          0.2587101 = weight(abstract_txt:düsseldorf in 1012) [ClassicSimilarity], result of:
            0.2587101 = score(doc=1012,freq=1.0), product of:
              0.29473642 = queryWeight, product of:
                2.7098336 = boost
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.013552819 = queryNorm
              0.8777677 = fieldWeight in 1012, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.109375 = fieldNorm(doc=1012)
        0.2 = coord(5/25)
    
  3. Kooperative Entwicklung einer hypermedialen Lernumgebung durch Universitätsbibliothek und Fachbereich (2002) 0.16
    0.15663157 = sum of:
      0.15663157 = product of:
        0.7831579 = sum of:
          0.018785302 = weight(abstract_txt:werden in 2347) [ClassicSimilarity], result of:
            0.018785302 = score(doc=2347,freq=1.0), product of:
              0.08527586 = queryWeight, product of:
                1.7851899 = boost
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.013552819 = queryNorm
              0.22028862 = fieldWeight in 2347, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.0625 = fieldNorm(doc=2347)
          0.04746599 = weight(abstract_txt:bereich in 2347) [ClassicSimilarity], result of:
            0.04746599 = score(doc=2347,freq=1.0), product of:
              0.13819912 = queryWeight, product of:
                1.8555744 = boost
                5.495374 = idf(docFreq=476, maxDocs=42740)
                0.013552819 = queryNorm
              0.3434609 = fieldWeight in 2347, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.495374 = idf(docFreq=476, maxDocs=42740)
                0.0625 = fieldNorm(doc=2347)
          0.21199805 = weight(abstract_txt:landesbibliothek in 2347) [ClassicSimilarity], result of:
            0.21199805 = score(doc=2347,freq=3.0), product of:
              0.25987494 = queryWeight, product of:
                2.544532 = boost
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.013552819 = queryNorm
              0.8157695 = fieldWeight in 2347, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.0625 = fieldNorm(doc=2347)
          0.24885197 = weight(abstract_txt:universitäts in 2347) [ClassicSimilarity], result of:
            0.24885197 = score(doc=2347,freq=3.0), product of:
              0.28918153 = queryWeight, product of:
                2.684176 = boost
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.013552819 = queryNorm
              0.86053896 = fieldWeight in 2347, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.0625 = fieldNorm(doc=2347)
          0.2560566 = weight(abstract_txt:düsseldorf in 2347) [ClassicSimilarity], result of:
            0.2560566 = score(doc=2347,freq=3.0), product of:
              0.29473642 = queryWeight, product of:
                2.7098336 = boost
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.013552819 = queryNorm
              0.8687647 = fieldWeight in 2347, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.0625 = fieldNorm(doc=2347)
        0.2 = coord(5/25)
    
  4. OIliges-Wieczorek, U.: Retrokonversion der Thomas-Mann-Sammlung : DFG finanziert Projekt an der Universitäts- und Landesbibliothek Düsseldorf (2008) 0.12
    0.12417187 = sum of:
      0.12417187 = product of:
        1.0347656 = sum of:
          0.30599284 = weight(abstract_txt:landesbibliothek in 3670) [ClassicSimilarity], result of:
            0.30599284 = score(doc=3670,freq=1.0), product of:
              0.25987494 = queryWeight, product of:
                2.544532 = boost
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.013552819 = queryNorm
              1.1774619 = fieldWeight in 3670, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.535756 = idf(docFreq=61, maxDocs=42740)
                0.15625 = fieldNorm(doc=3670)
          0.3591869 = weight(abstract_txt:universitäts in 3670) [ClassicSimilarity], result of:
            0.3591869 = score(doc=3670,freq=1.0), product of:
              0.28918153 = queryWeight, product of:
                2.684176 = boost
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.013552819 = queryNorm
              1.242081 = fieldWeight in 3670, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.9493184 = idf(docFreq=40, maxDocs=42740)
                0.15625 = fieldNorm(doc=3670)
          0.3695859 = weight(abstract_txt:düsseldorf in 3670) [ClassicSimilarity], result of:
            0.3695859 = score(doc=3670,freq=1.0), product of:
              0.29473642 = queryWeight, product of:
                2.7098336 = boost
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.013552819 = queryNorm
              1.2539539 = fieldWeight in 3670, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.025305 = idf(docFreq=37, maxDocs=42740)
                0.15625 = fieldNorm(doc=3670)
        0.12 = coord(3/25)
    
  5. Malits, A.; Schäuble, P.: ¬Der Digitale Assistent : halbautomatisches Verfahren der Sacherschließung in der Zentralbibliothek Zürich (2014) 0.11
    0.113960415 = sum of:
      0.113960415 = product of:
        0.7122526 = sum of:
          0.054537456 = weight(abstract_txt:vorliegenden in 4563) [ClassicSimilarity], result of:
            0.054537456 = score(doc=4563,freq=1.0), product of:
              0.09182818 = queryWeight, product of:
                1.0695442 = boost
                6.3350143 = idf(docFreq=205, maxDocs=42740)
                0.013552819 = queryNorm
              0.5939076 = fieldWeight in 4563, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.3350143 = idf(docFreq=205, maxDocs=42740)
                0.09375 = fieldNorm(doc=4563)
          0.08114104 = weight(abstract_txt:danach in 4563) [ClassicSimilarity], result of:
            0.08114104 = score(doc=4563,freq=1.0), product of:
              0.11967583 = queryWeight, product of:
                1.2209952 = boost
                7.232074 = idf(docFreq=83, maxDocs=42740)
                0.013552819 = queryNorm
              0.6780069 = fieldWeight in 4563, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                7.232074 = idf(docFreq=83, maxDocs=42740)
                0.09375 = fieldNorm(doc=4563)
          0.048805647 = weight(abstract_txt:werden in 4563) [ClassicSimilarity], result of:
            0.048805647 = score(doc=4563,freq=3.0), product of:
              0.08527586 = queryWeight, product of:
                1.7851899 = boost
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.013552819 = queryNorm
              0.57232666 = fieldWeight in 4563, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.524618 = idf(docFreq=3422, maxDocs=42740)
                0.09375 = fieldNorm(doc=4563)
          0.52776843 = weight(abstract_txt:statistiken in 4563) [ClassicSimilarity], result of:
            0.52776843 = score(doc=4563,freq=1.0), product of:
              0.6014258 = queryWeight, product of:
                4.7409177 = boost
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.013552819 = queryNorm
              0.87752867 = fieldWeight in 4563, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.360306 = idf(docFreq=9, maxDocs=42740)
                0.09375 = fieldNorm(doc=4563)
        0.16 = coord(4/25)