Search (24 results, page 1 of 2)

  • × year_i:[2010 TO 2020}
  • × theme_ss:"Semantic Web"
  1. Call, A.; Gottlob, G.; Pieris, A.: ¬The return of the entity-relationship model : ontological query answering (2012) 0.01 
    0.009692165 = product of:
  0.05815299 = sum of:
    0.05815299 = weight(_text_:b in 434) [ClassicSimilarity], result of:
      0.05815299 = score(doc=434,freq=8.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.3914457 = fieldWeight in 434, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0390625 = fieldNorm(doc=434)
  0.16666667 = coord(1/6)
    Abstract
    The Entity-Relationship (ER) model is a fundamental formalism for conceptual modeling in database design; it was introduced by Chen in his milestone paper, and it is now widely used, being flexible and easily understood by practitioners. With the rise of the Semantic Web, conceptual modeling formalisms have gained importance again as ontology formalisms, in the Semantic Web parlance. Ontologies and conceptual models are aimed at representing, rather than the structure of data, the domain of interest, that is, the fragment of the real world that is being represented by the data and the schema. A prominent formalism for modeling ontologies are Description Logics (DLs), which are decidable fragments of first-order logic, particularly suitable for ontological modeling and querying. In particular, DL ontologies are sets of assertions describing sets of objects and (usually binary) relations among such sets, exactly in the same fashion as the ER model. Recently, research on DLs has been focusing on the problem of answering queries under ontologies, that is, given a query q, an instance B, and an ontology X, answering q under B and amounts to compute the answers that are logically entailed from B by using the assertions of X. In this context, where data size is usually large, a central issue the data complexity of query answering, i.e., the computational complexity with respect to the data set B only, while the ontology X and the query q are fixed.
  2. Dellschaft, K.; Hachenberg, C.: Repräsentation von Wissensorganisationssystemen im Semantic Web : ein Best Practice Guide (2011) 0.01 
    0.009594754 = product of:
  0.057568524 = sum of:
    0.057568524 = weight(_text_:b in 4782) [ClassicSimilarity], result of:
      0.057568524 = score(doc=4782,freq=4.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.3875115 = fieldWeight in 4782, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0546875 = fieldNorm(doc=4782)
  0.16666667 = coord(1/6)
    Abstract
    In diesem Dokument sollen Begriffe, Prinzipien und Methoden vorgestellt werden, die sich als hilfreich bei der Erstellung von Semantic Web konformen Repräsentationen von Wissensorganisationssystemen (KOS) erwiesen haben, wie z. B. Thesauri und Klassifikationssysteme. Das Dokument richtet sich an Organisationen wie z. B. Bibliotheken, die ihre traditionellen Wissensorganisationssysteme im Rahmen des Semantic Web veröffentlichen wollen. Die in diesem Dokument beschriebenen Vorgehensweisen und Prinzipien sind nicht als normativ anzusehen. Sie sollen nur dabei helfen, von bisher gemachten Erfahrungen zu profitieren und einen leichteren Einstieg in die wichtigsten Begriffichkeiten und Techniken des Semantic Web zu bekommen. An vielen Stellen wird zudem auf weiterführende Literatur zum Thema und auf relevante Standards und Spezifikationen aus dem Bereich des Semantic Web hingewiesen.
  3. Semantische Technologien : Grundlagen - Konzepte - Anwendungen (2012) 0.01 
    0.006784515 = product of:
  0.04070709 = sum of:
    0.04070709 = weight(_text_:b in 167) [ClassicSimilarity], result of:
      0.04070709 = score(doc=167,freq=8.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.27401197 = fieldWeight in 167, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.02734375 = fieldNorm(doc=167)
  0.16666667 = coord(1/6)
    Content
    Inhalt: 1. Einleitung (A. Dengel, A. Bernardi) 2. Wissensrepräsentation (A. Dengel, A. Bernardi, L. van Elst) 3. Semantische Netze, Thesauri und Topic Maps (O. Rostanin, G. Weber) 4. Das Ressource Description Framework (T. Roth-Berghofer) 5. Ontologien und Ontologie-Abgleich in verteilten Informationssystemen (L. van Elst) 6. Anfragesprachen und Reasoning (M. Sintek) 7. Linked Open Data, Semantic Web Datensätze (G.A. Grimnes, O. Hartig, M. Kiesel, M. Liwicki) 8. Semantik in der Informationsextraktion (B. Adrian, B. Endres-Niggemeyer) 9. Semantische Suche (K. Schumacher, B. Forcher, T. Tran) 10. Erklärungsfähigkeit semantischer Systeme (B. Forcher, T. Roth-Berghofer, S. Agne) 11. Semantische Webservices zur Steuerung von Prooduktionsprozessen (M. Loskyll, J. Schlick, S. Hodeck, L. Ollinger, C. Maxeiner) 12. Wissensarbeit am Desktop (S. Schwarz, H. Maus, M. Kiesel, L. Sauermann) 13. Semantische Suche für medizinische Bilder (MEDICO) (M. Möller, M. Sintek) 14. Semantische Musikempfehlungen (S. Baumann, A. Passant) 15. Optimierung von Instandhaltungsprozessen durch Semantische Technologien (P. Stephan, M. Loskyll, C. Stahl, J. Schlick)
  4. Spree, U.; Feißt, N.; Lühr, A.; Piesztal, B.; Schroeder, N.; Wollschläger, P.: Semantic search : State-of-the-Art-Überblick zu semantischen Suchlösungen im WWW (2011) 0.01 
    0.006784515 = product of:
  0.04070709 = sum of:
    0.04070709 = weight(_text_:b in 345) [ClassicSimilarity], result of:
      0.04070709 = score(doc=345,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.27401197 = fieldWeight in 345, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0546875 = fieldNorm(doc=345)
  0.16666667 = coord(1/6)
  5. Vatant, B.: Porting library vocabularies to the Semantic Web, and back : a win-win round trip (2010) 0.01 
    0.0058152988 = product of:
  0.03489179 = sum of:
    0.03489179 = weight(_text_:b in 3968) [ClassicSimilarity], result of:
      0.03489179 = score(doc=3968,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.23486741 = fieldWeight in 3968, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.046875 = fieldNorm(doc=3968)
  0.16666667 = coord(1/6)
  6. Glimm, B.; Hogan, A.; Krötzsch, M.; Polleres, A.: OWL: Yet to arrive on the Web of Data? (2012) 0.01 
    0.0058152988 = product of:
  0.03489179 = sum of:
    0.03489179 = weight(_text_:b in 4798) [ClassicSimilarity], result of:
      0.03489179 = score(doc=4798,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.23486741 = fieldWeight in 4798, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.046875 = fieldNorm(doc=4798)
  0.16666667 = coord(1/6)
  7. Zapilko, B.; Sure, Y.: Neue Möglichkeiten für die Wissensorganisation durch die Kombination von Digital Library Verfahren mit Standards des Semantic Web (2013) 0.01 
    0.0058152988 = product of:
  0.03489179 = sum of:
    0.03489179 = weight(_text_:b in 936) [ClassicSimilarity], result of:
      0.03489179 = score(doc=936,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.23486741 = fieldWeight in 936, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.046875 = fieldNorm(doc=936)
  0.16666667 = coord(1/6)
  8. Maltese, V.; Farazi, F.: Towards the integration of knowledge organization systems with the linked data cloud (2011) 0.00 
    0.0048460825 = product of:
  0.029076494 = sum of:
    0.029076494 = weight(_text_:b in 4815) [ClassicSimilarity], result of:
      0.029076494 = score(doc=4815,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.19572285 = fieldWeight in 4815, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0390625 = fieldNorm(doc=4815)
  0.16666667 = coord(1/6)
    Abstract
    In representing the shared view of all the people involved, building a knowledge organization system (KOS) from scratch is extremely costly, and it is therefore fundamental to reuse existing resources. This can be done by progressively extending the KOS with knowledge coming from similar KOSs and by promoting interoperability among them. The linked data initiative is indeed encouraging people to share and integrate their datasets into a giant network of interconnected resources. This enables different applications to interoperate and share their data. The integration should take into account the purpose of the datasets, however, and make explicit the semantics. In fact, the difference in the purpose is reflected in the difference in the semantics. With this paper we (a) highlight the potential problems that may arise by not taking into account purpose and semantics; (b) make clear how the difference in the purpose is reflected in totally different semantics and (c) provide an algorithm to translate from one semantics into another as a preliminary step towards the integration of ontologies designed for different purposes. This will allow reusing the ontologies even in contexts different from those in which they were designed.
  9. Djioua, B.; Desclés, J.-P.; Alrahabi, M.: Searching and mining with semantic categories (2012) 0.00 
    0.0048460825 = product of:
  0.029076494 = sum of:
    0.029076494 = weight(_text_:b in 99) [ClassicSimilarity], result of:
      0.029076494 = score(doc=99,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.19572285 = fieldWeight in 99, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0390625 = fieldNorm(doc=99)
  0.16666667 = coord(1/6)
  10. Maltese, V.; Farazi, F.: Towards the integration of knowledge organization systems with the linked data cloud (2011) 0.00 
    0.0048460825 = product of:
  0.029076494 = sum of:
    0.029076494 = weight(_text_:b in 602) [ClassicSimilarity], result of:
      0.029076494 = score(doc=602,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.19572285 = fieldWeight in 602, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.0390625 = fieldNorm(doc=602)
  0.16666667 = coord(1/6)
    Abstract
    In representing the shared view of all the people involved, building a Knowledge Organization System (KOS) from scratch is extremely costly, and it is therefore fundamental to reuse existing resources. This can be done by progressively extending the KOS with knowledge coming from similar KOS and by promoting interoperability among them. The linked data initiative is indeed fostering people to share and integrate their datasets into a giant network of interconnected resources. This enables different applications to interoperate and share their data. However, the integration should take into account the purpose of the datasets and make explicit the semantics. In fact, the difference in the purpose is reflected in the difference in the semantics. With this paper we (a) highlight the potential problems that may arise by not taking into account purpose and semantics, (b) make clear how the difference in the purpose is reflected in totally different semantics and (c) provide an algorithm to translate from one semantic into another as a preliminary step towards the integration of ontologies designed for different purposes. This will allow reusing the ontologies even in contexts different from those in which they were designed.
  11. Papadakis, I. et al.: Highlighting timely information in libraries through social and semantic Web technologies (2016) 0.00 
    0.0047342135 = product of:
  0.028405279 = sum of:
    0.028405279 = product of:
      0.056810558 = sum of:
        0.056810558 = weight(_text_:22 in 2090) [ClassicSimilarity], result of:
          0.056810558 = score(doc=2090,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.38690117 = fieldWeight in 2090, 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=2090)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  12. Corporate Semantic Web : wie semantische Anwendungen in Unternehmen Nutzen stiften (2015) 0.00 
    0.0038768656 = product of:
  0.023261193 = sum of:
    0.023261193 = weight(_text_:b in 2246) [ClassicSimilarity], result of:
      0.023261193 = score(doc=2246,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.15657827 = fieldWeight in 2246, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.03125 = fieldNorm(doc=2246)
  0.16666667 = coord(1/6)
    Editor
    Ege, B. et al.
  13. Eckert, K.: SKOS: eine Sprache für die Übertragung von Thesauri ins Semantic Web (2011) 0.00 
    0.0037873704 = product of:
  0.022724222 = sum of:
    0.022724222 = product of:
      0.045448445 = sum of:
        0.045448445 = weight(_text_:22 in 4331) [ClassicSimilarity], result of:
          0.045448445 = score(doc=4331,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.30952093 = fieldWeight in 4331, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0625 = fieldNorm(doc=4331)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Date
    15. 3.2011 19:21:22
  14. Metadata and semantics research : 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings (2016) 0.00 
    0.003313949 = product of:
  0.019883694 = sum of:
    0.019883694 = product of:
      0.03976739 = sum of:
        0.03976739 = weight(_text_:22 in 3283) [ClassicSimilarity], result of:
          0.03976739 = score(doc=3283,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.2708308 = fieldWeight in 3283, 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=3283)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
  15. Hollink, L.; Assem, M. van: Estimating the relevance of search results in the Culture-Web : a study of semantic distance measures (2010) 0.00 
    0.0028405278 = product of:
  0.017043166 = sum of:
    0.017043166 = product of:
      0.03408633 = sum of:
        0.03408633 = weight(_text_:22 in 4649) [ClassicSimilarity], result of:
          0.03408633 = score(doc=4649,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.23214069 = fieldWeight in 4649, 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=4649)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Date
    26.12.2011 13:40:22
  16. Hooland, S. van; Verborgh, R.; Wilde, M. De; Hercher, J.; Mannens, E.; Wa, R.Van de: Evaluating the success of vocabulary reconciliation for cultural heritage collections (2013) 0.00 
    0.0028405278 = product of:
  0.017043166 = sum of:
    0.017043166 = product of:
      0.03408633 = sum of:
        0.03408633 = weight(_text_:22 in 662) [ClassicSimilarity], result of:
          0.03408633 = score(doc=662,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.23214069 = fieldWeight in 662, 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=662)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Date
    22. 3.2013 19:29:20
  17. Prud'hommeaux, E.; Gayo, E.: RDF ventures to boldly meet your most pedestrian needs (2015) 0.00 
    0.0028405278 = product of:
  0.017043166 = sum of:
    0.017043166 = product of:
      0.03408633 = sum of:
        0.03408633 = weight(_text_:22 in 2024) [ClassicSimilarity], result of:
          0.03408633 = score(doc=2024,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.23214069 = fieldWeight in 2024, 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=2024)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Source
    Bulletin of the Association for Information Science and Technology. 41(2015) no.4, S.18-22
  18. Firnkes, M.: Schöne neue Welt : der Content der Zukunft wird von Algorithmen bestimmt (2015) 0.00 
    0.0028405278 = product of:
  0.017043166 = sum of:
    0.017043166 = product of:
      0.03408633 = sum of:
        0.03408633 = weight(_text_:22 in 2118) [ClassicSimilarity], result of:
          0.03408633 = score(doc=2118,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.23214069 = fieldWeight in 2118, 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=2118)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Date
    5. 7.2015 22:02:31
  19. Keyser, P. de: Indexing : from thesauri to the Semantic Web (2012) 0.00 
    0.0028405278 = product of:
  0.017043166 = sum of:
    0.017043166 = product of:
      0.03408633 = sum of:
        0.03408633 = weight(_text_:22 in 3197) [ClassicSimilarity], result of:
          0.03408633 = score(doc=3197,freq=2.0), product of:
            0.1468348 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.041930884 = queryNorm
            0.23214069 = fieldWeight in 3197, 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=3197)
      0.5 = coord(1/2)
  0.16666667 = coord(1/6)
    Date
    24. 8.2016 14:03:22
  20. Borst, T.; Fingerle, B.; Neubert, J.; Seiler, A.: Auf dem Weg in das Semantic Web : Anwendungsbeispiele und Lösungsszenarien in Bibliotheken / Eine Veranstaltung von hbz und ZBW (2010) 0.00 
    0.0024230413 = product of:
  0.014538247 = sum of:
    0.014538247 = weight(_text_:b in 4398) [ClassicSimilarity], result of:
      0.014538247 = score(doc=4398,freq=2.0), product of:
        0.14855953 = queryWeight, product of:
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.041930884 = queryNorm
        0.097861424 = fieldWeight in 4398, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.542962 = idf(docFreq=3476, maxDocs=44218)
          0.01953125 = fieldNorm(doc=4398)
  0.16666667 = coord(1/6)

Authors

Languages

  • e 16
  • d 8

Types

Themes

Subjects

Classifications