Search (11 results, page 1 of 1)

  • × theme_ss:"Datenfernübertragung"
  1. Lazinger, S.S.; Peritz, B.C.: Reader use of a nationwide research library network : local OPAC vs. remote files (1991) 0.05
    0.04739448 = product of:
      0.14218344 = sum of:
        0.14218344 = sum of:
          0.10206425 = weight(_text_:page in 3013) [ClassicSimilarity], result of:
            0.10206425 = score(doc=3013,freq=2.0), product of:
              0.27565226 = queryWeight, product of:
                5.5854197 = idf(docFreq=450, maxDocs=44218)
                0.049352113 = queryNorm
              0.37026453 = fieldWeight in 3013, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.5854197 = idf(docFreq=450, maxDocs=44218)
                0.046875 = fieldNorm(doc=3013)
          0.040119182 = weight(_text_:22 in 3013) [ClassicSimilarity], result of:
            0.040119182 = score(doc=3013,freq=2.0), product of:
              0.1728227 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.049352113 = queryNorm
              0.23214069 = fieldWeight in 3013, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046875 = fieldNorm(doc=3013)
      0.33333334 = coord(1/3)
    
    Abstract
    The primary objective of the present study was to exmine whether readers conducting bibliographic searches in ALEPH - Israel's research library network - tend to search only within the OPAC of the library within which they are working or whether they access the remote OPACs of other libraries. The ALEPH network has a dezentralized database. Therefore, it was possible to examine this question because each library has its own access code and each database can be searched separately. The data were collected by means of a one-page questionnaire lefr beside each terminal in the library of the Graduate School of Library and Archive Studies of the Hebrew University of Jerusalem during an entire academic years. results of analysis of the data collected in this survey are presented in 6 tables
    Date
    22. 2.1999 13:06:18
  2. Boßmeyer, C.: OSI-Anwendungen in Bibliotheken oder Was ein Bibliothekar von OSI wissen sollte (1995) 0.03
    0.031408206 = product of:
      0.09422461 = sum of:
        0.09422461 = weight(_text_:query in 5082) [ClassicSimilarity], result of:
          0.09422461 = score(doc=5082,freq=2.0), product of:
            0.22937049 = queryWeight, product of:
              4.6476326 = idf(docFreq=1151, maxDocs=44218)
              0.049352113 = queryNorm
            0.41079655 = fieldWeight in 5082, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.6476326 = idf(docFreq=1151, maxDocs=44218)
              0.0625 = fieldNorm(doc=5082)
      0.33333334 = coord(1/3)
    
    Abstract
    Open System Interconnection (OSI) Standard 7498 appeared in 1984. Open systems of PCs and workstations decentralize information processing and divide it between several computers, based on the client-server concept. Relevant terminology is explained, including application protocol, bases of the SR/Z39.50 model, data transmission, search request services, query types, attribute sets, transmission format, transfer syntax, solution models and cooperation between library systems
  3. SRW/U erleichtert verteilte Datenbankrecherchen (2005) 0.02
    0.019630127 = product of:
      0.05889038 = sum of:
        0.05889038 = weight(_text_:query in 3972) [ClassicSimilarity], result of:
          0.05889038 = score(doc=3972,freq=2.0), product of:
            0.22937049 = queryWeight, product of:
              4.6476326 = idf(docFreq=1151, maxDocs=44218)
              0.049352113 = queryNorm
            0.25674784 = fieldWeight in 3972, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.6476326 = idf(docFreq=1151, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3972)
      0.33333334 = coord(1/3)
    
    Content
    "Seit zwei Jahrzehnten nutzen vor allem Bibliotheksverbünde das Protokoll Z39.50, um ihren Benutzern im Internet die simultane Abfrage mehrerer Datenbanken zu ermöglichen. Jetzt gibt es einen Nachfolger dieses Protokolls, der eine einfachere Implementierung verspricht. Damit ist auch eine größere Verbreitung für die Suche in verteilten Datenbeständen anderer Institutionen, wie z.B. Archiven und Museen, wahrscheinlich. SRW/U (Search and Retrieve Web Service bzw. Search and Retrieve URL Service, www.loc.90v/z3950/agency/zing/srw) wurde von einer an der Library of Congress angesiedelten Initiative entwickelt und beruht auf etablierten Standards wie URI und XML. Die mit SRW und SRU möglichen Abfragen und Ergebnisse unterscheiden sich nur in der Art der Übertragung, verwenden aber beide dieselben Prozeduren. Davon gibt es nur drei: explain, scan und searchRetrieve. Die beiden Erstgenannten dienen dazu, allgemeine Informationen über den Datenanbieter bzw. die verfügbaren Indexe zubekommen. Das Herzstück ist die search-Retrieve-Anweisung. Damit werden Anfragen direkt an die Datenbank gesendet und die Parameter des Suchergebnisses definiert. Verwendet wird dafür die Retrievalsprache CQL (Common Query Language), die simple Freitextsuchen, aber auch mit Boolschen Operatoren verknüpfte Recherchen ermöglicht. Bei SRU werden die Suchbefehle mittels einfacher HTTP GET -Anfragen übermittelt, die Ergebnisse in XML zurückgeliefert. Zur Strukturierung der Daten dienen z.B. Dublin Core, MARC oder EAD. Welches Format von der jeweiligen Datenbank bereitgestellt wird, kann durch die explain-Anweisung ermittelt gebracht werden."
  4. Petry, W.; Werner, H.-J.: Anwendertraum: Kommunikations- und Retrieval-Software im Vergleich (1993) 0.02
    0.017830748 = product of:
      0.053492244 = sum of:
        0.053492244 = product of:
          0.10698449 = sum of:
            0.10698449 = weight(_text_:22 in 4147) [ClassicSimilarity], result of:
              0.10698449 = score(doc=4147,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.61904186 = fieldWeight in 4147, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.125 = fieldNorm(doc=4147)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Cogito. 9(1993) H.2, S.18-22
  5. Petry, W.: Datenreisen billiger : wie man Telekommunikationskosten sparen kann (1994) 0.02
    0.015601905 = product of:
      0.046805713 = sum of:
        0.046805713 = product of:
          0.09361143 = sum of:
            0.09361143 = weight(_text_:22 in 8109) [ClassicSimilarity], result of:
              0.09361143 = score(doc=8109,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.5416616 = fieldWeight in 8109, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=8109)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Cogito. 10(1994) H.4, S.17-22
  6. Matthews, J.R.; Parker, M.R.: Local Area Networks and Wide Area Networks for libraries (1995) 0.02
    0.015601905 = product of:
      0.046805713 = sum of:
        0.046805713 = product of:
          0.09361143 = sum of:
            0.09361143 = weight(_text_:22 in 2656) [ClassicSimilarity], result of:
              0.09361143 = score(doc=2656,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.5416616 = fieldWeight in 2656, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.109375 = fieldNorm(doc=2656)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    30.11.1995 20:53:22
  7. Scheuerer, J.: Onlinebanking (1997) 0.01
    0.013373061 = product of:
      0.040119182 = sum of:
        0.040119182 = product of:
          0.080238365 = sum of:
            0.080238365 = weight(_text_:22 in 354) [ClassicSimilarity], result of:
              0.080238365 = score(doc=354,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.46428138 = fieldWeight in 354, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=354)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Source
    Com!. 1997, H.8, S.22-24
  8. Berezak-Lazarus, N.: ADSL - Auf der Überholspur durch die Multimedia-Welt (1999) 0.01
    0.013373061 = product of:
      0.040119182 = sum of:
        0.040119182 = product of:
          0.080238365 = sum of:
            0.080238365 = weight(_text_:22 in 5935) [ClassicSimilarity], result of:
              0.080238365 = score(doc=5935,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.46428138 = fieldWeight in 5935, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.09375 = fieldNorm(doc=5935)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Footnote
    Rez. in: Internet Professionell 2000, H.2, S.22
  9. Cerf, V.G.: Netztechnik (1995) 0.01
    0.011144217 = product of:
      0.03343265 = sum of:
        0.03343265 = product of:
          0.0668653 = sum of:
            0.0668653 = weight(_text_:22 in 877) [ClassicSimilarity], result of:
              0.0668653 = score(doc=877,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.38690117 = fieldWeight in 877, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=877)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Pages
    S.22-31
  10. Duhm, U.: Ring frei zur nächsten Runde (1999) 0.01
    0.011144217 = product of:
      0.03343265 = sum of:
        0.03343265 = product of:
          0.0668653 = sum of:
            0.0668653 = weight(_text_:22 in 2955) [ClassicSimilarity], result of:
              0.0668653 = score(doc=2955,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.38690117 = fieldWeight in 2955, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=2955)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    19. 2.1999 20:21:22
  11. Sloan, B.G.: Remote access : design implications for the online catalog (1991) 0.01
    0.0078009525 = product of:
      0.023402857 = sum of:
        0.023402857 = product of:
          0.046805713 = sum of:
            0.046805713 = weight(_text_:22 in 3696) [ClassicSimilarity], result of:
              0.046805713 = score(doc=3696,freq=2.0), product of:
                0.1728227 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049352113 = queryNorm
                0.2708308 = fieldWeight in 3696, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3696)
          0.5 = coord(1/2)
      0.33333334 = coord(1/3)
    
    Date
    8. 1.2007 17:22:42