Search (23 results, page 1 of 2)

  • × language_ss:"e"
  • × theme_ss:"Semantic Web"
  • × type_ss:"a"
  1. Papadakis, I. et al.: Highlighting timely information in libraries through social and semantic Web technologies (2016) 0.07
    0.066491924 = product of:
      0.13298385 = sum of:
        0.13298385 = sum of:
          0.07141977 = weight(_text_:i in 2090) [ClassicSimilarity], result of:
            0.07141977 = score(doc=2090,freq=2.0), product of:
              0.17138503 = queryWeight, product of:
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.045439374 = queryNorm
              0.41672117 = fieldWeight in 2090, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.078125 = fieldNorm(doc=2090)
          0.06156408 = weight(_text_:22 in 2090) [ClassicSimilarity], result of:
            0.06156408 = score(doc=2090,freq=2.0), product of:
              0.15912095 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045439374 = queryNorm
              0.38690117 = fieldWeight in 2090, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.078125 = fieldNorm(doc=2090)
      0.5 = coord(1/2)
    
    Source
    Metadata and semantics research: 10th International Conference, MTSR 2016, Göttingen, Germany, November 22-25, 2016, Proceedings. Eds.: E. Garoufallou
  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) 0.04
    0.039895155 = product of:
      0.07979031 = sum of:
        0.07979031 = sum of:
          0.042851865 = weight(_text_:i in 2418) [ClassicSimilarity], result of:
            0.042851865 = score(doc=2418,freq=2.0), product of:
              0.17138503 = queryWeight, product of:
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.045439374 = queryNorm
              0.25003272 = fieldWeight in 2418, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.046875 = fieldNorm(doc=2418)
          0.036938448 = weight(_text_:22 in 2418) [ClassicSimilarity], result of:
            0.036938448 = score(doc=2418,freq=2.0), product of:
              0.15912095 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045439374 = 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)
    
    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
  3. Subirats, I.; Prasad, A.R.D.; Keizer, J.; Bagdanov, A.: Implementation of rich metadata formats and demantic tools using DSpace (2008) 0.03
    0.02659677 = product of:
      0.05319354 = sum of:
        0.05319354 = sum of:
          0.02856791 = weight(_text_:i in 2656) [ClassicSimilarity], result of:
            0.02856791 = score(doc=2656,freq=2.0), product of:
              0.17138503 = queryWeight, product of:
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.045439374 = queryNorm
              0.16668847 = fieldWeight in 2656, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.7717297 = idf(docFreq=2765, maxDocs=44218)
                0.03125 = fieldNorm(doc=2656)
          0.024625631 = weight(_text_:22 in 2656) [ClassicSimilarity], result of:
            0.024625631 = score(doc=2656,freq=2.0), product of:
              0.15912095 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.045439374 = queryNorm
              0.15476047 = fieldWeight in 2656, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.03125 = fieldNorm(doc=2656)
      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
  4. Matthews, B.M.: Integration via meaning : using the Semantic Web to deliver Web services (2002) 0.02
    0.018555403 = product of:
      0.037110806 = sum of:
        0.037110806 = product of:
          0.07422161 = sum of:
            0.07422161 = weight(_text_:i in 3609) [ClassicSimilarity], result of:
              0.07422161 = score(doc=3609,freq=6.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.43306938 = fieldWeight in 3609, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.046875 = fieldNorm(doc=3609)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The major developments ofthe World-Wide Web (WWW) in the last two years have been Web Services and the Semantic Web. The former allows the construction of distributed systems across the WWW by providing a lightweight middleware architecture. The latter provides an infrastructure for accessing resources an the WWW via their relationships with respect to conceptual descriptions. In this paper, I shall review the progress undertaken in each of these two areas. Further, I shall argue that in order for the aims of both the Semantic Web and the Web Services activities to be successful, then the Web Service architecture needs to be augmented by concepts and tools of the Semantic Web. This infrastructure will allow resource discovery, brokering and access to be enabled in a standardised, integrated and interoperable manner. Finally, I survey the CLRC Information Technology R&D programme to show how it is contributing to the development of this future infrastructure.
  5. Lukasiewicz, T.: Uncertainty reasoning for the Semantic Web (2017) 0.02
    0.017675493 = product of:
      0.035350986 = sum of:
        0.035350986 = product of:
          0.07070197 = sum of:
            0.07070197 = weight(_text_:i in 3939) [ClassicSimilarity], result of:
              0.07070197 = score(doc=3939,freq=4.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.41253293 = fieldWeight in 3939, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3939)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The Semantic Web has attracted much attention, both from academia and industry. An important role in research towards the Semantic Web is played by formalisms and technologies for handling uncertainty and/or vagueness. In this paper, I first provide some motivating examples for handling uncertainty and/or vagueness in the Semantic Web. I then give an overview of some own formalisms for handling uncertainty and/or vagueness in the Semantic Web.
  6. Menzel, C.: Knowledge representation, the World Wide Web, and the evolution of logic (2011) 0.02
    0.015150423 = product of:
      0.030300846 = sum of:
        0.030300846 = product of:
          0.060601693 = sum of:
            0.060601693 = weight(_text_:i in 761) [ClassicSimilarity], result of:
              0.060601693 = score(doc=761,freq=4.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.35359967 = fieldWeight in 761, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.046875 = fieldNorm(doc=761)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In this paper, I have traced a series of evolutionary adaptations of FOL motivated entirely by its use by knowledge engineers to represent and share information on the Web culminating in the development of Common Logic. While the primary goal in this paper has been to document this evolution, it is arguable, I think that CL's syntactic and semantic egalitarianism better realizes the goal "topic neutrality" that a logic should ideally exemplify - understood, at least in part, as the idea that logic should as far as possible not itself embody any metaphysical presuppositions. Instead of retaining the traditional metaphysical divisions of FOL that reflect its Fregean origins, CL begins as it were with a single, metaphysically homogeneous domain in which, potentially, anything can play the traditional roles of object, property, relation, and function. Note that the effect of this is not to destroy traditional metaphysical divisions. Rather, it simply to refrain from building those divisions explicitly into one's logic; instead, such divisions are left to the user to introduce and enforce axiomatically in an explicit metaphysical theory.
  7. Carbonaro, A.; Santandrea, L.: ¬A general Semantic Web approach for data analysis on graduates statistics 0.01
    0.012625352 = product of:
      0.025250703 = sum of:
        0.025250703 = product of:
          0.050501406 = sum of:
            0.050501406 = weight(_text_:i in 5309) [ClassicSimilarity], result of:
              0.050501406 = score(doc=5309,freq=4.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.29466638 = fieldWeight in 5309, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5309)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Currently, several datasets released in a Linked Open Data format are available at a national and international level, but the lack of shared strategies concerning the definition of concepts related to the statistical publishing community makes difficult a comparison among given facts starting from different data sources. In order to guarantee a shared representation framework for what concerns the dissemination of statistical concepts about graduates, we developed SW4AL, an ontology-based system for graduate's surveys domain. The developed system transforms low-level data into an enriched information model and is based on the AlmaLaurea surveys covering more than 90% of Italian graduates. SW4AL: i) semantically describes the different peculiarities of the graduates; ii) promotes the structured definition of the AlmaLaurea data and the following publication in the Linked Open Data context; iii) provides their reuse in the open data scope; iv) enables logical reasoning about knowledge representation. SW4AL establishes a common semantic for addressing the concept of graduate's surveys domain by proposing the creation of a SPARQL endpoint and a Web based interface for the query and the visualization of the structured data.
    Location
    I
  8. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.01
    0.0123128155 = product of:
      0.024625631 = sum of:
        0.024625631 = product of:
          0.049251262 = sum of:
            0.049251262 = weight(_text_:22 in 3376) [ClassicSimilarity], result of:
              0.049251262 = score(doc=3376,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  9. Malmsten, M.: Making a library catalogue part of the Semantic Web (2008) 0.01
    0.010773714 = product of:
      0.021547427 = sum of:
        0.021547427 = product of:
          0.043094855 = sum of:
            0.043094855 = weight(_text_:22 in 2640) [ClassicSimilarity], result of:
              0.043094855 = score(doc=2640,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.2708308 = fieldWeight in 2640, 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=2640)
          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
  10. Heflin, J.; Hendler, J.: Semantic interoperability on the Web (2000) 0.01
    0.010773714 = product of:
      0.021547427 = sum of:
        0.021547427 = product of:
          0.043094855 = sum of:
            0.043094855 = weight(_text_:22 in 759) [ClassicSimilarity], result of:
              0.043094855 = score(doc=759,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.2708308 = fieldWeight in 759, 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=759)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    11. 5.2013 19:22:18
  11. Franklin, R.A.: Re-inventing subject access for the semantic web (2003) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 2556) [ClassicSimilarity], result of:
              0.036938448 = score(doc=2556,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.23214069 = fieldWeight in 2556, 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=2556)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    30.12.2008 18:22:46
  12. Hooland, S. van; Verborgh, R.; Wilde, M. De; Hercher, J.; Mannens, E.; Wa, R.Van de: Evaluating the success of vocabulary reconciliation for cultural heritage collections (2013) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 662) [ClassicSimilarity], result of:
              0.036938448 = score(doc=662,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.23214069 = fieldWeight in 662, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046875 = fieldNorm(doc=662)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 3.2013 19:29:20
  13. Prud'hommeaux, E.; Gayo, E.: RDF ventures to boldly meet your most pedestrian needs (2015) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 2024) [ClassicSimilarity], result of:
              0.036938448 = score(doc=2024,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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(1/2)
    
    Source
    Bulletin of the Association for Information Science and Technology. 41(2015) no.4, S.18-22
  14. Fensel, D.; Harmelen, F. van; Horrocks, I.: OIL and DAML+OIL : ontology languages for the Semantic Web (2004) 0.01
    0.008927471 = product of:
      0.017854942 = sum of:
        0.017854942 = product of:
          0.035709884 = sum of:
            0.035709884 = weight(_text_:i in 3244) [ClassicSimilarity], result of:
              0.035709884 = score(doc=3244,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.20836058 = fieldWeight in 3244, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3244)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  15. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.01
    0.008706476 = product of:
      0.017412951 = sum of:
        0.017412951 = product of:
          0.034825902 = sum of:
            0.034825902 = weight(_text_:22 in 2654) [ClassicSimilarity], result of:
              0.034825902 = score(doc=2654,freq=4.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  16. Monireh, E.; Sarker, M.K.; Bianchi, F.; Hitzler, P.; Doran, D.; Xie, N.: Reasoning over RDF knowledge bases using deep learning (2018) 0.01
    0.00769551 = product of:
      0.01539102 = sum of:
        0.01539102 = product of:
          0.03078204 = sum of:
            0.03078204 = weight(_text_:22 in 4553) [ClassicSimilarity], result of:
              0.03078204 = score(doc=4553,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.19345059 = fieldWeight in 4553, 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=4553)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    16.11.2018 14:22:01
  17. Fernández, M.; Cantador, I.; López, V.; Vallet, D.; Castells, P.; Motta, E.: Semantically enhanced Information Retrieval : an ontology-based approach (2011) 0.01
    0.0071419775 = product of:
      0.014283955 = sum of:
        0.014283955 = product of:
          0.02856791 = sum of:
            0.02856791 = weight(_text_:i in 230) [ClassicSimilarity], result of:
              0.02856791 = score(doc=230,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.16668847 = fieldWeight in 230, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.03125 = fieldNorm(doc=230)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  18. Kiryakov, A.; Popov, B.; Terziev, I.; Manov, D.; Ognyanoff, D.: Semantic annotation, indexing, and retrieval (2004) 0.01
    0.0071419775 = product of:
      0.014283955 = sum of:
        0.014283955 = product of:
          0.02856791 = sum of:
            0.02856791 = weight(_text_:i in 700) [ClassicSimilarity], result of:
              0.02856791 = score(doc=700,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.16668847 = fieldWeight in 700, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.03125 = fieldNorm(doc=700)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  19. Sah, M.; Wade, V.: Personalized concept-based search on the Linked Open Data (2015) 0.01
    0.0071419775 = product of:
      0.014283955 = sum of:
        0.014283955 = product of:
          0.02856791 = sum of:
            0.02856791 = weight(_text_:i in 2511) [ClassicSimilarity], result of:
              0.02856791 = score(doc=2511,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.16668847 = fieldWeight in 2511, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2511)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In this paper, we present a novel personalized concept-based search mechanism for the Web of Data based on results categorization. The innovation of the paper comes from combining novel categorization and personalization techniques, and using categorization for providing personalization. In our approach, search results (Linked Open Data resources) are dynamically categorized into Upper Mapping and Binding Exchange Layer (UMBEL) concepts using a novel fuzzy retrieval model. Then, results with the same concepts are grouped together to form categories, which we call conceptlenses. Such categorization enables concept-based browsing of the retrieved results aligned to users' intent or interests. When the user selects a concept lens for exploration, results are immediately personalized. In particular, all concept lenses are personally re-organized according to their similarity to the selected lens. Within the selected concept lens; more relevant results are included using results re-ranking and query expansion, as well as relevant concept lenses are suggested to support results exploration. This allows dynamic adaptation of results to the user's local choices. We also support interactive personalization; when the user clicks on a result, within the interacted lens, relevant lenses and results are included using results re-ranking and query expansion. Extensive evaluations were performed to assess our approach: (i) Performance of our fuzzy-based categorization approach was evaluated on a particular benchmark (~10,000 mappings). The evaluations showed that we can achieve highly acceptable categorization accuracy and perform better than the vector space model. (ii) Personalized search efficacy was assessed using a user study with 32 participants in a tourist domain. The results revealed that our approach performed significantly better than a non-adaptive baseline search. (iii) Dynamic personalization performance was evaluated, which illustrated that our personalization approach is scalable. (iv) Finally, we compared our system with the existing LOD search engines, which showed that our approach is unique.
  20. Shoffner, M.; Greenberg, J.; Kramer-Duffield, J.; Woodbury, D.: Web 2.0 semantic systems : collaborative learning in science (2008) 0.01
    0.0061564078 = product of:
      0.0123128155 = sum of:
        0.0123128155 = product of:
          0.024625631 = sum of:
            0.024625631 = weight(_text_:22 in 2661) [ClassicSimilarity], result of:
              0.024625631 = score(doc=2661,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.15476047 = fieldWeight in 2661, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2661)
          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