Document (#36259)

Author
Öttl, S.
Streiff, D.
Stettler, N.
Studer, M.
Title
Aufbau einer Testumgebung zur Ermittlung signifikanter Parameter bei der Ontologieabfrage
Source
Semantic web & linked data: Elemente zukünftiger Informationsinfrastrukturen ; 1. DGI-Konferenz ; 62. Jahrestagung der DGI ; Frankfurt am Main, 7. - 9. Oktober 2010 ; Proceedings / Deutsche Gesellschaft für Informationswissenschaft und Informationspraxis. Hrsg.: M. Ockenfeld
Imprint
Frankfurt. / M. : DGI
Year
2010
Pages
S.21-32
Series
Tagungen der Deutschen Gesellschaft für Informationswissenschaft und Informationspraxis ; Bd. 14) (DGI-Konferenz ; 1
Abstract
Der Einsatz von semantischen Technologien ist mittlerweile ein etabliertes Mittel zur Optimierung von Information-Retrieval-Systemen. Obwohl der Einsatz von Ontologien für verschiedene Anwendungsbereiche wie beispielsweise zur Query-Expansion (Bhogal et al. 2007), zur Strukturierung von Benutzeroberflächen bzw. zur Dialoggestaltung (z. B. Garcia & Sicilia 2003; Liu et al. 2005; Lopez et al. 2006; Paulheim 2009; Paulheim & Probst 2010), in Recommendersystemen (z. B. Taehee et al. 2006; Cantador et al. 2008; Middleton et al. 2001; Middleton et al. 2009) usw. rege erforscht wird, gibt es noch kaum Bestrebungen, die einzelnen Abfragemethodiken für Ontologien systematisch zu untersuchen. Bei der Abfrage von Ontologien geht es in erster Linie darum, Zusammenhänge zwischen Begriffen zu ermitteln, indem hierarchische (Classes und Individuals), semantische (Object Properties) und ergänzende (Datatype Properties) Beziehungen abgefragt oder logische Verknüpfungen abgeleitet werden. Hierbei werden sogenannte Reasoner für die Ableitungen und als Abfragesprache SPARQL (seltener auch XPath) eingesetzt. Ein weiterer, weniger oft eingesetzter, vielversprechender Ansatz findet sich bei Hoser et al. (2006) und Weng & Chang (2008), die Techniken der Sozialen Netzwerkanalyse zur Auswertung von Ontologien miteinsetzen (Semantic Network Analysis). Um die Abfrage von Ontologien sowie Kombinationen der unterschiedlichen Abfragemöglichkeiten systematisch untersuchen zu können, wurde am SII eine entsprechende Testumgebung entwickelt, die in diesem Beitrag genauer vorgestellt werden soll.
Theme
Wissensrepräsentation

Similar documents (author)

  1. Studer, R.; Studer, H.-P.; Studer, A.: Semantisches Knowledge Retrieval (2001) 6.03
    6.0255556 = sum of:
      6.0255556 = weight(author_txt:studer in 787) [ClassicSimilarity], result of:
        6.0255556 = fieldWeight in 787, product of:
          1.7320508 = tf(freq=3.0), with freq of:
            3.0 = termFreq=3.0
          9.27695 = idf(docFreq=10, maxDocs=43254)
          0.375 = fieldNorm(doc=787)
    
  2. Dietlein, S.; Studer, R.: Knowledge Management @ work (2000) 4.64
    4.638475 = sum of:
      4.638475 = weight(author_txt:studer in 6958) [ClassicSimilarity], result of:
        4.638475 = fieldWeight in 6958, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.27695 = idf(docFreq=10, maxDocs=43254)
          0.5 = fieldNorm(doc=6958)
    
  3. Kottmann, N.; Studer, T.: Improving semantic query answering (2006) 4.64
    4.638475 = sum of:
      4.638475 = weight(author_txt:studer in 5980) [ClassicSimilarity], result of:
        4.638475 = fieldWeight in 5980, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.27695 = idf(docFreq=10, maxDocs=43254)
          0.5 = fieldNorm(doc=5980)
    
  4. Ehrig, M.; Studer, R.: Wissensvernetzung durch Ontologien (2006) 4.64
    4.638475 = sum of:
      4.638475 = weight(author_txt:studer in 902) [ClassicSimilarity], result of:
        4.638475 = fieldWeight in 902, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.27695 = idf(docFreq=10, maxDocs=43254)
          0.5 = fieldNorm(doc=902)
    
  5. Sure, Y.; Studer, R.: ¬A methodology for ontology-based knowledge management (2004) 4.64
    4.638475 = sum of:
      4.638475 = weight(author_txt:studer in 865) [ClassicSimilarity], result of:
        4.638475 = fieldWeight in 865, product of:
          1.0 = tf(freq=1.0), with freq of:
            1.0 = termFreq=1.0
          9.27695 = idf(docFreq=10, maxDocs=43254)
          0.5 = fieldNorm(doc=865)
    

Similar documents (content)

  1. Mainz, I.; Weller, K.; Paulsen, I.; Mainz, D.; Kohl, J.; Haeseler, A. von: Ontoverse : collaborative ontology engineering for the life sciences (2008) 0.12
    0.11974422 = sum of:
      0.11974422 = product of:
        0.99786854 = sum of:
          0.030755144 = weight(abstract_txt:werden in 3595) [ClassicSimilarity], result of:
            0.030755144 = score(doc=3595,freq=1.0), product of:
              0.06989121 = queryWeight, product of:
                1.2168335 = boost
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.01631572 = queryNorm
              0.4400431 = fieldWeight in 3595, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.125 = fieldNorm(doc=3595)
          0.09209483 = weight(abstract_txt:einsatz in 3595) [ClassicSimilarity], result of:
            0.09209483 = score(doc=3595,freq=1.0), product of:
              0.12684415 = queryWeight, product of:
                1.3384725 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.01631572 = queryNorm
              0.7260471 = fieldWeight in 3595, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.125 = fieldNorm(doc=3595)
          0.87501854 = weight(abstract_txt:ontologien in 3595) [ClassicSimilarity], result of:
            0.87501854 = score(doc=3595,freq=3.0), product of:
              0.53546536 = queryWeight, product of:
                4.348204 = boost
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.01631572 = queryNorm
              1.6341273 = fieldWeight in 3595, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.125 = fieldNorm(doc=3595)
        0.12 = coord(3/25)
    
  2. Harbig, D.; Schneider, R.: Ontology Learning im Rahmen von MyShelf (2006) 0.10
    0.104776196 = sum of:
      0.104776196 = product of:
        0.873135 = sum of:
          0.02691075 = weight(abstract_txt:werden in 782) [ClassicSimilarity], result of:
            0.02691075 = score(doc=782,freq=1.0), product of:
              0.06989121 = queryWeight, product of:
                1.2168335 = boost
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.01631572 = queryNorm
              0.38503772 = fieldWeight in 782, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.109375 = fieldNorm(doc=782)
          0.08058298 = weight(abstract_txt:einsatz in 782) [ClassicSimilarity], result of:
            0.08058298 = score(doc=782,freq=1.0), product of:
              0.12684415 = queryWeight, product of:
                1.3384725 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.01631572 = queryNorm
              0.6352912 = fieldWeight in 782, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.109375 = fieldNorm(doc=782)
          0.7656412 = weight(abstract_txt:ontologien in 782) [ClassicSimilarity], result of:
            0.7656412 = score(doc=782,freq=3.0), product of:
              0.53546536 = queryWeight, product of:
                4.348204 = boost
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.01631572 = queryNorm
              1.4298613 = fieldWeight in 782, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.109375 = fieldNorm(doc=782)
        0.12 = coord(3/25)
    
  3. Boltzendahl, S.: Ontologien in digitalen Bibliotheken unter dem Schwerpunkt Inhaltserschliessung und Recherche (2004) 0.09
    0.08898909 = sum of:
      0.08898909 = product of:
        0.7415757 = sum of:
          0.036471114 = weight(abstract_txt:werden in 3415) [ClassicSimilarity], result of:
            0.036471114 = score(doc=3415,freq=10.0), product of:
              0.06989121 = queryWeight, product of:
                1.2168335 = boost
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.01631572 = queryNorm
              0.5218269 = fieldWeight in 3415, product of:
                3.1622777 = tf(freq=10.0), with freq of:
                  10.0 = termFreq=10.0
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.046875 = fieldNorm(doc=3415)
          0.048840657 = weight(abstract_txt:einsatz in 3415) [ClassicSimilarity], result of:
            0.048840657 = score(doc=3415,freq=2.0), product of:
              0.12684415 = queryWeight, product of:
                1.3384725 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.01631572 = queryNorm
              0.3850446 = fieldWeight in 3415, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.046875 = fieldNorm(doc=3415)
          0.65626395 = weight(abstract_txt:ontologien in 3415) [ClassicSimilarity], result of:
            0.65626395 = score(doc=3415,freq=12.0), product of:
              0.53546536 = queryWeight, product of:
                4.348204 = boost
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.01631572 = queryNorm
              1.2255955 = fieldWeight in 3415, product of:
                3.4641016 = tf(freq=12.0), with freq of:
                  12.0 = termFreq=12.0
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.046875 = fieldNorm(doc=3415)
        0.12 = coord(3/25)
    
  4. Hermans, J.: Ontologiebasiertes Information Retrieval für das Wissensmanagement (2008) 0.08
    0.07840379 = sum of:
      0.07840379 = product of:
        0.4900237 = sum of:
          0.021747168 = weight(abstract_txt:werden in 2507) [ClassicSimilarity], result of:
            0.021747168 = score(doc=2507,freq=2.0), product of:
              0.06989121 = queryWeight, product of:
                1.2168335 = boost
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.01631572 = queryNorm
              0.31115744 = fieldWeight in 2507, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.0625 = fieldNorm(doc=2507)
          0.046047416 = weight(abstract_txt:einsatz in 2507) [ClassicSimilarity], result of:
            0.046047416 = score(doc=2507,freq=1.0), product of:
              0.12684415 = queryWeight, product of:
                1.3384725 = boost
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.01631572 = queryNorm
              0.36302355 = fieldWeight in 2507, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                5.808377 = idf(docFreq=352, maxDocs=43254)
                0.0625 = fieldNorm(doc=2507)
          0.0650043 = weight(abstract_txt:2008 in 2507) [ClassicSimilarity], result of:
            0.0650043 = score(doc=2507,freq=1.0), product of:
              0.15962283 = queryWeight, product of:
                1.5014875 = boost
                6.5157895 = idf(docFreq=173, maxDocs=43254)
                0.01631572 = queryNorm
              0.40723684 = fieldWeight in 2507, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                6.5157895 = idf(docFreq=173, maxDocs=43254)
                0.0625 = fieldNorm(doc=2507)
          0.35722482 = weight(abstract_txt:ontologien in 2507) [ClassicSimilarity], result of:
            0.35722482 = score(doc=2507,freq=2.0), product of:
              0.53546536 = queryWeight, product of:
                4.348204 = boost
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.01631572 = queryNorm
              0.66712964 = fieldWeight in 2507, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.0625 = fieldNorm(doc=2507)
        0.16 = coord(4/25)
    
  5. Stuckenschmidt, H.: Ontologien : Konzepte, Technologien und Anwendungen (2009) 0.07
    0.072461896 = sum of:
      0.072461896 = product of:
        0.9057737 = sum of:
          0.030755144 = weight(abstract_txt:werden in 1163) [ClassicSimilarity], result of:
            0.030755144 = score(doc=1163,freq=1.0), product of:
              0.06989121 = queryWeight, product of:
                1.2168335 = boost
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.01631572 = queryNorm
              0.4400431 = fieldWeight in 1163, product of:
                1.0 = tf(freq=1.0), with freq of:
                  1.0 = termFreq=1.0
                3.5203447 = idf(docFreq=3478, maxDocs=43254)
                0.125 = fieldNorm(doc=1163)
          0.87501854 = weight(abstract_txt:ontologien in 1163) [ClassicSimilarity], result of:
            0.87501854 = score(doc=1163,freq=3.0), product of:
              0.53546536 = queryWeight, product of:
                4.348204 = boost
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.01631572 = queryNorm
              1.6341273 = fieldWeight in 1163, product of:
                1.7320508 = tf(freq=3.0), with freq of:
                  3.0 = termFreq=3.0
                7.5477104 = idf(docFreq=61, maxDocs=43254)
                0.125 = fieldNorm(doc=1163)
        0.08 = coord(2/25)