Search (377 results, page 19 of 19)

  • × theme_ss:"OPAC"
  1. Micco, M.: ¬The next generation of online public access catalogs : a new look at subject access using hypermedia (1991) 0.01
    0.006515946 = product of:
      0.019547837 = sum of:
        0.019547837 = weight(_text_:der in 517) [ClassicSimilarity], result of:
          0.019547837 = score(doc=517,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.17275909 = fieldWeight in 517, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=517)
      0.33333334 = coord(1/3)
    
    Content
    Dieser Beitrag enthält beispielsweise die Zahlen, daß 30% der Recherchen bei 0 Treffern landen, daß bei den verbleibenden 70% die durchschnittliche Trefferzahl bei 170 liegt, daß Benutzer durchschnittlich aber nur 7 Treffer genauer ansehen
  2. Kühle, G.: Lokale Kooperation öffentlicher Bibliotheken unterschiedlicher Träger in Bezug auf ein Konzept für einen gemeinsamen Online-Katalog am Beispiel der ÖBs in Willich (2009) 0.01
    0.006515946 = product of:
      0.019547837 = sum of:
        0.019547837 = weight(_text_:der in 3202) [ClassicSimilarity], result of:
          0.019547837 = score(doc=3202,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.17275909 = fieldWeight in 3202, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3202)
      0.33333334 = coord(1/3)
    
  3. Vogt, H.: ¬The future of online catalogues in the northern areas of Germany (1986) 0.01
    0.006515946 = product of:
      0.019547837 = sum of:
        0.019547837 = weight(_text_:der in 2059) [ClassicSimilarity], result of:
          0.019547837 = score(doc=2059,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.17275909 = fieldWeight in 2059, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2059)
      0.33333334 = coord(1/3)
    
    Series
    Veröffentlichungen der Gesamthochschulbibliothek Essen; 8
  4. Rumpf, L.: Open Catalog : eine neue Präsentationsmöglichkeit von Bibliotheksdaten im Semantic Web? (2012) 0.01
    0.006515946 = product of:
      0.019547837 = sum of:
        0.019547837 = weight(_text_:der in 2444) [ClassicSimilarity], result of:
          0.019547837 = score(doc=2444,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.17275909 = fieldWeight in 2444, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=2444)
      0.33333334 = coord(1/3)
    
    Abstract
    Seit Jahrhunderten produzieren Bibliotheken mit großem Aufwand Metadaten zu ihren Beständen - Katalogdaten. Lange Zeit waren diese für spezielle Zwecke produzierten Informationen ausschließlich in Bibliothekskatalogen auffindbar und konnten von Anderen nicht nachgenutzt werden. Diese Situation ändert sich momentan durch die Freigabe von Katalogdaten und anderen von Bibliotheken produzierten Daten als linked open data (LOD). In diesem Beitrag wird nach einer allgemeinen Einführung in das Thema LOD erläutert, welche Gründe es für die Freigabe von Bibliotheksdaten gibt und welche technischen, rechtlichen und inhaltlichen Anforderungen die Daten dafür erfüllen müssen. Im Folgenden wird dargestellt, welche Nutzungsmöglichkeiten sich inner- und außerhalb von Bibliotheken für deren Katalogdaten, kontrollierte Vokabulare und Nutzungsdaten ergeben. Anhand aktueller Projekte aus dem Bibliotheksumfeld werden Potenziale und Probleme der Datenfreigabe erläutert.
  5. Hora, M.: Methoden für das Ranking in Discovery-Systemen (2018) 0.01
    0.006515946 = product of:
      0.019547837 = sum of:
        0.019547837 = weight(_text_:der in 4968) [ClassicSimilarity], result of:
          0.019547837 = score(doc=4968,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.17275909 = fieldWeight in 4968, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4968)
      0.33333334 = coord(1/3)
    
    Abstract
    Discovery-Systeme bieten meist als Standardeinstellung eine Sortierung nach Relevanz an. Wie die Relevanz ermittelt wird, ist häufig intransparent. Dabei wären Kenntnisse darüber aus Nutzersicht ein wichtiger Faktor in der Informationskompetenz, während Bibliotheken sicherstellen sollten, dass das Ranking zum eigenen Bestand und Publikum passt. In diesem Aufsatz wird dargestellt, wie Discovery-Systeme Treffer auswählen und bewerten. Dazu gehören Indexierung, Prozessierung, Text-Matching und weitere Relevanzkriterien, z. B. Popularität oder Verfügbarkeit. Schließlich müssen alle betrachteten Kriterien zu einem zentralen Score zusammengefasst werden. Ein besonderer Fokus wird auf das Ranking von EBSCO Discovery Service, Primo und Summon gelegt.
  6. Golderman, G.M.; Connolly, B.: Between the book covers : going beyond OPAC keyword searching with the deep linking capabilities of Google Scholar and Google Book Search (2004/05) 0.01
    0.00571918 = product of:
      0.01715754 = sum of:
        0.01715754 = product of:
          0.03431508 = sum of:
            0.03431508 = weight(_text_:22 in 731) [ClassicSimilarity], result of:
              0.03431508 = score(doc=731,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.19345059 = fieldWeight in 731, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=731)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    2.12.2007 19:39:22
  7. Schmidt, R.M.: Online public access catalogs serving users in an electronic library environment (1993) 0.01
    0.0055850963 = product of:
      0.016755288 = sum of:
        0.016755288 = weight(_text_:der in 7002) [ClassicSimilarity], result of:
          0.016755288 = score(doc=7002,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.14807922 = fieldWeight in 7002, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.046875 = fieldNorm(doc=7002)
      0.33333334 = coord(1/3)
    
    Series
    Veröffentlichungen der Universitätsbibliothek Essen; 15
  8. Su, S.-F.: Dialogue with an OPAC : how visionary was Swanson in 1964? (1994) 0.01
    0.0055850963 = product of:
      0.016755288 = sum of:
        0.016755288 = weight(_text_:der in 7674) [ClassicSimilarity], result of:
          0.016755288 = score(doc=7674,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.14807922 = fieldWeight in 7674, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.046875 = fieldNorm(doc=7674)
      0.33333334 = coord(1/3)
    
    Theme
    Geschichte der Sacherschließung
  9. Riesthuis, G.J.A.; Colenbrander-Dijkman, A.-M.: Subject access to central catalogues : incompatibility issues of library classification systems and subject headings in subject cataloguing (1986) 0.01
    0.0055850963 = product of:
      0.016755288 = sum of:
        0.016755288 = weight(_text_:der in 3926) [ClassicSimilarity], result of:
          0.016755288 = score(doc=3926,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.14807922 = fieldWeight in 3926, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.046875 = fieldNorm(doc=3926)
      0.33333334 = coord(1/3)
    
    Source
    Die Klassifikation und ihr Umfeld: Proc. 10. Jahrestagung der Gesellschaft für Klassifikation, Münster, 18.-21.6.1986. Hrsg.: P.O. Degens
  10. Cathro, W.: New frameworks for resource discovery and delivery : the changing role of the catalogue (2006) 0.00
    0.004654247 = product of:
      0.01396274 = sum of:
        0.01396274 = weight(_text_:der in 6107) [ClassicSimilarity], result of:
          0.01396274 = score(doc=6107,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.12339935 = fieldWeight in 6107, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0390625 = fieldNorm(doc=6107)
      0.33333334 = coord(1/3)
    
    Content
    Vortrag anlässlich der 72ND IFLA General Conference and Council, 20-24 August 2006, Seoul, Korea
  11. Lewandowski, D.: How can library materials be ranked in the OPAC? (2009) 0.00
    0.004654247 = product of:
      0.01396274 = sum of:
        0.01396274 = weight(_text_:der in 2810) [ClassicSimilarity], result of:
          0.01396274 = score(doc=2810,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.12339935 = fieldWeight in 2810, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2810)
      0.33333334 = coord(1/3)
    
    Content
    Vortrag, anlässlich der 9. Internationalen Bielefeld-Konferenz 2009, 3. - 5. Februar 2009.
  12. Future of online catalogues : Essen symposium, 30.9.-3.10.1985 (1986) 0.00
    0.004654247 = product of:
      0.01396274 = sum of:
        0.01396274 = weight(_text_:der in 2077) [ClassicSimilarity], result of:
          0.01396274 = score(doc=2077,freq=2.0), product of:
            0.11315084 = queryWeight, product of:
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.050654724 = queryNorm
            0.12339935 = fieldWeight in 2077, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.2337668 = idf(docFreq=12875, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2077)
      0.33333334 = coord(1/3)
    
    Series
    Veröffentlichungen der Gesamthochschulbibliothek Essen; 8
  13. Blosser, J.; Michaelson, R.; Routh. R.; Xia, P.: Defining the landscape of Web resources : Concluding Report of the BAER Web Resources Sub-Group (2000) 0.00
    0.004575344 = product of:
      0.013726031 = sum of:
        0.013726031 = product of:
          0.027452063 = sum of:
            0.027452063 = weight(_text_:22 in 1447) [ClassicSimilarity], result of:
              0.027452063 = score(doc=1447,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.15476047 = fieldWeight in 1447, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=1447)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    21. 4.2002 10:22:31
  14. Thomas, D.H.: ¬The effect of interface design on item selection in an online catalog (2001) 0.00
    0.004575344 = product of:
      0.013726031 = sum of:
        0.013726031 = product of:
          0.027452063 = sum of:
            0.027452063 = weight(_text_:22 in 168) [ClassicSimilarity], result of:
              0.027452063 = score(doc=168,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.15476047 = fieldWeight in 168, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=168)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    10. 9.2000 17:38:22
  15. Barnes, S.; McCue, J.: Linking library records to bibliographic databases : an analysis of common data elements in BIOSIS, Agricola, and the OPAC (1991) 0.00
    0.004575344 = product of:
      0.013726031 = sum of:
        0.013726031 = product of:
          0.027452063 = sum of:
            0.027452063 = weight(_text_:22 in 520) [ClassicSimilarity], result of:
              0.027452063 = score(doc=520,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.15476047 = fieldWeight in 520, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=520)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    8. 1.2007 17:22:25
  16. Saving the time of the library user through subject access innovation : Papers in honor of Pauline Atherton Cochrane (2000) 0.00
    0.004003426 = product of:
      0.012010277 = sum of:
        0.012010277 = product of:
          0.024020554 = sum of:
            0.024020554 = weight(_text_:22 in 1429) [ClassicSimilarity], result of:
              0.024020554 = score(doc=1429,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.1354154 = fieldWeight in 1429, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=1429)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    22. 9.1997 19:16:05
  17. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.00
    0.004003426 = product of:
      0.012010277 = sum of:
        0.012010277 = product of:
          0.024020554 = sum of:
            0.024020554 = weight(_text_:22 in 2509) [ClassicSimilarity], result of:
              0.024020554 = score(doc=2509,freq=2.0), product of:
                0.17738421 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050654724 = queryNorm
                0.1354154 = fieldWeight in 2509, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.02734375 = fieldNorm(doc=2509)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Electronic library. 22(2004) no.2, S.112-120

Authors

Years

Languages

Types

  • a 322
  • x 19
  • m 16
  • el 13
  • s 10
  • h 4
  • p 2
  • b 1
  • d 1
  • n 1
  • r 1
  • More… Less…