Search (22 results, page 1 of 2)

  • × theme_ss:"Semantic Web"
  • × theme_ss:"Wissensrepräsentation"
  • × type_ss:"a"
  1. Veltman, K.H.: Towards a Semantic Web for culture 0.03
    0.029475685 = product of:
      0.05895137 = sum of:
        0.020258585 = weight(_text_:science in 4040) [ClassicSimilarity], result of:
          0.020258585 = score(doc=4040,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.16463245 = fieldWeight in 4040, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.03125 = fieldNorm(doc=4040)
        0.038692784 = product of:
          0.07738557 = sum of:
            0.07738557 = weight(_text_:history in 4040) [ClassicSimilarity], result of:
              0.07738557 = score(doc=4040,freq=6.0), product of:
                0.21731828 = queryWeight, product of:
                  4.6519823 = idf(docFreq=1146, maxDocs=44218)
                  0.0467152 = queryNorm
                0.35609323 = fieldWeight in 4040, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  4.6519823 = idf(docFreq=1146, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4040)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Abstract
    Today's semantic web deals with meaning in a very restricted sense and offers static solutions. This is adequate for many scientific, technical purposes and for business transactions requiring machine-to-machine communication, but does not answer the needs of culture. Science, technology and business are concerned primarily with the latest findings, the state of the art, i.e. the paradigm or dominant world-view of the day. In this context, history is considered non-essential because it deals with things that are out of date. By contrast, culture faces a much larger challenge, namely, to re-present changes in ways of knowing; changing meanings in different places at a given time (synchronically) and over time (diachronically). Culture is about both objects and the commentaries on them; about a cumulative body of knowledge; about collective memory and heritage. Here, history plays a central role and older does not mean less important or less relevant. Hence, a Leonardo painting that is 400 years old, or a Greek statue that is 2500 years old, typically have richer commentaries and are often more valuable than their contemporary equivalents. In this context, the science of meaning (semantics) is necessarily much more complex than semantic primitives. A semantic web in the cultural domain must enable us to trace how meaning and knowledge organisation have evolved historically in different cultures. This paper examines five issues to address this challenge: 1) different world-views (i.e. a shift from substance to function and from ontology to multiple ontologies); 2) developments in definitions and meaning; 3) distinctions between words and concepts; 4) new classes of relations; and 5) dynamic models of knowledge organisation. These issues reveal that historical dimensions of cultural diversity in knowledge organisation are also central to classification of biological diversity. New ways are proposed of visualizing knowledge using a time/space horizon to distinguish between universals and particulars. It is suggested that new visualization methods make possible a history of questions as well as of answers, thus enabling dynamic access to cultural and historical dimensions of knowledge. Unlike earlier media, which were limited to recording factual dimensions of collective memory, digital media enable us to explore theories, ways of perceiving, ways of knowing; to enter into other mindsets and world-views and thus to attain novel insights and new levels of tolerance. Some practical consequences are outlined.
  2. Gendt, M. van; Isaac, I.; Meij, L. van der; Schlobach, S.: Semantic Web techniques for multiple views on heterogeneous collections : a case study (2006) 0.02
    0.020237632 = product of:
      0.040475264 = sum of:
        0.021487473 = weight(_text_:science in 2418) [ClassicSimilarity], result of:
          0.021487473 = score(doc=2418,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.17461908 = fieldWeight in 2418, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=2418)
        0.018987793 = product of:
          0.037975587 = sum of:
            0.037975587 = weight(_text_:22 in 2418) [ClassicSimilarity], result of:
              0.037975587 = score(doc=2418,freq=2.0), product of:
                0.16358867 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0467152 = queryNorm
                0.23214069 = fieldWeight in 2418, 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=2418)
          0.5 = coord(1/2)
      0.5 = coord(2/4)
    
    Series
    Lecture notes in computer science; vol.4172
    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
  3. Prud'hommeaux, E.; Gayo, E.: RDF ventures to boldly meet your most pedestrian needs (2015) 0.02
    0.020237632 = product of:
      0.040475264 = sum of:
        0.021487473 = weight(_text_:science in 2024) [ClassicSimilarity], result of:
          0.021487473 = score(doc=2024,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.17461908 = fieldWeight in 2024, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=2024)
        0.018987793 = product of:
          0.037975587 = sum of:
            0.037975587 = weight(_text_:22 in 2024) [ClassicSimilarity], result of:
              0.037975587 = score(doc=2024,freq=2.0), product of:
                0.16358867 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0467152 = 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)
      0.5 = coord(2/4)
    
    Source
    Bulletin of the Association for Information Science and Technology. 41(2015) no.4, S.18-22
  4. Corcho, O.; Poveda-Villalón, M.; Gómez-Pérez, A.: Ontology engineering in the era of linked data (2015) 0.01
    0.008863131 = product of:
      0.035452522 = sum of:
        0.035452522 = weight(_text_:science in 3293) [ClassicSimilarity], result of:
          0.035452522 = score(doc=3293,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.2881068 = fieldWeight in 3293, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3293)
      0.25 = coord(1/4)
    
    Abstract
    Ontology engineering encompasses the method, tools and techniques used to develop ontologies. Without requiring ontologies, linked data is driving a paradigm shift, bringing benefits and drawbacks to the publishing world. Ontologies may be heavyweight, supporting deep understanding of a domain, or lightweight, suited to simple classification of concepts and more adaptable for linked data. They also vary in domain specificity, usability and reusabilty. Hybrid vocabularies drawing elements from diverse sources often suffer from internally incompatible semantics. To serve linked data purposes, ontology engineering teams require a range of skills in philosophy, computer science, web development, librarianship and domain expertise.
    Source
    Bulletin of the Association for Information Science and Technology. 41(2015) no.4, S.13-17
  5. Wang, H.; Liu, Q.; Penin, T.; Fu, L.; Zhang, L.; Tran, T.; Yu, Y.; Pan, Y.: Semplore: a scalable IR approach to search the Web of Data (2009) 0.01
    0.0075969696 = product of:
      0.030387878 = sum of:
        0.030387878 = weight(_text_:science in 1638) [ClassicSimilarity], result of:
          0.030387878 = score(doc=1638,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.24694869 = fieldWeight in 1638, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=1638)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http://www.sciencedirect.com/science/article/pii/S1570826809000262.
    Source
    Web semantics: science, services and agents on the World Wide Web. 7(2009) no.3, S.177-188
  6. Suchanek, F.M.; Kasneci, G.; Weikum, G.: YAGO: a large ontology from Wikipedia and WordNet (2008) 0.01
    0.0075969696 = product of:
      0.030387878 = sum of:
        0.030387878 = weight(_text_:science in 3404) [ClassicSimilarity], result of:
          0.030387878 = score(doc=3404,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.24694869 = fieldWeight in 3404, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=3404)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B758F-4TDJGCF-1&_user=10&_coverDate=09%2F30%2F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1352884236&_rerunOrigin=google&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=3285f9101276b6f41185a30c1b39d1d0.
    Source
    Web semantics: science, services and agents on the World Wide Web. 6(2008) no.3, S.203-217
  7. 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) 0.01
    0.0075969696 = product of:
      0.030387878 = sum of:
        0.030387878 = weight(_text_:science in 229) [ClassicSimilarity], result of:
          0.030387878 = score(doc=229,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.24694869 = fieldWeight in 229, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=229)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http://www.sciencedirect.com/science/article/pii/S1570826805000338.
    Source
    Web semantics: science, services and agents on the World Wide Web. 4(2006) no.1, S.14-28
  8. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.01
    0.006329265 = product of:
      0.02531706 = sum of:
        0.02531706 = product of:
          0.05063412 = sum of:
            0.05063412 = weight(_text_:22 in 3376) [ClassicSimilarity], result of:
              0.05063412 = score(doc=3376,freq=2.0), product of:
                0.16358867 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0467152 = queryNorm
                0.30952093 = fieldWeight in 3376, 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=3376)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    31. 7.2010 16:58:22
  9. Zhang, L.: Linking information through function (2014) 0.01
    0.005371868 = product of:
      0.021487473 = sum of:
        0.021487473 = weight(_text_:science in 1526) [ClassicSimilarity], result of:
          0.021487473 = score(doc=1526,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.17461908 = fieldWeight in 1526, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=1526)
      0.25 = coord(1/4)
    
    Source
    Journal of the Association for Information Science and Technology. 65(2014) no.11, S.2293-2305
  10. Kara, S.: ¬An ontology-based retrieval system using semantic indexing (2012) 0.01
    0.005371868 = product of:
      0.021487473 = sum of:
        0.021487473 = weight(_text_:science in 3829) [ClassicSimilarity], result of:
          0.021487473 = score(doc=3829,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.17461908 = fieldWeight in 3829, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.046875 = fieldNorm(doc=3829)
      0.25 = coord(1/4)
    
    Content
    Thesis submitted to the Graduate School of Natural and Applied Sciences of Middle East Technical University in partial fulfilment of the requirements for the degree of Master of science in Computer Engineering (XII, 57 S.)
  11. Fernández, M.; Cantador, I.; López, V.; Vallet, D.; Castells, P.; Motta, E.: Semantically enhanced Information Retrieval : an ontology-based approach (2011) 0.01
    0.0050646462 = product of:
      0.020258585 = sum of:
        0.020258585 = weight(_text_:science in 230) [ClassicSimilarity], result of:
          0.020258585 = score(doc=230,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.16463245 = fieldWeight in 230, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.03125 = fieldNorm(doc=230)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http://www.sciencedirect.com/science/article/pii/S1570826810000910.
    Source
    Web semantics: science, services and agents on the World Wide Web. 9(2011) no.4, S.434-452
  12. Kiryakov, A.; Popov, B.; Terziev, I.; Manov, D.; Ognyanoff, D.: Semantic annotation, indexing, and retrieval (2004) 0.01
    0.0050646462 = product of:
      0.020258585 = sum of:
        0.020258585 = weight(_text_:science in 700) [ClassicSimilarity], result of:
          0.020258585 = score(doc=700,freq=4.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.16463245 = fieldWeight in 700, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.03125 = fieldNorm(doc=700)
      0.25 = coord(1/4)
    
    Content
    Vgl.: http://www.sciencedirect.com/science/article/pii/S1570826804000162.
    Source
    Web semantics: science, services and agents on the World Wide Web. 2(2004) no.1, S.49-79
  13. McGuinness, D.L.: Ontologies come of age (2003) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 3084) [ClassicSimilarity], result of:
          0.017906228 = score(doc=3084,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 3084, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=3084)
      0.25 = coord(1/4)
    
    Abstract
    Ontologies have moved beyond the domains of library science, philosophy, and knowledge representation. They are now the concerns of marketing departments, CEOs, and mainstream business. Research analyst companies such as Forrester Research report on the critical roles of ontologies in support of browsing and search for e-commerce and in support of interoperability for facilitation of knowledge management and configuration. One now sees ontologies used as central controlled vocabularies that are integrated into catalogues, databases, web publications, knowledge management applications, etc. Large ontologies are essential components in many online applications including search (such as Yahoo and Lycos), e-commerce (such as Amazon and eBay), configuration (such as Dell and PC-Order), etc. One also sees ontologies that have long life spans, sometimes in multiple projects (such as UMLS, SIC codes, etc.). Such diverse usage generates many implications for ontology environments. In this paper, we will discuss ontologies and requirements in their current instantiations on the web today. We will describe some desirable properties of ontologies. We will also discuss how both simple and complex ontologies are being and may be used to support varied applications. We will conclude with a discussion of emerging trends in ontologies and their environments and briefly mention our evolving ontology evolution environment.
  14. Iorio, A. di; Peroni, S.; Vitali, F.: ¬A Semantic Web approach to everyday overlapping markup (2011) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 4749) [ClassicSimilarity], result of:
          0.017906228 = score(doc=4749,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 4749, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4749)
      0.25 = coord(1/4)
    
    Source
    Journal of the American Society for Information Science and Technology. 62(2011) no.9, S.1696-1716
  15. Zhang, L.; Liu, Q.L.; Zhang, J.; Wang, H.F.; Pan, Y.; Yu, Y.: Semplore: an IR approach to scalable hybrid query of Semantic Web data (2007) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 231) [ClassicSimilarity], result of:
          0.017906228 = score(doc=231,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 231, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=231)
      0.25 = coord(1/4)
    
    Series
    Lecture notes in computer science; 4825
  16. Allocca, C.; Aquin, M.d'; Motta, E.: Impact of using relationships between ontologies to enhance the ontology search results (2012) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 264) [ClassicSimilarity], result of:
          0.017906228 = score(doc=264,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 264, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=264)
      0.25 = coord(1/4)
    
    Series
    Lecture notes in computer science; 7295
  17. Boer, V. de; Wielemaker, J.; Gent, J. van; Hildebrand, M.; Isaac, A.; Ossenbruggen, J. van; Schreiber, G.: Supporting linked data production for cultural heritage institutes : the Amsterdam Museum case study (2012) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 265) [ClassicSimilarity], result of:
          0.017906228 = score(doc=265,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 265, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=265)
      0.25 = coord(1/4)
    
    Series
    Lecture notes in computer science; 7295
  18. Manaf, N.A. Abdul; Bechhofer, S.; Stevens, R.: ¬The current state of SKOS vocabularies on the Web (2012) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 266) [ClassicSimilarity], result of:
          0.017906228 = score(doc=266,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 266, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=266)
      0.25 = coord(1/4)
    
    Series
    Lecture notes in computer science; 7295
  19. Guns, R.: Tracing the origins of the semantic web (2013) 0.00
    0.004476557 = product of:
      0.017906228 = sum of:
        0.017906228 = weight(_text_:science in 1093) [ClassicSimilarity], result of:
          0.017906228 = score(doc=1093,freq=2.0), product of:
            0.12305341 = queryWeight, product of:
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0467152 = queryNorm
            0.1455159 = fieldWeight in 1093, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.6341193 = idf(docFreq=8627, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1093)
      0.25 = coord(1/4)
    
    Source
    Journal of the American Society for Information Science and Technology. 64(2013) no.10, S.2173-2181
  20. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.00
    0.004475466 = product of:
      0.017901864 = sum of:
        0.017901864 = product of:
          0.035803728 = sum of:
            0.035803728 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
              0.035803728 = score(doc=2654,freq=4.0), product of:
                0.16358867 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0467152 = queryNorm
                0.21886435 = fieldWeight in 2654, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2654)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Abstract
    In order to transfer the Chinese Classified Thesaurus (CCT) into a machine-processable format and provide CCT-based Web services, a pilot study has been conducted in which a variety of selected CCT classes and mapped thesaurus entries are encoded with SKOS. OWL and RDFS are also used to encode the same contents for the purposes of feasibility and cost-benefit comparison. CCT is a collected effort led by the National Library of China. It is an integration of the national standards Chinese Library Classification (CLC) 4th edition and Chinese Thesaurus (CT). As a manually created mapping product, CCT provides for each of the classes the corresponding thesaurus terms, and vice versa. The coverage of CCT includes four major clusters: philosophy, social sciences and humanities, natural sciences and technologies, and general works. There are 22 main-classes, 52,992 sub-classes and divisions, 110,837 preferred thesaurus terms, 35,690 entry terms (non-preferred terms), and 59,738 pre-coordinated headings (Chinese Classified Thesaurus, 2005) Major challenges of encoding this large vocabulary comes from its integrated structure. CCT is a result of the combination of two structures (illustrated in Figure 1): a thesaurus that uses ISO-2788 standardized structure and a classification scheme that is basically enumerative, but provides some flexibility for several kinds of synthetic mechanisms Other challenges include the complex relationships caused by differences of granularities of two original schemes and their presentation with various levels of SKOS elements; as well as the diverse coordination of entries due to the use of auxiliary tables and pre-coordinated headings derived from combining classes, subdivisions, and thesaurus terms, which do not correspond to existing unique identifiers. The poster reports the progress, shares the sample SKOS entries, and summarizes problems identified during the SKOS encoding process. Although OWL Lite and OWL Full provide richer expressiveness, the cost-benefit issues and the final purposes of encoding CCT raise questions of using such approaches.
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas