Search (177 results, page 1 of 9)

  • × theme_ss:"Wissensrepräsentation"
  1. Boteram, F.: Semantische Relationen in Dokumentationssprachen : vom Thesaurus zum semantischen Netz (2010) 0.07
    0.06640193 = product of:
      0.13280386 = sum of:
        0.13280386 = sum of:
          0.035058815 = weight(_text_:j in 4792) [ClassicSimilarity], result of:
            0.035058815 = score(doc=4792,freq=2.0), product of:
              0.14266226 = queryWeight, product of:
                3.1774964 = idf(docFreq=5010, maxDocs=44218)
                0.044897694 = queryNorm
              0.24574696 = fieldWeight in 4792, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.1774964 = idf(docFreq=5010, maxDocs=44218)
                0.0546875 = fieldNorm(doc=4792)
          0.055163912 = weight(_text_:f in 4792) [ClassicSimilarity], result of:
            0.055163912 = score(doc=4792,freq=2.0), product of:
              0.1789526 = queryWeight, product of:
                3.985786 = idf(docFreq=2232, maxDocs=44218)
                0.044897694 = queryNorm
              0.3082599 = fieldWeight in 4792, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.985786 = idf(docFreq=2232, maxDocs=44218)
                0.0546875 = fieldNorm(doc=4792)
          0.042581122 = weight(_text_:22 in 4792) [ClassicSimilarity], result of:
            0.042581122 = score(doc=4792,freq=2.0), product of:
              0.15722407 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.044897694 = queryNorm
              0.2708308 = fieldWeight in 4792, 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=4792)
      0.5 = coord(1/2)
    
    Source
    Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
  2. Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019) 0.06
    0.063498884 = sum of:
      0.05348208 = product of:
        0.21392833 = sum of:
          0.21392833 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
            0.21392833 = score(doc=400,freq=2.0), product of:
              0.38064316 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.044897694 = queryNorm
              0.56201804 = fieldWeight in 400, 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=400)
        0.25 = coord(1/4)
      0.010016805 = product of:
        0.030050414 = sum of:
          0.030050414 = weight(_text_:j in 400) [ClassicSimilarity], result of:
            0.030050414 = score(doc=400,freq=2.0), product of:
              0.14266226 = queryWeight, product of:
                3.1774964 = idf(docFreq=5010, maxDocs=44218)
                0.044897694 = queryNorm
              0.21064025 = fieldWeight in 400, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.1774964 = idf(docFreq=5010, maxDocs=44218)
                0.046875 = fieldNorm(doc=400)
        0.33333334 = coord(1/3)
    
    Content
    Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
  3. Drewer, P.; Massion, F; Pulitano, D: Was haben Wissensmodellierung, Wissensstrukturierung, künstliche Intelligenz und Terminologie miteinander zu tun? (2017) 0.05
    0.04654526 = product of:
      0.09309052 = sum of:
        0.09309052 = product of:
          0.13963577 = sum of:
            0.078805596 = weight(_text_:f in 5576) [ClassicSimilarity], result of:
              0.078805596 = score(doc=5576,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.4403713 = fieldWeight in 5576, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.078125 = fieldNorm(doc=5576)
            0.06083018 = weight(_text_:22 in 5576) [ClassicSimilarity], result of:
              0.06083018 = score(doc=5576,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.38690117 = fieldWeight in 5576, 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=5576)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    13.12.2017 14:17:22
  4. Davies, J.; Fensel, D.; Harmelen, F. van: Conclusions: ontology-driven knowledge management : towards the Semantic Web? (2004) 0.04
    0.039902695 = product of:
      0.07980539 = sum of:
        0.07980539 = product of:
          0.119708076 = sum of:
            0.056663603 = weight(_text_:j in 4407) [ClassicSimilarity], result of:
              0.056663603 = score(doc=4407,freq=4.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.39718705 = fieldWeight in 4407, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4407)
            0.06304447 = weight(_text_:f in 4407) [ClassicSimilarity], result of:
              0.06304447 = score(doc=4407,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.35229704 = fieldWeight in 4407, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4407)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Towards the semantic Web: ontology-driven knowledge management. Eds.: J. Davies, u.a
  5. Giunchiglia, F.; Villafiorita, A.; Walsh, T.: Theories of abstraction (1997) 0.04
    0.037236206 = product of:
      0.07447241 = sum of:
        0.07447241 = product of:
          0.11170861 = sum of:
            0.06304447 = weight(_text_:f in 4476) [ClassicSimilarity], result of:
              0.06304447 = score(doc=4476,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.35229704 = fieldWeight in 4476, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4476)
            0.04866414 = weight(_text_:22 in 4476) [ClassicSimilarity], result of:
              0.04866414 = score(doc=4476,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.30952093 = fieldWeight in 4476, 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=4476)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    1.10.2018 14:13:22
  6. Nielsen, M.: Neuronale Netze : Alpha Go - Computer lernen Intuition (2018) 0.04
    0.0369714 = product of:
      0.0739428 = sum of:
        0.0739428 = product of:
          0.1109142 = sum of:
            0.05008402 = weight(_text_:j in 4523) [ClassicSimilarity], result of:
              0.05008402 = score(doc=4523,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.35106707 = fieldWeight in 4523, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4523)
            0.06083018 = weight(_text_:22 in 4523) [ClassicSimilarity], result of:
              0.06083018 = score(doc=4523,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.38690117 = fieldWeight in 4523, 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=4523)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Content
    Vgl. auch den Beitrag: Sokol, J.: Spielend lernen. In: Spektrum der Wissenschaft. 2018, H.11, S.72-76.
    Source
    Spektrum der Wissenschaft. 2018, H.1, S.22-27
  7. Fensel, D.; Staab, S.; Studer, R.; Harmelen, F. van; Davies, J.: ¬A future perspective : exploiting peer-to-peer and the Semantic Web for knowledge management (2004) 0.03
    0.03491486 = product of:
      0.06982972 = sum of:
        0.06982972 = product of:
          0.10474457 = sum of:
            0.049580652 = weight(_text_:j in 2262) [ClassicSimilarity], result of:
              0.049580652 = score(doc=2262,freq=4.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.34753868 = fieldWeight in 2262, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2262)
            0.055163912 = weight(_text_:f in 2262) [ClassicSimilarity], result of:
              0.055163912 = score(doc=2262,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.3082599 = fieldWeight in 2262, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=2262)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Towards the semantic Web: ontology-driven knowledge management. Eds.: J. Davies, u.a
  8. Boteram, F.; Gödert, W.; Hubrich, J.: Semantic interoperability and retrieval paradigms (2010) 0.03
    0.034370564 = product of:
      0.06874113 = sum of:
        0.06874113 = product of:
          0.10311169 = sum of:
            0.04006722 = weight(_text_:j in 3362) [ClassicSimilarity], result of:
              0.04006722 = score(doc=3362,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.28085366 = fieldWeight in 3362, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3362)
            0.06304447 = weight(_text_:f in 3362) [ClassicSimilarity], result of:
              0.06304447 = score(doc=3362,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.35229704 = fieldWeight in 3362, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3362)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  9. Qin, J.: ¬A relation typology in knowledge organization systems : case studies in the research data management domain (2018) 0.03
    0.034370564 = product of:
      0.06874113 = sum of:
        0.06874113 = product of:
          0.10311169 = sum of:
            0.04006722 = weight(_text_:j in 4773) [ClassicSimilarity], result of:
              0.04006722 = score(doc=4773,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.28085366 = fieldWeight in 4773, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4773)
            0.06304447 = weight(_text_:f in 4773) [ClassicSimilarity], result of:
              0.06304447 = score(doc=4773,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.35229704 = fieldWeight in 4773, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4773)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Challenges and opportunities for knowledge organization in the digital age: proceedings of the Fifteenth International ISKO Conference, 9-11 July 2018, Porto, Portugal / organized by: International Society for Knowledge Organization (ISKO), ISKO Spain and Portugal Chapter, University of Porto - Faculty of Arts and Humanities, Research Centre in Communication, Information and Digital Culture (CIC.digital) - Porto. Eds.: F. Ribeiro u. M.E. Cerveira
  10. Assem, M. van; Rijgersberg, H.; Wigham, M.; Top, J.: Converting and annotating quantitative data tables (2010) 0.03
    0.031096553 = product of:
      0.062193107 = sum of:
        0.062193107 = product of:
          0.09328966 = sum of:
            0.02504201 = weight(_text_:j in 4705) [ClassicSimilarity], result of:
              0.02504201 = score(doc=4705,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.17553353 = fieldWeight in 4705, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4705)
            0.068247646 = weight(_text_:f in 4705) [ClassicSimilarity], result of:
              0.068247646 = score(doc=4705,freq=6.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.38137275 = fieldWeight in 4705, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4705)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Abstract
    Companies, governmental agencies and scientists produce a large amount of quantitative (research) data, consisting of measurements ranging from e.g. the surface temperatures of an ocean to the viscosity of a sample of mayonnaise. Such measurements are stored in tables in e.g. spreadsheet files and research reports. To integrate and reuse such data, it is necessary to have a semantic description of the data. However, the notation used is often ambiguous, making automatic interpretation and conversion to RDF or other suitable format diffiult. For example, the table header cell "f(Hz)" refers to frequency measured in Hertz, but the symbol "f" can also refer to the unit farad or the quantities force or luminous flux. Current annotation tools for this task either work on less ambiguous data or perform a more limited task. We introduce new disambiguation strategies based on an ontology, which allows to improve performance on "sloppy" datasets not yet targeted by existing systems.
    Source
    The Semantic Web - ISWC 2010. 9th International Semantic Web Conference, ISWC 2010, Shanghai, China, November 7-11, 2010, Revised Selected Papers, Part I. Eds.: Peter F. Patel-Schneider et al
  11. Assem, M. van; Menken, M.R.; Schreiber, G.; Wielemaker, J.; Wielinga, B.: ¬A method for converting thesauri to RDF/OWL (2004) 0.03
    0.030074244 = product of:
      0.06014849 = sum of:
        0.06014849 = product of:
          0.09022273 = sum of:
            0.035058815 = weight(_text_:j in 4644) [ClassicSimilarity], result of:
              0.035058815 = score(doc=4644,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.24574696 = fieldWeight in 4644, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4644)
            0.055163912 = weight(_text_:f in 4644) [ClassicSimilarity], result of:
              0.055163912 = score(doc=4644,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.3082599 = fieldWeight in 4644, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4644)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    Proceedings of the 3rd International Semantic Web Conference (ISWC'04). Eds. D. Plexousakis and F. van Harmelen
  12. Bechhofer, S.; Harmelen, F. van; Hendler, J.; Horrocks, I.; McGuinness, D.L.; Patel-Schneider, P.F.; Stein, L.A.: OWL Web Ontology Language Reference (2004) 0.03
    0.030074244 = product of:
      0.06014849 = sum of:
        0.06014849 = product of:
          0.09022273 = sum of:
            0.035058815 = weight(_text_:j in 4684) [ClassicSimilarity], result of:
              0.035058815 = score(doc=4684,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.24574696 = fieldWeight in 4684, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4684)
            0.055163912 = weight(_text_:f in 4684) [ClassicSimilarity], result of:
              0.055163912 = score(doc=4684,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.3082599 = fieldWeight in 4684, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4684)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  13. Frey, J.; Streitmatter, D.; Götz, F.; Hellmann, S.; Arndt, N.: DBpedia Archivo : a Web-Scale interface for ontology archiving under consumer-oriented aspects (2020) 0.03
    0.030074244 = product of:
      0.06014849 = sum of:
        0.06014849 = product of:
          0.09022273 = sum of:
            0.035058815 = weight(_text_:j in 52) [ClassicSimilarity], result of:
              0.035058815 = score(doc=52,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.24574696 = fieldWeight in 52, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=52)
            0.055163912 = weight(_text_:f in 52) [ClassicSimilarity], result of:
              0.055163912 = score(doc=52,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.3082599 = fieldWeight in 52, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=52)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  14. OWL Web Ontology Language Test Cases (2004) 0.03
    0.029577121 = product of:
      0.059154242 = sum of:
        0.059154242 = product of:
          0.08873136 = sum of:
            0.04006722 = weight(_text_:j in 4685) [ClassicSimilarity], result of:
              0.04006722 = score(doc=4685,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.28085366 = fieldWeight in 4685, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4685)
            0.04866414 = weight(_text_:22 in 4685) [ClassicSimilarity], result of:
              0.04866414 = score(doc=4685,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.30952093 = fieldWeight in 4685, 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=4685)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    14. 8.2011 13:33:22
    Editor
    Carroll, J.J. u. J. de Roo
  15. Kiren, T.; Shoaib, M.: ¬A novel ontology matching approach using key concepts (2016) 0.03
    0.028713021 = product of:
      0.057426043 = sum of:
        0.057426043 = product of:
          0.08613906 = sum of:
            0.05572397 = weight(_text_:f in 2589) [ClassicSimilarity], result of:
              0.05572397 = score(doc=2589,freq=4.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.31138954 = fieldWeight in 2589, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=2589)
            0.03041509 = weight(_text_:22 in 2589) [ClassicSimilarity], result of:
              0.03041509 = score(doc=2589,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.19345059 = fieldWeight in 2589, 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=2589)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Abstract
    Purpose Ontologies are used to formally describe the concepts within a domain in a machine-understandable way. Matching of heterogeneous ontologies is often essential for many applications like semantic annotation, query answering or ontology integration. Some ontologies may include a large number of entities which make the ontology matching process very complex in terms of the search space and execution time requirements. The purpose of this paper is to present a technique for finding degree of similarity between ontologies that trims down the search space by eliminating the ontology concepts that have less likelihood of being matched. Design/methodology/approach Algorithms are written for finding key concepts, concept matching and relationship matching. WordNet is used for solving synonym problems during the matching process. The technique is evaluated using the reference alignments between ontologies from ontology alignment evaluation initiative benchmark in terms of degree of similarity, Pearson's correlation coefficient and IR measures precision, recall and F-measure. Findings Positive correlation between the degree of similarity and degree of similarity (reference alignment) and computed values of precision, recall and F-measure showed that if only key concepts of ontologies are compared, a time and search space efficient ontology matching system can be developed. Originality/value On the basis of the present novel approach for ontology matching, it is concluded that using key concepts for ontology matching gives comparable results in reduced time and space.
    Date
    20. 1.2015 18:30:22
  16. Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008) 0.03
    0.027927151 = product of:
      0.055854302 = sum of:
        0.055854302 = product of:
          0.08378145 = sum of:
            0.04728335 = weight(_text_:f in 3261) [ClassicSimilarity], result of:
              0.04728335 = score(doc=3261,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.26422277 = fieldWeight in 3261, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3261)
            0.036498103 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
              0.036498103 = score(doc=3261,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.23214069 = fieldWeight in 3261, 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=3261)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    28.11.2016 12:43:22
    Source
    http://www.personal.psu.edu/faculty/f/u/fuf1/hermeneus/Hermeneus_architecture.pdf
  17. Rousset, M.-C.; Atencia, M.; David, J.; Jouanot, F.; Ulliana, F.; Palombi, O.: Datalog revisited for reasoning in linked data (2017) 0.03
    0.026921993 = product of:
      0.053843986 = sum of:
        0.053843986 = product of:
          0.08076598 = sum of:
            0.02504201 = weight(_text_:j in 3936) [ClassicSimilarity], result of:
              0.02504201 = score(doc=3936,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.17553353 = fieldWeight in 3936, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3936)
            0.05572397 = weight(_text_:f in 3936) [ClassicSimilarity], result of:
              0.05572397 = score(doc=3936,freq=4.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.31138954 = fieldWeight in 3936, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3936)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  18. Mayfield, J.; Finin, T.: Information retrieval on the Semantic Web : integrating inference and retrieval 0.03
    0.02587998 = product of:
      0.05175996 = sum of:
        0.05175996 = product of:
          0.07763994 = sum of:
            0.035058815 = weight(_text_:j in 4330) [ClassicSimilarity], result of:
              0.035058815 = score(doc=4330,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.24574696 = fieldWeight in 4330, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4330)
            0.042581122 = weight(_text_:22 in 4330) [ClassicSimilarity], result of:
              0.042581122 = score(doc=4330,freq=2.0), product of:
                0.15722407 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.044897694 = queryNorm
                0.2708308 = fieldWeight in 4330, 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=4330)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    12. 2.2011 17:35:22
  19. Uren, V.; Cimiano, P.; Iria, J.; Handschuh, S.; Vargas-Vera, M.; Motta, E.; Ciravegnac, F.: Semantic annotation for knowledge management : requirements and a survey of the state of the art (2006) 0.03
    0.025777921 = product of:
      0.051555842 = sum of:
        0.051555842 = product of:
          0.07733376 = sum of:
            0.030050414 = weight(_text_:j in 229) [ClassicSimilarity], result of:
              0.030050414 = score(doc=229,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.21064025 = fieldWeight in 229, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=229)
            0.04728335 = weight(_text_:f in 229) [ClassicSimilarity], result of:
              0.04728335 = score(doc=229,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.26422277 = fieldWeight in 229, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=229)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  20. Amarger, F.; Chanet, J.-P.; Haemmerlé, O.; Hernandez, N.; Roussey, C.: SKOS sources transformations for ontology engineering : agronomical taxonomy use case (2014) 0.03
    0.025777921 = product of:
      0.051555842 = sum of:
        0.051555842 = product of:
          0.07733376 = sum of:
            0.030050414 = weight(_text_:j in 1593) [ClassicSimilarity], result of:
              0.030050414 = score(doc=1593,freq=2.0), product of:
                0.14266226 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.044897694 = queryNorm
                0.21064025 = fieldWeight in 1593, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1593)
            0.04728335 = weight(_text_:f in 1593) [ClassicSimilarity], result of:
              0.04728335 = score(doc=1593,freq=2.0), product of:
                0.1789526 = queryWeight, product of:
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.044897694 = queryNorm
                0.26422277 = fieldWeight in 1593, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.985786 = idf(docFreq=2232, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1593)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    

Authors

Years

Languages

  • e 147
  • d 28
  • f 1
  • More… Less…

Types

  • a 131
  • el 49
  • m 10
  • x 8
  • s 6
  • n 5
  • r 3
  • p 1
  • More… Less…

Subjects