Document (#39151)

Author
Haake, E.
Blenkle, M.
Ellis, R.
Zillmann, H.
Title
Nur die ersten Drei zählen! : Optimierung der Rankingverfahren über Popularitätsfaktoren bei der Elektronischen Bibliothek Bremen (E-LIB)
Source
o-bib: Das offene Bibliotheksjournal. 2(2015) Nr.2, S.33-42
Year
2015
Abstract
Seit Einführung der neuen Discovery-Kataloge stehen unseren Nutzerinnen und Nutzern zusätzlich Millionen von Dokumenten neben dem lokalen Buchbestand zur Verfügung. Diese Zielgruppe muss in die Lage versetzt werden, die für sie relevanten Titel einfach und sicher zu finden. Die Qualität von Empfehlungsfunktionen und besonders der Relevanz-Ranking-Methoden sind daher für den Erfolg eines Discovery-Systems besonders wichtig. Das Ranking bibliothekarischer Suchmaschinentechnik ignoriert bisher das Feedback durch Nutzerinnen und Nutzer. Die Staats- und Universitätsbibliothek Bremen (SuUB) setzt mit dem in Bremen entwickelten Discovery-System "E-LIB" seit Sommer 2011 zusätzlich auf eine Modifikation des Treffer-Rankings über Popularitätsfaktoren der Medien wie Klickstatistik, Auflagen- und Exemplarzahl. Die maßgeschneiderte Entwicklung eines eigenen Bibliothekskataloges, den die SuUB seit 2004 mit dem Discovery-System "E-LIB" in Bremen betreibt, erlaubt die schnelle und flexible Anpassung von Retrievalfunktionen an die Bedürfnisse der Nutzerinnen und Nutzer vor Ort.
Content
Vgl.: http://dx.doi.org/10.5282/o-bib/2015H2.
Theme
Katalogfragen allgemein
Object
E-LIB
Location
D
Bremen

Similar documents (author)

  1. Zillmann, H.: RSWK im Dienstleistungsspektrum des Bibliotheksrechenzentrums für Niedersachsen (BRZN) (1987) 2.30
    2.2957764 = sum of:
      2.2957764 = product of:
        4.5915527 = sum of:
          4.5915527 = weight(author_txt:zillmann in 44) [ClassicSimilarity], result of:
            4.5915527 = score(doc=44,freq=1.0), product of:
              0.80448246 = queryWeight, product of:
                1.1637875 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.07569722 = queryNorm
              5.7074614 = fieldWeight in 44, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.625 = fieldNorm(doc=44)
        0.5 = coord(1/2)
    
  2. Zillmann, H.: PICA als integriertes Verbundsystem (1991) 2.30
    2.2957764 = sum of:
      2.2957764 = product of:
        4.5915527 = sum of:
          4.5915527 = weight(author_txt:zillmann in 285) [ClassicSimilarity], result of:
            4.5915527 = score(doc=285,freq=1.0), product of:
              0.80448246 = queryWeight, product of:
                1.1637875 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.07569722 = queryNorm
              5.7074614 = fieldWeight in 285, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.625 = fieldNorm(doc=285)
        0.5 = coord(1/2)
    
  3. Zillmann, H.: ¬Das niederländische PICA-System : Stand: Mai 1990 (1990) 2.30
    2.2957764 = sum of:
      2.2957764 = product of:
        4.5915527 = sum of:
          4.5915527 = weight(author_txt:zillmann in 1117) [ClassicSimilarity], result of:
            4.5915527 = score(doc=1117,freq=1.0), product of:
              0.80448246 = queryWeight, product of:
                1.1637875 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.07569722 = queryNorm
              5.7074614 = fieldWeight in 1117, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.625 = fieldNorm(doc=1117)
        0.5 = coord(1/2)
    
  4. Zillmann, H.: OPAC-Design im PICA-Lokalsystem LBS3 (1991) 2.30
    2.2957764 = sum of:
      2.2957764 = product of:
        4.5915527 = sum of:
          4.5915527 = weight(author_txt:zillmann in 1118) [ClassicSimilarity], result of:
            4.5915527 = score(doc=1118,freq=1.0), product of:
              0.80448246 = queryWeight, product of:
                1.1637875 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.07569722 = queryNorm
              5.7074614 = fieldWeight in 1118, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.625 = fieldNorm(doc=1118)
        0.5 = coord(1/2)
    
  5. Zillmann, H.: Erwerbung mit ALLEGRO : 1 Jahr Routinebetrieb in Osnabrück (1992) 2.30
    2.2957764 = sum of:
      2.2957764 = product of:
        4.5915527 = sum of:
          4.5915527 = weight(author_txt:zillmann in 2435) [ClassicSimilarity], result of:
            4.5915527 = score(doc=2435,freq=1.0), product of:
              0.80448246 = queryWeight, product of:
                1.1637875 = boost
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.07569722 = queryNorm
              5.7074614 = fieldWeight in 2435, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.131938 = idf(docFreq=12, maxDocs=44218)
                0.625 = fieldNorm(doc=2435)
        0.5 = coord(1/2)
    

Similar documents (content)

  1. Blenkle, M.: Elektronische Bibliothek (E-LIB) (o.J.) 0.12
    0.124602936 = sum of:
      0.124602936 = product of:
        0.6230147 = sum of:
          0.02077374 = weight(abstract_txt:über in 2480) [ClassicSimilarity], result of:
            0.02077374 = score(doc=2480,freq=2.0), product of:
              0.05928288 = queryWeight, product of:
                1.0335658 = boost
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.014467743 = queryNorm
              0.3504172 = fieldWeight in 2480, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.0625 = fieldNorm(doc=2480)
          0.06503805 = weight(abstract_txt:nutzer in 2480) [ClassicSimilarity], result of:
            0.06503805 = score(doc=2480,freq=2.0), product of:
              0.12687163 = queryWeight, product of:
                1.5120137 = boost
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.014467743 = queryNorm
              0.5126288 = fieldWeight in 2480, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.0625 = fieldNorm(doc=2480)
          0.044164155 = weight(abstract_txt:seit in 2480) [ClassicSimilarity], result of:
            0.044164155 = score(doc=2480,freq=1.0), product of:
              0.14136434 = queryWeight, product of:
                1.95474 = boost
                4.998619 = idf(docFreq=810, maxDocs=44218)
                0.014467743 = queryNorm
              0.3124137 = fieldWeight in 2480, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.998619 = idf(docFreq=810, maxDocs=44218)
                0.0625 = fieldNorm(doc=2480)
          0.2097045 = weight(abstract_txt:suub in 2480) [ClassicSimilarity], result of:
            0.2097045 = score(doc=2480,freq=1.0), product of:
              0.3488735 = queryWeight, product of:
                2.5073066 = boost
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.014467743 = queryNorm
              0.6010904 = fieldWeight in 2480, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                9.617446 = idf(docFreq=7, maxDocs=44218)
                0.0625 = fieldNorm(doc=2480)
          0.28333429 = weight(abstract_txt:bremen in 2480) [ClassicSimilarity], result of:
            0.28333429 = score(doc=2480,freq=1.0), product of:
              0.5372036 = queryWeight, product of:
                4.400053 = boost
                8.43879 = idf(docFreq=25, maxDocs=44218)
                0.014467743 = queryNorm
              0.5274244 = fieldWeight in 2480, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.43879 = idf(docFreq=25, maxDocs=44218)
                0.0625 = fieldNorm(doc=2480)
        0.2 = coord(5/25)
    
  2. Lüth, J.: Inhaltserschließung von Internetquellen durch Nutzerinnen und Nutzer : Ergebnisse eines Tests mit Internetquellen der Virtuellen Fachbibliothek EconBiz (2009) 0.09
    0.09140653 = sum of:
      0.09140653 = product of:
        0.57129085 = sum of:
          0.025442531 = weight(abstract_txt:über in 2784) [ClassicSimilarity], result of:
            0.025442531 = score(doc=2784,freq=3.0), product of:
              0.05928288 = queryWeight, product of:
                1.0335658 = boost
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.014467743 = queryNorm
              0.42917165 = fieldWeight in 2784, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.0625 = fieldNorm(doc=2784)
          0.02259501 = weight(abstract_txt:eines in 2784) [ClassicSimilarity], result of:
            0.02259501 = score(doc=2784,freq=1.0), product of:
              0.07899589 = queryWeight, product of:
                1.1930969 = boost
                4.5764427 = idf(docFreq=1236, maxDocs=44218)
                0.014467743 = queryNorm
              0.28602767 = fieldWeight in 2784, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5764427 = idf(docFreq=1236, maxDocs=44218)
                0.0625 = fieldNorm(doc=2784)
          0.0919777 = weight(abstract_txt:nutzer in 2784) [ClassicSimilarity], result of:
            0.0919777 = score(doc=2784,freq=4.0), product of:
              0.12687163 = queryWeight, product of:
                1.5120137 = boost
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.014467743 = queryNorm
              0.72496665 = fieldWeight in 2784, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.0625 = fieldNorm(doc=2784)
          0.4312756 = weight(abstract_txt:nutzerinnen in 2784) [ClassicSimilarity], result of:
            0.4312756 = score(doc=2784,freq=5.0), product of:
              0.37769377 = queryWeight, product of:
                3.1951334 = boost
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.014467743 = queryNorm
              1.1418658 = fieldWeight in 2784, product of:
                2.236068 = tf(freq=5.0), with freq of:
                  5.0 = termFreq=5.0
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.0625 = fieldNorm(doc=2784)
        0.16 = coord(4/25)
    
  3. Blumesberger, S.; Zartl, A.: Umgang mit Metadaten in Repositorien : eine österreichweite Umfrage (2017) 0.09
    0.08810382 = sum of:
      0.08810382 = product of:
        0.5506489 = sum of:
          0.025706194 = weight(abstract_txt:über in 3911) [ClassicSimilarity], result of:
            0.025706194 = score(doc=3911,freq=1.0), product of:
              0.05928288 = queryWeight, product of:
                1.0335658 = boost
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.014467743 = queryNorm
              0.43361917 = fieldWeight in 3911, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.109375 = fieldNorm(doc=3911)
          0.10693567 = weight(abstract_txt:sommer in 3911) [ClassicSimilarity], result of:
            0.10693567 = score(doc=3911,freq=1.0), product of:
              0.12170522 = queryWeight, product of:
                1.04716 = boost
                8.033325 = idf(docFreq=38, maxDocs=44218)
                0.014467743 = queryNorm
              0.87864494 = fieldWeight in 3911, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.033325 = idf(docFreq=38, maxDocs=44218)
                0.109375 = fieldNorm(doc=3911)
          0.080480486 = weight(abstract_txt:nutzer in 3911) [ClassicSimilarity], result of:
            0.080480486 = score(doc=3911,freq=1.0), product of:
              0.12687163 = queryWeight, product of:
                1.5120137 = boost
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.014467743 = queryNorm
              0.6343458 = fieldWeight in 3911, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.109375 = fieldNorm(doc=3911)
          0.33752656 = weight(abstract_txt:nutzerinnen in 3911) [ClassicSimilarity], result of:
            0.33752656 = score(doc=3911,freq=1.0), product of:
              0.37769377 = queryWeight, product of:
                3.1951334 = boost
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.014467743 = queryNorm
              0.89365137 = fieldWeight in 3911, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.109375 = fieldNorm(doc=3911)
        0.16 = coord(4/25)
    
  4. Lorenz, B.: Systematische Aufstellung in deutschen wissenschaftlichen Bibliotheken (1985) 0.09
    0.087292366 = sum of:
      0.087292366 = product of:
        0.5455773 = sum of:
          0.018361567 = weight(abstract_txt:über in 2073) [ClassicSimilarity], result of:
            0.018361567 = score(doc=2073,freq=1.0), product of:
              0.05928288 = queryWeight, product of:
                1.0335658 = boost
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.014467743 = queryNorm
              0.30972797 = fieldWeight in 2073, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.078125 = fieldNorm(doc=2073)
          0.07789413 = weight(abstract_txt:staats in 2073) [ClassicSimilarity], result of:
            0.07789413 = score(doc=2073,freq=1.0), product of:
              0.12330555 = queryWeight, product of:
                1.0540222 = boost
                8.085969 = idf(docFreq=36, maxDocs=44218)
                0.014467743 = queryNorm
              0.6317163 = fieldWeight in 2073, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.085969 = idf(docFreq=36, maxDocs=44218)
                0.078125 = fieldNorm(doc=2073)
          0.09515373 = weight(abstract_txt:zusätzlich in 2073) [ClassicSimilarity], result of:
            0.09515373 = score(doc=2073,freq=1.0), product of:
              0.17753066 = queryWeight, product of:
                1.7885872 = boost
                6.8606052 = idf(docFreq=125, maxDocs=44218)
                0.014467743 = queryNorm
              0.53598475 = fieldWeight in 2073, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.8606052 = idf(docFreq=125, maxDocs=44218)
                0.078125 = fieldNorm(doc=2073)
          0.35416785 = weight(abstract_txt:bremen in 2073) [ClassicSimilarity], result of:
            0.35416785 = score(doc=2073,freq=1.0), product of:
              0.5372036 = queryWeight, product of:
                4.400053 = boost
                8.43879 = idf(docFreq=25, maxDocs=44218)
                0.014467743 = queryNorm
              0.6592805 = fieldWeight in 2073, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                8.43879 = idf(docFreq=25, maxDocs=44218)
                0.078125 = fieldNorm(doc=2073)
        0.16 = coord(4/25)
    
  5. Hahn, U.; Schulze, M.: Katalogerweiterungen, Mashups und Elemente der Bibliothek 2.0" in der Praxis : der Katalog der Universitätsbibliothek der Helmut-Schmidt-Universität (IHSU) Universität der Bundeswehr Hamburg (2009) 0.07
    0.07443338 = sum of:
      0.07443338 = product of:
        0.3721669 = sum of:
          0.018177023 = weight(abstract_txt:über in 2672) [ClassicSimilarity], result of:
            0.018177023 = score(doc=2672,freq=2.0), product of:
              0.05928288 = queryWeight, product of:
                1.0335658 = boost
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.014467743 = queryNorm
              0.30661505 = fieldWeight in 2672, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.964518 = idf(docFreq=2280, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2672)
          0.019770633 = weight(abstract_txt:eines in 2672) [ClassicSimilarity], result of:
            0.019770633 = score(doc=2672,freq=1.0), product of:
              0.07899589 = queryWeight, product of:
                1.1930969 = boost
                4.5764427 = idf(docFreq=1236, maxDocs=44218)
                0.014467743 = queryNorm
              0.2502742 = fieldWeight in 2672, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.5764427 = idf(docFreq=1236, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2672)
          0.056908295 = weight(abstract_txt:nutzer in 2672) [ClassicSimilarity], result of:
            0.056908295 = score(doc=2672,freq=2.0), product of:
              0.12687163 = queryWeight, product of:
                1.5120137 = boost
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.014467743 = queryNorm
              0.4485502 = fieldWeight in 2672, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.799733 = idf(docFreq=363, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2672)
          0.038643636 = weight(abstract_txt:seit in 2672) [ClassicSimilarity], result of:
            0.038643636 = score(doc=2672,freq=1.0), product of:
              0.14136434 = queryWeight, product of:
                1.95474 = boost
                4.998619 = idf(docFreq=810, maxDocs=44218)
                0.014467743 = queryNorm
              0.27336198 = fieldWeight in 2672, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                4.998619 = idf(docFreq=810, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2672)
          0.23866731 = weight(abstract_txt:nutzerinnen in 2672) [ClassicSimilarity], result of:
            0.23866731 = score(doc=2672,freq=2.0), product of:
              0.37769377 = queryWeight, product of:
                3.1951334 = boost
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.014467743 = queryNorm
              0.6319069 = fieldWeight in 2672, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                8.1705265 = idf(docFreq=33, maxDocs=44218)
                0.0546875 = fieldNorm(doc=2672)
        0.2 = coord(5/25)