Search (18 results, page 1 of 1)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"Wissensrepräsentation"
  1. King, B.E.; Reinold, K.: Finding the concept, not just the word : a librarian's guide to ontologies and semantics (2008) 0.02
    0.021694869 = product of:
      0.043389738 = sum of:
        0.043389738 = product of:
          0.086779475 = sum of:
            0.086779475 = weight(_text_:b.a in 2863) [ClassicSimilarity], result of:
              0.086779475 = score(doc=2863,freq=2.0), product of:
                0.3371676 = queryWeight, product of:
                  7.7650614 = idf(docFreq=50, maxDocs=44218)
                  0.043421112 = queryNorm
                0.25737786 = fieldWeight in 2863, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  7.7650614 = idf(docFreq=50, maxDocs=44218)
                  0.0234375 = fieldNorm(doc=2863)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Aimed at students and professionals within Library and Information Services (LIS), this book is about the power and potential of ontologies to enhance the electronic search process. The book will compare search strategies and results in the current search environment and demonstrate how these could be transformed using ontologies and concept searching. Simple descriptions, visual representations, and examples of ontologies will bring a full understanding of how these concept maps are constructed to enhance retrieval through natural language queries. Readers will gain a sense of how ontologies are currently being used and how they could be applied in the future, encouraging them to think about how their own work and their users' search experiences could be enhanced by the creation of a customized ontology. Key Features Written by a librarian, for librarians (most work on ontologies is written and read by people in computer science and knowledge management) Written by a librarian who has created her own ontology and performed research on its capabilities Written in easily understandable language, with concepts broken down to the basics The Author Ms. King is the Information Specialist at the Center on Media and Child Health at Children's Hospital Boston. She is a graduate of Smith College (B.A.) and Simmons College (M.L.I.S.). She is an active member of the Special Libraries Association, and was the recipient of the 2005 SLA Innovation in Technology Award for the creation of a customized media effects ontology used for semantic searching. Readership The book is aimed at practicing librarians and information professionals as well as graduate students of Library and Information Science. Contents Introduction Part 1: Understanding Ontologies - organising knowledge; what is an ontology? How are ontologies different from other knowledge representations? How are ontologies currently being used? Key concepts Ontologies in semantic search - determining whether a search was successful; what does semantic search have to offer? Semantic techniques; semantic searching behind the scenes; key concepts Creating an ontology - how to create an ontology; key concepts Building an ontology from existing components - choosing components; customizing your knowledge structure; key concepts Part 2: Semantic Technologies Natural language processing - tagging parts of speech; grammar-based NLP; statistical NLP; semantic analysis,; current applications of NLP; key concepts Using metadata to add semantic information - structured languages; metadata tagging; semantic tagging; key concepts Other semantic capabilities - semantic classification; synsets; topic maps; rules and inference; key concepts Part 3: Case Studies: Theory into Practice Biogen Idec: using semantics in drug discovery research - Biogen Idec's solution; the future The Center on Media and Child Health: using an ontology to explore the effects of media - building the ontology; choosing the source; implementing and comparing to Boolean search; the future Partners HealthCare System: semantic technologies to improve clinical decision support - the medical appointment; partners healthcare system's solution; lessons learned; the future MINDSWAP: using ontologies to aid terrorism; intelligence gathering - building, using and maintaining the ontology; sharing information with other experts; future plans Part 4: Advanced Topics Languages for expressing ontologies - XML; RDF; OWL; SKOS; Ontology language features - comparison chart Tools for building ontologies - basic criteria when evaluating ontologies Part 5: Transitions to the Future
  2. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.02
    0.017241059 = product of:
      0.034482118 = sum of:
        0.034482118 = product of:
          0.13792847 = sum of:
            0.13792847 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
              0.13792847 = score(doc=701,freq=2.0), product of:
                0.36812466 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.043421112 = queryNorm
                0.3746787 = fieldWeight in 701, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.03125 = fieldNorm(doc=701)
          0.25 = coord(1/4)
      0.5 = coord(1/2)
    
    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
  3. Tudhope, D.; Hodge, G.: Terminology registries (2007) 0.01
    0.014707404 = product of:
      0.029414808 = sum of:
        0.029414808 = product of:
          0.058829617 = sum of:
            0.058829617 = weight(_text_:22 in 539) [ClassicSimilarity], result of:
              0.058829617 = score(doc=539,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.38690117 = fieldWeight in 539, 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=539)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    26.12.2011 13:22:07
  4. Haller, S.H.M.: Mappingverfahren zur Wissensorganisation (2002) 0.01
    0.014707404 = product of:
      0.029414808 = sum of:
        0.029414808 = product of:
          0.058829617 = sum of:
            0.058829617 = weight(_text_:22 in 3406) [ClassicSimilarity], result of:
              0.058829617 = score(doc=3406,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.38690117 = fieldWeight in 3406, 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=3406)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30. 5.2010 16:22:35
  5. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.01
    0.011765923 = product of:
      0.023531847 = sum of:
        0.023531847 = product of:
          0.047063693 = sum of:
            0.047063693 = weight(_text_:22 in 3376) [ClassicSimilarity], result of:
              0.047063693 = score(doc=3376,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = 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)
      0.5 = coord(1/2)
    
    Date
    31. 7.2010 16:58:22
  6. OWL Web Ontology Language Test Cases (2004) 0.01
    0.011765923 = product of:
      0.023531847 = sum of:
        0.023531847 = product of:
          0.047063693 = sum of:
            0.047063693 = weight(_text_:22 in 4685) [ClassicSimilarity], result of:
              0.047063693 = score(doc=4685,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    14. 8.2011 13:33:22
  7. Priss, U.: Faceted information representation (2000) 0.01
    0.0102951825 = product of:
      0.020590365 = sum of:
        0.020590365 = product of:
          0.04118073 = sum of:
            0.04118073 = weight(_text_:22 in 5095) [ClassicSimilarity], result of:
              0.04118073 = score(doc=5095,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.2708308 = fieldWeight in 5095, 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=5095)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 1.2016 17:47:06
  8. Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie (2005) 0.01
    0.0102951825 = product of:
      0.020590365 = sum of:
        0.020590365 = product of:
          0.04118073 = sum of:
            0.04118073 = weight(_text_:22 in 1852) [ClassicSimilarity], result of:
              0.04118073 = score(doc=1852,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.2708308 = fieldWeight in 1852, 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=1852)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 2.2011 18:22:58
  9. Knorz, G.; Rein, B.: Semantische Suche in einer Hochschulontologie : Ontologie-basiertes Information-Filtering und -Retrieval mit relationalen Datenbanken (2005) 0.01
    0.0102951825 = product of:
      0.020590365 = sum of:
        0.020590365 = product of:
          0.04118073 = sum of:
            0.04118073 = weight(_text_:22 in 4324) [ClassicSimilarity], result of:
              0.04118073 = score(doc=4324,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.2708308 = fieldWeight in 4324, 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=4324)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 2.2011 18:22:25
  10. Definition of the CIDOC Conceptual Reference Model (2003) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 1652) [ClassicSimilarity], result of:
              0.035297766 = score(doc=1652,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.23214069 = fieldWeight in 1652, 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=1652)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    6. 8.2010 14:22:28
  11. Gendt, M. van; Isaac, I.; Meij, L. van der; Schlobach, S.: Semantic Web techniques for multiple views on heterogeneous collections : a case study (2006) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 2418) [ClassicSimilarity], result of:
              0.035297766 = score(doc=2418,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = 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(1/2)
    
    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
  12. Renear, A.H.; Wickett, K.M.; Urban, R.J.; Dubin, D.; Shreeves, S.L.: Collection/item metadata relationships (2008) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 2623) [ClassicSimilarity], result of:
              0.035297766 = score(doc=2623,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.23214069 = fieldWeight in 2623, 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=2623)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
  13. Kruk, S.R.; Kruk, E.; Stankiewicz, K.: Evaluation of semantic and social technologies for digital libraries (2009) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 3387) [ClassicSimilarity], result of:
              0.035297766 = score(doc=3387,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.23214069 = fieldWeight in 3387, 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=3387)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    1. 8.2010 12:35:22
  14. Bittner, T.; Donnelly, M.; Winter, S.: Ontology and semantic interoperability (2006) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 4820) [ClassicSimilarity], result of:
              0.035297766 = score(doc=4820,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.23214069 = fieldWeight in 4820, 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=4820)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    3.12.2016 18:39:22
  15. Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008) 0.01
    0.008824442 = product of:
      0.017648883 = sum of:
        0.017648883 = product of:
          0.035297766 = sum of:
            0.035297766 = weight(_text_:22 in 3261) [ClassicSimilarity], result of:
              0.035297766 = score(doc=3261,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    28.11.2016 12:43:22
  16. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.01
    0.008319764 = product of:
      0.016639529 = sum of:
        0.016639529 = product of:
          0.033279058 = sum of:
            0.033279058 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
              0.033279058 = score(doc=2654,freq=4.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = 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)
      0.5 = coord(1/2)
    
    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
  17. Müller, T.: Wissensrepräsentation mit semantischen Netzen im Bereich Luftfahrt (2006) 0.01
    0.007353702 = product of:
      0.014707404 = sum of:
        0.014707404 = product of:
          0.029414808 = sum of:
            0.029414808 = weight(_text_:22 in 1670) [ClassicSimilarity], result of:
              0.029414808 = score(doc=1670,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.19345059 = fieldWeight in 1670, 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=1670)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    26. 9.2006 21:00:22
  18. Dobrev, P.; Kalaydjiev, O.; Angelova, G.: From conceptual structures to semantic interoperability of content (2007) 0.01
    0.007353702 = product of:
      0.014707404 = sum of:
        0.014707404 = product of:
          0.029414808 = sum of:
            0.029414808 = weight(_text_:22 in 4607) [ClassicSimilarity], result of:
              0.029414808 = score(doc=4607,freq=2.0), product of:
                0.15205334 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043421112 = queryNorm
                0.19345059 = fieldWeight in 4607, 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=4607)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Conceptual structures: knowledge architectures for smart applications: 15th International Conference on Conceptual Structures, ICCS 2007, Sheffield, UK, July 22 - 27, 2007 ; proceedings. Eds.: U. Priss u.a