Search (712 results, page 1 of 36)

  • × year_i:[2000 TO 2010}
  • × language_ss:"e"
  1. Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004) 0.32 
    0.31727687 = sum of:
  0.07454965 = product of:
    0.22364895 = sum of:
      0.22364895 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
        0.22364895 = score(doc=562,freq=2.0), product of:
          0.3979391 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.046937786 = queryNorm
          0.56201804 = fieldWeight in 562, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.046875 = fieldNorm(doc=562)
    0.33333334 = coord(1/3)
  0.22364895 = weight(_text_:2f in 562) [ClassicSimilarity], result of:
    0.22364895 = score(doc=562,freq=2.0), product of:
      0.3979391 = queryWeight, product of:
        8.478011 = idf(docFreq=24, maxDocs=44218)
        0.046937786 = queryNorm
      0.56201804 = fieldWeight in 562, product of:
        1.4142135 = tf(freq=2.0), with freq of:
          2.0 = termFreq=2.0
        8.478011 = idf(docFreq=24, maxDocs=44218)
        0.046875 = fieldNorm(doc=562)
  0.019078264 = product of:
    0.038156528 = sum of:
      0.038156528 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
        0.038156528 = score(doc=562,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.23214069 = fieldWeight in 562, 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=562)
    0.5 = coord(1/2)
    Content
    Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
    Date
    8. 1.2013 10:22:32
  2. Vetere, G.; Lenzerini, M.: Models for semantic interoperability in service-oriented architectures (2005) 0.23 
    0.23193225 = product of:
  0.34789836 = sum of:
    0.08697459 = product of:
      0.26092377 = sum of:
        0.26092377 = weight(_text_:3a in 306) [ClassicSimilarity], result of:
          0.26092377 = score(doc=306,freq=2.0), product of:
            0.3979391 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046937786 = queryNorm
            0.65568775 = fieldWeight in 306, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.0546875 = fieldNorm(doc=306)
      0.33333334 = coord(1/3)
    0.26092377 = weight(_text_:2f in 306) [ClassicSimilarity], result of:
      0.26092377 = score(doc=306,freq=2.0), product of:
        0.3979391 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046937786 = queryNorm
        0.65568775 = fieldWeight in 306, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.0546875 = fieldNorm(doc=306)
  0.6666667 = coord(2/3)
    Content
    Vgl.: http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=5386707&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D5386707.
  3. Mas, S.; Marleau, Y.: Proposition of a faceted classification model to support corporate information organization and digital records management (2009) 0.20 
    0.19879907 = product of:
  0.2981986 = sum of:
    0.07454965 = product of:
      0.22364895 = sum of:
        0.22364895 = weight(_text_:3a in 2918) [ClassicSimilarity], result of:
          0.22364895 = score(doc=2918,freq=2.0), product of:
            0.3979391 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046937786 = queryNorm
            0.56201804 = fieldWeight in 2918, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046875 = fieldNorm(doc=2918)
      0.33333334 = coord(1/3)
    0.22364895 = weight(_text_:2f in 2918) [ClassicSimilarity], result of:
      0.22364895 = score(doc=2918,freq=2.0), product of:
        0.3979391 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046937786 = queryNorm
        0.56201804 = fieldWeight in 2918, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046875 = fieldNorm(doc=2918)
  0.6666667 = coord(2/3)
    Footnote
    Vgl.: http://ieeexplore.ieee.org/Xplore/login.jsp?reload=true&url=http%3A%2F%2Fieeexplore.ieee.org%2Fiel5%2F4755313%2F4755314%2F04755480.pdf%3Farnumber%3D4755480&authDecision=-203.
  4. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.13 
    0.13253272 = product of:
  0.19879907 = sum of:
    0.04969977 = product of:
      0.1490993 = sum of:
        0.1490993 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
          0.1490993 = score(doc=701,freq=2.0), product of:
            0.3979391 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.046937786 = queryNorm
            0.3746787 = fieldWeight in 701, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.03125 = fieldNorm(doc=701)
      0.33333334 = coord(1/3)
    0.1490993 = weight(_text_:2f in 701) [ClassicSimilarity], result of:
      0.1490993 = score(doc=701,freq=2.0), product of:
        0.3979391 = queryWeight, product of:
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.046937786 = queryNorm
        0.3746787 = fieldWeight in 701, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          8.478011 = idf(docFreq=24, maxDocs=44218)
          0.03125 = fieldNorm(doc=701)
  0.6666667 = coord(2/3)
    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
  5. Walker, J.: SilverPlatter Information : Integration of information resources (2000) 0.06 
    0.06310718 = product of:
  0.18932153 = sum of:
    0.18932153 = sum of:
      0.12572731 = weight(_text_:datenbanken in 4916) [ClassicSimilarity], result of:
        0.12572731 = score(doc=4916,freq=2.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.5440089 = fieldWeight in 4916, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.078125 = fieldNorm(doc=4916)
      0.06359422 = weight(_text_:22 in 4916) [ClassicSimilarity], result of:
        0.06359422 = score(doc=4916,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.38690117 = fieldWeight in 4916, 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=4916)
  0.33333334 = coord(1/3)
    Date
    22. 7.2000 17:39:40
    Source
    Dokumente und Datenbanken in elektronischen Netzen: Tagungsberichte vom 6. und 7. Österreichischen Online-Informationstreffen bzw. vom 7. und 8. Österreichischen Dokumentartag, Schloß Seggau, Seggauberg bei Leibnitz, 26.-29. September 1995, Congresszentrum Igls bei Innsbruck, 21.-24. Oktober 1997. Hrsg.: E. Pipp
  6. Heery, R.: Information gateways : collaboration and content (2000) 0.04 
    0.04417502 = product of:
  0.13252506 = sum of:
    0.13252506 = sum of:
      0.08800911 = weight(_text_:datenbanken in 4866) [ClassicSimilarity], result of:
        0.08800911 = score(doc=4866,freq=2.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.38080624 = fieldWeight in 4866, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.0546875 = fieldNorm(doc=4866)
      0.044515952 = weight(_text_:22 in 4866) [ClassicSimilarity], result of:
        0.044515952 = score(doc=4866,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.2708308 = fieldWeight in 4866, 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=4866)
  0.33333334 = coord(1/3)
    Date
    22. 6.2002 19:38:54
    Theme
    Verteilte bibliographische Datenbanken
  7. Avrahami, T.T.; Yau, L.; Si, L.; Callan, J.P.: ¬The FedLemur project : Federated search in the real world (2006) 0.04 
    0.037864305 = product of:
  0.11359291 = sum of:
    0.11359291 = sum of:
      0.07543638 = weight(_text_:datenbanken in 5271) [ClassicSimilarity], result of:
        0.07543638 = score(doc=5271,freq=2.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.32640535 = fieldWeight in 5271, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046875 = fieldNorm(doc=5271)
      0.038156528 = weight(_text_:22 in 5271) [ClassicSimilarity], result of:
        0.038156528 = score(doc=5271,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.23214069 = fieldWeight in 5271, 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=5271)
  0.33333334 = coord(1/3)
    Date
    22. 7.2006 16:02:07
    Theme
    Verteilte bibliographische Datenbanken
  8. Research and advanced technology for digital libraries : 7th European conference, ECDL2003 Trondheim, Norway, August 17-22, 2003. Proceedings (2003) 0.03 
    0.032186598 = product of:
  0.09655979 = sum of:
    0.09655979 = sum of:
      0.0711221 = weight(_text_:datenbanken in 2426) [ClassicSimilarity], result of:
        0.0711221 = score(doc=2426,freq=4.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.30773792 = fieldWeight in 2426, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.03125 = fieldNorm(doc=2426)
      0.025437687 = weight(_text_:22 in 2426) [ClassicSimilarity], result of:
        0.025437687 = score(doc=2426,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.15476047 = fieldWeight in 2426, 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=2426)
  0.33333334 = coord(1/3)
    BK
    54.64 / Datenbanken
    Classification
    54.64 / Datenbanken
  9. Research and advanced technology for digital libraries : 10th European conference ; proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006 ; proceedings (2006) 0.03 
    0.032186598 = product of:
  0.09655979 = sum of:
    0.09655979 = sum of:
      0.0711221 = weight(_text_:datenbanken in 2428) [ClassicSimilarity], result of:
        0.0711221 = score(doc=2428,freq=4.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.30773792 = fieldWeight in 2428, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.03125 = fieldNorm(doc=2428)
      0.025437687 = weight(_text_:22 in 2428) [ClassicSimilarity], result of:
        0.025437687 = score(doc=2428,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.15476047 = fieldWeight in 2428, 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=2428)
  0.33333334 = coord(1/3)
    BK
    54.64 / Datenbanken
    Classification
    54.64 / Datenbanken
  10. Johnson, E.H.: Objects for distributed heterogeneous information retrieval (2000) 0.03 
    0.03155359 = product of:
  0.09466077 = sum of:
    0.09466077 = sum of:
      0.062863655 = weight(_text_:datenbanken in 6959) [ClassicSimilarity], result of:
        0.062863655 = score(doc=6959,freq=2.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.27200446 = fieldWeight in 6959, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.0390625 = fieldNorm(doc=6959)
      0.03179711 = weight(_text_:22 in 6959) [ClassicSimilarity], result of:
        0.03179711 = score(doc=6959,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.19345059 = fieldWeight in 6959, 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=6959)
  0.33333334 = coord(1/3)
    Date
    22. 9.1997 19:16:05
    Theme
    Verteilte bibliographische Datenbanken
  11. Managing cataloging and the organization of information : philosophies, practices and challenges at the onset of the 21st century (2000) 0.03 
    0.028163275 = product of:
  0.08448982 = sum of:
    0.08448982 = sum of:
      0.062231846 = weight(_text_:datenbanken in 238) [ClassicSimilarity], result of:
        0.062231846 = score(doc=238,freq=4.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.2692707 = fieldWeight in 238, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.02734375 = fieldNorm(doc=238)
      0.022257976 = weight(_text_:22 in 238) [ClassicSimilarity], result of:
        0.022257976 = score(doc=238,freq=2.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.1354154 = fieldWeight in 238, 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=238)
  0.33333334 = coord(1/3)
    Footnote
    Rez. in ZfBB 51(2004) H.1, S.54-55 (G. Pflug): "Unter dem wachsenden Einfluss der Informationstechnologie auf den Bibliotheksbereich nimmt die Katalogisierung eine Schlüsselstellung ein. Das vorliegende Werk gliedert sich in zwei Teile. Der erste Abschnitt ist mit »National Libraries« überschrieben, befasst sich jedoch nur mit der Library of Congress und der National Library of Canada. Ihm folgen Artikel über »Libraries around the world«. Dabei fälltjedoch auf, dass diese Studien zwar Bibliotheken in Großbritannien, Australien, Mittel- und Südamerika und selbst Afrika (Botswana) behandeln, nicht jedoch aus Kontinentaleuropa, trotz entsprechender Aktivitäten etwa in den Niederlanden, in Frankreich oder den deutschsprachigen Ländern. Nur DOBIS/LIBIS wird erwähnt, aber nur, weil es für kurze Zeit die kanadische Entwicklung beeinflusst hat. Im zweiten Teil kommen Katalogisierungsfachleute aus vier Spezial- und neun akademischen Bibliotheken - ausschließlich aus Nordamerika und Großbritannien - zu Wort. So enthält das Werk in 22 Beispielen Berichte über individuelle und regionale Lösungen. Dabei steht die Frage im Vordergrund, zu welchen Änderungen in der Katalogisierungs- und Sacherschließungspraxis die neuen elektronischen Techniken geführt haben. So streben z.B. die englischen Hochschulbibliotheken ein koordiniertes System an. Mit dem Übergang der British Library zu MARC 21 wird das Katalogsystem in Großbritannien nachhaltig beeinflusst - um nur zwei nahe liegende Beispiele zu nennen. Insgesamt werden drei Aspekte behandelt, die Automatisierungstechnik; die dabei einzusetzende Kooperation und das Outsourcing - nicht nur durch Übernahme von Daten anderer Bibliotheken oder durch Verbundsysteme, vor allem der Library of Congress, sondern auch durch Buchhandelsfirmen wie Blackwell North America Authority Control Service. In der Frage der Sacherschließung befassen sich die Beiträge mit den im amerikanischen Bereich üblichen Klassifikationssystemen, vor allem der Colon Classification, Dewey in seinen beiden Formen oder der Library of Congress Classification. Für die deutsche Diskussion sind diese Aspekte vor allem wegen des Übergangs der Deutschen Bibliothek in ihrer Nationalbibliografie zur DDC von großem Interesse (vgl. Magda Heiner-Freiling: Die DDC in der Deutschen Nationalbibliografie. In Dialog mit Bibliotheken. 15. 2003, Nr. 3, S. 8-13). Doch stellen auch die unterschiedlichen Überlegungen zur alphabetischen Katalogisierung, verbunden mit den da zugehörigen Datenbanken, einen interessanten Beitrag zur augenblicklichen Diskussion in Deutschland dar, da auch hier seit einigen Jahren die Katalogisierung nach RAK und ihre Ablösung eine lebhafte Diskussion ausgelöst hat, wie unter anderem der zusammenfassende Beitrag von Elisabeth Niggemann in: Dialog mit Bibliotheken (15. 2003, Nr. 2, S. 4-8) zeigt. Auch die angloamerikanischen und die mit ihnen zum Beispiel in Mexiko, Südamerika oder Australien verbundenen Bibliotheken - das zeigt das Buch deutlich - diskutieren die Frage der alphabetischen Katalogisierung kontrovers. So werden z.B. neben den dominanten AACR-Regeln mit ihrer Weiterentwicklung mehr als zehn andere Katalogisierungssysteme und rund 20 Online-Datenbanken behandelt. Damit liefert das Buch für die Diskussion in Deutschland und die anstehenden Entscheidungen in seiner Grundtendenz wie in den unterschiedlichen-auch widersprüchlichen-Aspekten dereinzelnen Beiträge wertvolle Anregungen."
  12. Visual interfaces to digital libraries : [extended papers presented at the first and second International Workshops on Visual Interfaces to Digital Libraries, held at the Joint Conference on Digital Libraries (JCDL) in 2001 and 2002] (2002) 0.03 
    0.026774108 = product of:
  0.080322325 = sum of:
    0.080322325 = sum of:
      0.05334158 = weight(_text_:datenbanken in 1784) [ClassicSimilarity], result of:
        0.05334158 = score(doc=1784,freq=4.0), product of:
          0.23111258 = queryWeight, product of:
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.046937786 = queryNorm
          0.23080343 = fieldWeight in 1784, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            4.9238067 = idf(docFreq=873, maxDocs=44218)
            0.0234375 = fieldNorm(doc=1784)
      0.026980743 = weight(_text_:22 in 1784) [ClassicSimilarity], result of:
        0.026980743 = score(doc=1784,freq=4.0), product of:
          0.16436812 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.046937786 = queryNorm
          0.16414827 = fieldWeight in 1784, product of:
            2.0 = tf(freq=4.0), with freq of:
              4.0 = termFreq=4.0
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.0234375 = fieldNorm(doc=1784)
  0.33333334 = coord(1/3)
    BK
    54.64 / Datenbanken
    Classification
    54.64 / Datenbanken
    Date
    22. 2.2003 17:25:39
    22. 3.2008 15:02:37
  13. Hogg, M.; Field, J.: Using Z39.50 to build a virtual union catalogue Music Libraries Online : a subject clump (2001) 0.03 
    0.025145462 = product of:
  0.07543638 = sum of:
    0.07543638 = product of:
      0.15087277 = sum of:
        0.15087277 = weight(_text_:datenbanken in 4879) [ClassicSimilarity], result of:
          0.15087277 = score(doc=4879,freq=2.0), product of:
            0.23111258 = queryWeight, product of:
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.046937786 = queryNorm
            0.6528107 = fieldWeight in 4879, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.09375 = fieldNorm(doc=4879)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Theme
    Verteilte bibliographische Datenbanken
  14. Arch-Int, N.; Sophatsathit, P.: ¬A semantic information gathering approach for heterogeneous information sources on WWW (2003) 0.03 
    0.025145462 = product of:
  0.07543638 = sum of:
    0.07543638 = product of:
      0.15087277 = sum of:
        0.15087277 = weight(_text_:datenbanken in 4694) [ClassicSimilarity], result of:
          0.15087277 = score(doc=4694,freq=2.0), product of:
            0.23111258 = queryWeight, product of:
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.046937786 = queryNorm
            0.6528107 = fieldWeight in 4694, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.09375 = fieldNorm(doc=4694)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Theme
    Verteilte bibliographische Datenbanken
  15. Hawking, D.; Robertson, S.: On collection size and retrieval effectiveness (2003) 0.02 
    0.023982882 = product of:
  0.07194865 = sum of:
    0.07194865 = product of:
      0.1438973 = sum of:
        0.1438973 = weight(_text_:22 in 4109) [ClassicSimilarity], result of:
          0.1438973 = score(doc=4109,freq=4.0), product of:
            0.16436812 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046937786 = queryNorm
            0.8754574 = fieldWeight in 4109, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.125 = fieldNorm(doc=4109)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    14. 8.2005 14:22:22
  16. Rijsbergen, K. van: ¬The geometry of information retrieval (2004) 0.02 
    0.023707367 = product of:
  0.0711221 = sum of:
    0.0711221 = product of:
      0.1422442 = sum of:
        0.1422442 = weight(_text_:datenbanken in 5459) [ClassicSimilarity], result of:
          0.1422442 = score(doc=5459,freq=4.0), product of:
            0.23111258 = queryWeight, product of:
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.046937786 = queryNorm
            0.61547583 = fieldWeight in 5459, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.0625 = fieldNorm(doc=5459)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    BK
    54.64 Datenbanken
    Classification
    54.64 Datenbanken
  17. Borlund, P.: Evaluation of interactive information retrieval systems (2000) 0.02 
    0.023707367 = product of:
  0.0711221 = sum of:
    0.0711221 = product of:
      0.1422442 = sum of:
        0.1422442 = weight(_text_:datenbanken in 2556) [ClassicSimilarity], result of:
          0.1422442 = score(doc=2556,freq=4.0), product of:
            0.23111258 = queryWeight, product of:
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.046937786 = queryNorm
            0.61547583 = fieldWeight in 2556, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.0625 = fieldNorm(doc=2556)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    BK
    54.64 / Datenbanken
    Classification
    54.64 / Datenbanken
  18. Buzydlowski, J.W.; White, H.D.; Lin, X.: Term Co-occurrence Analysis as an Interface for Digital Libraries (2002) 0.02 
    0.022029683 = product of:
  0.06608905 = sum of:
    0.06608905 = product of:
      0.1321781 = sum of:
        0.1321781 = weight(_text_:22 in 1339) [ClassicSimilarity], result of:
          0.1321781 = score(doc=1339,freq=6.0), product of:
            0.16436812 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046937786 = queryNorm
            0.804159 = fieldWeight in 1339, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.09375 = fieldNorm(doc=1339)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 2.2003 17:25:39
    22. 2.2003 18:16:22
  19. Hemminger, B.M.: Introduction to the special issue on bioinformatics (2005) 0.02 
    0.020985022 = product of:
  0.06295507 = sum of:
    0.06295507 = product of:
      0.12591013 = sum of:
        0.12591013 = weight(_text_:22 in 4189) [ClassicSimilarity], result of:
          0.12591013 = score(doc=4189,freq=4.0), product of:
            0.16436812 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.046937786 = queryNorm
            0.76602525 = fieldWeight in 4189, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.109375 = fieldNorm(doc=4189)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Date
    22. 7.2006 14:19:22
  20. Zass, E.: Informationssysteme und ihre Erschließung : Scifinder Scholar und Crossfire und Web of Science und ... - Luxus oder Notwendigkeit? (2008) 0.02 
    0.02074395 = product of:
  0.062231846 = sum of:
    0.062231846 = product of:
      0.12446369 = sum of:
        0.12446369 = weight(_text_:datenbanken in 1620) [ClassicSimilarity], result of:
          0.12446369 = score(doc=1620,freq=4.0), product of:
            0.23111258 = queryWeight, product of:
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.046937786 = queryNorm
            0.5385414 = fieldWeight in 1620, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.9238067 = idf(docFreq=873, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1620)
      0.5 = coord(1/2)
  0.33333334 = coord(1/3)
    Abstract
    Das Informationsangebot in der Chemie ist, im Unterschied etwa zur Biologie, fast völlig von kommerziellen Anbietern dominiert, deren elektronische Produkte vor allem einen zahlungskräftigen Industriemarkt bedienen. Das ist eine für Hochschulen problematische Situation, trotz zahl reicher "academic programs" für solche Datenbanken. Die Produzenten haben in den letzten Jah ren u.a. durch Erweiterung der inhaltlichen Erfassung, Erwerb weiterer Datenbanken und Optimierung ihrer Benutzeroberflächen für Endnutzer versucht, ihre Marktanteile zu vergrössern. Vor diesem Hintergrund stellt sich die Frage, ob nicht eine oder zwei dieser kostspieligen, umfangreichen Quellen für Endnutzer die wesentlichen Bedürfnisse im Bereich Sekundär/Tertiärliteratur abdecken kann. Aufgrund unserer langjährigen Rechercheerfahrung und von Datenbankvergleichen müssen wir diese Frage leider verneinen.

Authors

Languages

Types

  • a 588
  • m 82
  • el 53
  • s 41
  • b 24
  • x 3
  • r 2
  • i 1
  • n 1
  • More… Less…

Themes

Subjects

Classifications