Search (344 results, page 1 of 18)

  • × theme_ss:"Wissensrepräsentation"
  1. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.17
    0.1735557 = sum of:
      0.039253086 = product of:
        0.11775925 = sum of:
          0.11775925 = weight(_text_:3a in 701) [ClassicSimilarity], result of:
            0.11775925 = score(doc=701,freq=2.0), product of:
              0.31429395 = queryWeight, product of:
                8.478011 = idf(docFreq=24, maxDocs=44218)
                0.03707166 = 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)
        0.33333334 = coord(1/3)
      0.11775925 = weight(_text_:2f in 701) [ClassicSimilarity], result of:
        0.11775925 = score(doc=701,freq=2.0), product of:
          0.31429395 = queryWeight, product of:
            8.478011 = idf(docFreq=24, maxDocs=44218)
            0.03707166 = 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)
      0.012338492 = product of:
        0.024676984 = sum of:
          0.024676984 = weight(_text_:web in 701) [ClassicSimilarity], result of:
            0.024676984 = score(doc=701,freq=4.0), product of:
              0.12098375 = queryWeight, product of:
                3.2635105 = idf(docFreq=4597, maxDocs=44218)
                0.03707166 = queryNorm
              0.2039694 = fieldWeight in 701, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.2635105 = idf(docFreq=4597, maxDocs=44218)
                0.03125 = fieldNorm(doc=701)
        0.5 = coord(1/2)
      0.004204865 = product of:
        0.021024324 = sum of:
          0.021024324 = weight(_text_:28 in 701) [ClassicSimilarity], result of:
            0.021024324 = score(doc=701,freq=2.0), product of:
              0.13280044 = queryWeight, product of:
                3.5822632 = idf(docFreq=3342, maxDocs=44218)
                0.03707166 = queryNorm
              0.15831517 = fieldWeight in 701, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5822632 = idf(docFreq=3342, maxDocs=44218)
                0.03125 = fieldNorm(doc=701)
        0.2 = coord(1/5)
    
    Abstract
    By the explosion of possibilities for a ubiquitous content production, the information overload problem reaches the level of complexity which cannot be managed by traditional modelling approaches anymore. Due to their pure syntactical nature traditional information retrieval approaches did not succeed in treating content itself (i.e. its meaning, and not its representation). This leads to a very low usefulness of the results of a retrieval process for a user's task at hand. In the last ten years ontologies have been emerged from an interesting conceptualisation paradigm to a very promising (semantic) modelling technology, especially in the context of the Semantic Web. From the information retrieval point of view, ontologies enable a machine-understandable form of content description, such that the retrieval process can be driven by the meaning of the content. However, the very ambiguous nature of the retrieval process in which a user, due to the unfamiliarity with the underlying repository and/or query syntax, just approximates his information need in a query, implies a necessity to include the user in the retrieval process more actively in order to close the gap between the meaning of the content and the meaning of a user's query (i.e. his information need). This thesis lays foundation for such an ontology-based interactive retrieval process, in which the retrieval system interacts with a user in order to conceptually interpret the meaning of his query, whereas the underlying domain ontology drives the conceptualisation process. In that way the retrieval process evolves from a query evaluation process into a highly interactive cooperation between a user and the retrieval system, in which the system tries to anticipate the user's information need and to deliver the relevant content proactively. Moreover, the notion of content relevance for a user's query evolves from a content dependent artefact to the multidimensional context-dependent structure, strongly influenced by the user's preferences. This cooperation process is realized as the so-called Librarian Agent Query Refinement Process. In order to clarify the impact of an ontology on the retrieval process (regarding its complexity and quality), a set of methods and tools for different levels of content and query formalisation is developed, ranging from pure ontology-based inferencing to keyword-based querying in which semantics automatically emerges from the results. Our evaluation studies have shown that the possibilities to conceptualize a user's information need in the right manner and to interpret the retrieval results accordingly are key issues for realizing much more meaningful information retrieval systems.
    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.
    Date
    31. 3.2013 15:20:28
    Theme
    Semantic Web
  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) 0.12
    0.11775925 = product of:
      0.2355185 = sum of:
        0.058879625 = product of:
          0.17663887 = sum of:
            0.17663887 = weight(_text_:3a in 400) [ClassicSimilarity], result of:
              0.17663887 = score(doc=400,freq=2.0), product of:
                0.31429395 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.03707166 = 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)
          0.33333334 = coord(1/3)
        0.17663887 = weight(_text_:2f in 400) [ClassicSimilarity], result of:
          0.17663887 = score(doc=400,freq=2.0), product of:
            0.31429395 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.03707166 = 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)
      0.5 = coord(2/4)
    
    Content
    Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.
  3. Xiong, C.: Knowledge based text representations for information retrieval (2016) 0.10
    0.1028949 = product of:
      0.2057898 = sum of:
        0.039253086 = product of:
          0.11775925 = sum of:
            0.11775925 = weight(_text_:3a in 5820) [ClassicSimilarity], result of:
              0.11775925 = score(doc=5820,freq=2.0), product of:
                0.31429395 = queryWeight, product of:
                  8.478011 = idf(docFreq=24, maxDocs=44218)
                  0.03707166 = queryNorm
                0.3746787 = fieldWeight in 5820, 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=5820)
          0.33333334 = coord(1/3)
        0.16653672 = weight(_text_:2f in 5820) [ClassicSimilarity], result of:
          0.16653672 = score(doc=5820,freq=4.0), product of:
            0.31429395 = queryWeight, product of:
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.03707166 = queryNorm
            0.5298757 = fieldWeight in 5820, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              8.478011 = idf(docFreq=24, maxDocs=44218)
              0.03125 = fieldNorm(doc=5820)
      0.5 = coord(2/4)
    
    Content
    Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Language and Information Technologies. Vgl.: https%3A%2F%2Fwww.cs.cmu.edu%2F~cx%2Fpapers%2Fknowledge_based_text_representation.pdf&usg=AOvVaw0SaTSvhWLTh__Uz_HtOtl3.
  4. Hollink, L.; Assem, M. van: Estimating the relevance of search results in the Culture-Web : a study of semantic distance measures (2010) 0.03
    0.031739607 = product of:
      0.063479215 = sum of:
        0.03926084 = product of:
          0.07852168 = sum of:
            0.07852168 = weight(_text_:web in 4649) [ClassicSimilarity], result of:
              0.07852168 = score(doc=4649,freq=18.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.64902663 = fieldWeight in 4649, product of:
                  4.2426405 = tf(freq=18.0), with freq of:
                    18.0 = termFreq=18.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4649)
          0.5 = coord(1/2)
        0.024218373 = product of:
          0.060545933 = sum of:
            0.030409746 = weight(_text_:29 in 4649) [ClassicSimilarity], result of:
              0.030409746 = score(doc=4649,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23319192 = fieldWeight in 4649, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4649)
            0.030136187 = weight(_text_:22 in 4649) [ClassicSimilarity], result of:
              0.030136187 = score(doc=4649,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23214069 = fieldWeight in 4649, 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=4649)
          0.4 = coord(2/5)
      0.5 = coord(2/4)
    
    Abstract
    More and more cultural heritage institutions publish their collections, vocabularies and metadata on the Web. The resulting Web of linked cultural data opens up exciting new possibilities for searching and browsing through these cultural heritage collections. We report on ongoing work in which we investigate the estimation of relevance in this Web of Culture. We study existing measures of semantic distance and how they apply to two use cases. The use cases relate to the structured, multilingual and multimodal nature of the Culture Web. We distinguish between measures using the Web, such as Google distance and PMI, and measures using the Linked Data Web, i.e. the semantic structure of metadata vocabularies. We perform a small study in which we compare these semantic distance measures to human judgements of relevance. Although it is too early to draw any definitive conclusions, the study provides new insights into the applicability of semantic distance measures to the Web of Culture, and clear starting points for further research.
    Date
    29. 7.2011 14:44:56
    26.12.2011 13:40:22
    Theme
    Semantic Web
  5. Gödert, W.; Hubrich, J.; Nagelschmidt, M.: Semantic knowledge representation for information retrieval (2014) 0.03
    0.029646939 = product of:
      0.059293877 = sum of:
        0.034624808 = product of:
          0.069249615 = sum of:
            0.069249615 = weight(_text_:web in 987) [ClassicSimilarity], result of:
              0.069249615 = score(doc=987,freq=14.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.57238775 = fieldWeight in 987, product of:
                  3.7416575 = tf(freq=14.0), with freq of:
                    14.0 = termFreq=14.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=987)
          0.5 = coord(1/2)
        0.02466907 = product of:
          0.061672673 = sum of:
            0.031536486 = weight(_text_:28 in 987) [ClassicSimilarity], result of:
              0.031536486 = score(doc=987,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23747274 = fieldWeight in 987, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.046875 = fieldNorm(doc=987)
            0.030136187 = weight(_text_:22 in 987) [ClassicSimilarity], result of:
              0.030136187 = score(doc=987,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23214069 = fieldWeight in 987, 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=987)
          0.4 = coord(2/5)
      0.5 = coord(2/4)
    
    Abstract
    This book covers the basics of semantic web technologies and indexing languages, and describes their contribution to improve languages as a tool for subject queries and knowledge exploration. The book is relevant to information scientists, knowledge workers and indexers. It provides a suitable combination of theoretical foundations and practical applications.
    Date
    28. 8.2014 9:36:11
    23. 7.2017 13:49:22
    LCSH
    Semantic Web
    World Wide Web / Subject access
    RSWK
    Semantic Web
    Subject
    Semantic Web
    World Wide Web / Subject access
    Semantic Web
  6. Best Practice Recipes for Publishing RDF Vocabularies (2008) 0.03
    0.027676687 = product of:
      0.055353373 = sum of:
        0.026445134 = product of:
          0.052890267 = sum of:
            0.052890267 = weight(_text_:web in 4471) [ClassicSimilarity], result of:
              0.052890267 = score(doc=4471,freq=6.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.43716836 = fieldWeight in 4471, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4471)
          0.5 = coord(1/2)
        0.028908242 = product of:
          0.0722706 = sum of:
            0.03679257 = weight(_text_:28 in 4471) [ClassicSimilarity], result of:
              0.03679257 = score(doc=4471,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.27705154 = fieldWeight in 4471, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4471)
            0.035478037 = weight(_text_:29 in 4471) [ClassicSimilarity], result of:
              0.035478037 = score(doc=4471,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.27205724 = fieldWeight in 4471, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4471)
          0.4 = coord(2/5)
      0.5 = coord(2/4)
    
    Abstract
    This document describes best practice recipes for publishing vocabularies or ontologies on the Web (in RDF Schema or OWL). The features of each recipe are described in detail, so that vocabulary designers may choose the recipe best suited to their needs. Each recipe introduces general principles and an example configuration for use with an Apache HTTP server (which may be adapted to other environments). The recipes are all designed to be consistent with the architecture of the Web as currently specified, although the associated example configurations have been kept intentionally simple.
    Date
    14. 8.2011 14:29:06
    Issue
    W3C Working Group Note 28 August 2008.
    Theme
    Semantic Web
  7. ¬The Semantic Web - ISWC 2010 : 9th International Semantic Web Conference, ISWC 2010, Shanghai, China, November 7-11, 2010, Revised Selected Papers, Part 2. (2010) 0.03
    0.027522447 = product of:
      0.055044893 = sum of:
        0.049976602 = product of:
          0.099953204 = sum of:
            0.099953204 = weight(_text_:web in 4706) [ClassicSimilarity], result of:
              0.099953204 = score(doc=4706,freq=42.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.8261705 = fieldWeight in 4706, product of:
                  6.4807405 = tf(freq=42.0), with freq of:
                    42.0 = termFreq=42.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4706)
          0.5 = coord(1/2)
        0.005068291 = product of:
          0.025341455 = sum of:
            0.025341455 = weight(_text_:29 in 4706) [ClassicSimilarity], result of:
              0.025341455 = score(doc=4706,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.19432661 = fieldWeight in 4706, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4706)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    The two-volume set LNCS 6496 and 6497 constitutes the refereed proceedings of the 9th International Semantic Web Conference, ISWC 2010, held in Shanghai, China, during November 7-11, 2010. Part I contains 51 papers out of 578 submissions to the research track. Part II contains 18 papers out of 66 submissions to the semantic Web in-use track, 6 papers out of 26 submissions to the doctoral consortium track, and also 4 invited talks. Each submitted paper were carefully reviewed. The International Semantic Web Conferences (ISWC) constitute the major international venue where the latest research results and technical innovations on all aspects of the Semantic Web are presented. ISWC brings together researchers, practitioners, and users from the areas of artificial intelligence, databases, social networks, distributed computing, Web engineering, information systems, natural language processing, soft computing, and human computer interaction to discuss the major challenges and proposed solutions, the success stories and failures, as well the visions that can advance research and drive innovation in the Semantic Web.
    Date
    29. 7.2011 14:44:56
    RSWK
    Semantic Web / Kongress / Schanghai <2010>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Schanghai <2010>
    Semantic Web / Datenverwaltung / Wissensmanagement / Kongress / Schanghai <2010>
    Semantic Web / Anwendungssystem / Kongress / Schanghai <2010>
    Semantic Web / World Wide Web 2.0 / Kongress / Schanghai <2010>
    Subject
    Semantic Web / Kongress / Schanghai <2010>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Schanghai <2010>
    Semantic Web / Datenverwaltung / Wissensmanagement / Kongress / Schanghai <2010>
    Semantic Web / Anwendungssystem / Kongress / Schanghai <2010>
    Semantic Web / World Wide Web 2.0 / Kongress / Schanghai <2010>
    Theme
    Semantic Web
  8. ¬The Semantic Web : research and applications ; second European Semantic WebConference, ESWC 2005, Heraklion, Crete, Greece, May 29 - June 1, 2005 ; proceedings (2005) 0.02
    0.023733255 = product of:
      0.04746651 = sum of:
        0.04138456 = product of:
          0.08276912 = sum of:
            0.08276912 = weight(_text_:web in 439) [ClassicSimilarity], result of:
              0.08276912 = score(doc=439,freq=20.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.6841342 = fieldWeight in 439, product of:
                  4.472136 = tf(freq=20.0), with freq of:
                    20.0 = termFreq=20.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=439)
          0.5 = coord(1/2)
        0.0060819495 = product of:
          0.030409746 = sum of:
            0.030409746 = weight(_text_:29 in 439) [ClassicSimilarity], result of:
              0.030409746 = score(doc=439,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23319192 = fieldWeight in 439, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=439)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    This book constitutes the refereed proceedings of the Second European Semantic Web Conference, ESWC 2005, heldin Heraklion, Crete, Greece in May/June 2005. The 48 revised full papers presented were carefully reviewed and selected from 148 submissions. The papers are organized in topical sections on semantic Web services, languages, ontologies, reasoning and querying, search and information retrieval, user and communities, natural language for the semantic Web, annotation tools, and semantic Web applications.
    RSWK
    Semantic Web / Kongress / Iraklion <2005>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Iraklion <2005>
    Subject
    Semantic Web / Kongress / Iraklion <2005>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Iraklion <2005>
    Theme
    Semantic Web
  9. OWL Web Ontology Language Test Cases (2004) 0.02
    0.023527026 = product of:
      0.047054052 = sum of:
        0.039017737 = product of:
          0.078035474 = sum of:
            0.078035474 = weight(_text_:web in 4685) [ClassicSimilarity], result of:
              0.078035474 = score(doc=4685,freq=10.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.6450079 = fieldWeight in 4685, product of:
                  3.1622777 = tf(freq=10.0), with freq of:
                    10.0 = termFreq=10.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0625 = fieldNorm(doc=4685)
          0.5 = coord(1/2)
        0.008036317 = product of:
          0.040181585 = sum of:
            0.040181585 = weight(_text_:22 in 4685) [ClassicSimilarity], result of:
              0.040181585 = score(doc=4685,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = 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)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    This document contains and presents test cases for the Web Ontology Language (OWL) approved by the Web Ontology Working Group. Many of the test cases illustrate the correct usage of the Web Ontology Language (OWL), and the formal meaning of its constructs. Other test cases illustrate the resolution of issues considered by the Working Group. Conformance for OWL documents and OWL document checkers is specified.
    Date
    14. 8.2011 13:33:22
    Theme
    Semantic Web
  10. Mayfield, J.; Finin, T.: Information retrieval on the Semantic Web : integrating inference and retrieval 0.02
    0.02221542 = product of:
      0.04443084 = sum of:
        0.037399065 = product of:
          0.07479813 = sum of:
            0.07479813 = weight(_text_:web in 4330) [ClassicSimilarity], result of:
              0.07479813 = score(doc=4330,freq=12.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.6182494 = fieldWeight in 4330, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4330)
          0.5 = coord(1/2)
        0.007031777 = product of:
          0.035158884 = sum of:
            0.035158884 = weight(_text_:22 in 4330) [ClassicSimilarity], result of:
              0.035158884 = score(doc=4330,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = 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)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    One vision of the Semantic Web is that it will be much like the Web we know today, except that documents will be enriched by annotations in machine understandable markup. These annotations will provide metadata about the documents as well as machine interpretable statements capturing some of the meaning of document content. We discuss how the information retrieval paradigm might be recast in such an environment. We suggest that retrieval can be tightly bound to inference. Doing so makes today's Web search engines useful to Semantic Web inference engines, and causes improvements in either retrieval or inference to lead directly to improvements in the other.
    Date
    12. 2.2011 17:35:22
    Theme
    Semantic Web
  11. Deokattey, S.; Neelameghan, A.; Kumar, V.: ¬A method for developing a domain ontology : a case study for a multidisciplinary subject (2010) 0.02
    0.022024343 = product of:
      0.044048686 = sum of:
        0.015268105 = product of:
          0.03053621 = sum of:
            0.03053621 = weight(_text_:web in 3694) [ClassicSimilarity], result of:
              0.03053621 = score(doc=3694,freq=2.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.25239927 = fieldWeight in 3694, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3694)
          0.5 = coord(1/2)
        0.02878058 = product of:
          0.07195145 = sum of:
            0.03679257 = weight(_text_:28 in 3694) [ClassicSimilarity], result of:
              0.03679257 = score(doc=3694,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.27705154 = fieldWeight in 3694, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=3694)
            0.035158884 = weight(_text_:22 in 3694) [ClassicSimilarity], result of:
              0.035158884 = score(doc=3694,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = queryNorm
                0.2708308 = fieldWeight in 3694, 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=3694)
          0.4 = coord(2/5)
      0.5 = coord(2/4)
    
    Abstract
    A method to develop a prototype domain ontology has been described. The domain selected for the study is Accelerator Driven Systems. This is a multidisciplinary and interdisciplinary subject comprising Nuclear Physics, Nuclear and Reactor Engineering, Reactor Fuels and Radioactive Waste Management. Since Accelerator Driven Systems is a vast topic, select areas in it were singled out for the study. Both qualitative and quantitative methods such as Content analysis, Facet analysis and Clustering were used, to develop the web-based model.
    Date
    6. 1.1997 18:30:28
    22. 7.2010 19:41:16
  12. ¬The Semantic Web - ISWC 2010 : 9th International Semantic Web Conference, ISWC 2010, Shanghai, China, November 7-11, 2010, Revised Selected Papers, Part I. (2010) 0.02
    0.022017958 = product of:
      0.044035915 = sum of:
        0.039981283 = product of:
          0.07996257 = sum of:
            0.07996257 = weight(_text_:web in 4707) [ClassicSimilarity], result of:
              0.07996257 = score(doc=4707,freq=42.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.6609364 = fieldWeight in 4707, product of:
                  6.4807405 = tf(freq=42.0), with freq of:
                    42.0 = termFreq=42.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4707)
          0.5 = coord(1/2)
        0.004054633 = product of:
          0.020273164 = sum of:
            0.020273164 = weight(_text_:29 in 4707) [ClassicSimilarity], result of:
              0.020273164 = score(doc=4707,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.15546128 = fieldWeight in 4707, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03125 = fieldNorm(doc=4707)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    The two-volume set LNCS 6496 and 6497 constitutes the refereed proceedings of the 9th International Semantic Web Conference, ISWC 2010, held in Shanghai, China, during November 7-11, 2010. Part I contains 51 papers out of 578 submissions to the research track. Part II contains 18 papers out of 66 submissions to the semantic Web in-use track, 6 papers out of 26 submissions to the doctoral consortium track, and also 4 invited talks. Each submitted paper were carefully reviewed. The International Semantic Web Conferences (ISWC) constitute the major international venue where the latest research results and technical innovations on all aspects of the Semantic Web are presented. ISWC brings together researchers, practitioners, and users from the areas of artificial intelligence, databases, social networks, distributed computing, Web engineering, information systems, natural language processing, soft computing, and human computer interaction to discuss the major challenges and proposed solutions, the success stories and failures, as well the visions that can advance research and drive innovation in the Semantic Web.
    Date
    29. 7.2011 14:44:56
    RSWK
    Semantic Web / Kongress / Schanghai <2010>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Schanghai <2010>
    Semantic Web / Datenverwaltung / Wissensmanagement / Kongress / Schanghai <2010>
    Semantic Web / Anwendungssystem / Kongress / Schanghai <2010>
    Semantic Web / World Wide Web 2.0 / Kongress / Schanghai <2010>
    Subject
    Semantic Web / Kongress / Schanghai <2010>
    Semantic Web / Ontologie <Wissensverarbeitung> / Kongress / Schanghai <2010>
    Semantic Web / Datenverwaltung / Wissensmanagement / Kongress / Schanghai <2010>
    Semantic Web / Anwendungssystem / Kongress / Schanghai <2010>
    Semantic Web / World Wide Web 2.0 / Kongress / Schanghai <2010>
    Theme
    Semantic Web
  13. Hüsken, P.: Informationssuche im Semantic Web : Methoden des Information Retrieval für die Wissensrepräsentation (2006) 0.02
    0.021548713 = product of:
      0.043097425 = sum of:
        0.037015475 = product of:
          0.07403095 = sum of:
            0.07403095 = weight(_text_:web in 4332) [ClassicSimilarity], result of:
              0.07403095 = score(doc=4332,freq=16.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.6119082 = fieldWeight in 4332, product of:
                  4.0 = tf(freq=16.0), with freq of:
                    16.0 = termFreq=16.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4332)
          0.5 = coord(1/2)
        0.0060819495 = product of:
          0.030409746 = sum of:
            0.030409746 = weight(_text_:29 in 4332) [ClassicSimilarity], result of:
              0.030409746 = score(doc=4332,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23319192 = fieldWeight in 4332, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4332)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    Das Semantic Web bezeichnet ein erweitertes World Wide Web (WWW), das die Bedeutung von präsentierten Inhalten in neuen standardisierten Sprachen wie RDF Schema und OWL modelliert. Diese Arbeit befasst sich mit dem Aspekt des Information Retrieval, d.h. es wird untersucht, in wie weit Methoden der Informationssuche sich auf modelliertes Wissen übertragen lassen. Die kennzeichnenden Merkmale von IR-Systemen wie vage Anfragen sowie die Unterstützung unsicheren Wissens werden im Kontext des Semantic Web behandelt. Im Fokus steht die Suche nach Fakten innerhalb einer Wissensdomäne, die entweder explizit modelliert sind oder implizit durch die Anwendung von Inferenz abgeleitet werden können. Aufbauend auf der an der Universität Duisburg-Essen entwickelten Retrievalmaschine PIRE wird die Anwendung unsicherer Inferenz mit probabilistischer Prädikatenlogik (pDatalog) implementiert.
    Date
    12. 2.2011 17:29:27
    Footnote
    Zugl.: Dortmund, Univ., Dipl.-Arb., 2006 u.d.T.: Hüsken, Peter: Information-Retrieval im Semantic-Web.
    RSWK
    Information Retrieval / Semantic Web
    Subject
    Information Retrieval / Semantic Web
    Theme
    Semantic Web
  14. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.02
    0.019129664 = product of:
      0.038259327 = sum of:
        0.03022301 = product of:
          0.06044602 = sum of:
            0.06044602 = weight(_text_:web in 3376) [ClassicSimilarity], result of:
              0.06044602 = score(doc=3376,freq=6.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.49962097 = fieldWeight in 3376, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3376)
          0.5 = coord(1/2)
        0.008036317 = product of:
          0.040181585 = sum of:
            0.040181585 = weight(_text_:22 in 3376) [ClassicSimilarity], result of:
              0.040181585 = score(doc=3376,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = 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)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    This chapter presents ontologies and their role in the creation of the Semantic Web. Ontologies hold special interest, because they are very closely related to the way we understand the world. They provide common understanding, the very first step to successful communication. In following sections, we will present ontologies, how they are created and used. We will describe available tools for specifying and working with ontologies.
    Date
    31. 7.2010 16:58:22
    Theme
    Semantic Web
  15. Wielinga, B.; Wielemaker, J.; Schreiber, G.; Assem, M. van: Methods for porting resources to the Semantic Web (2004) 0.02
    0.019069146 = product of:
      0.038138293 = sum of:
        0.032056343 = product of:
          0.064112686 = sum of:
            0.064112686 = weight(_text_:web in 4640) [ClassicSimilarity], result of:
              0.064112686 = score(doc=4640,freq=12.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.5299281 = fieldWeight in 4640, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4640)
          0.5 = coord(1/2)
        0.0060819495 = product of:
          0.030409746 = sum of:
            0.030409746 = weight(_text_:29 in 4640) [ClassicSimilarity], result of:
              0.030409746 = score(doc=4640,freq=2.0), product of:
                0.13040651 = queryWeight, product of:
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23319192 = fieldWeight in 4640, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5176873 = idf(docFreq=3565, maxDocs=44218)
                  0.046875 = fieldNorm(doc=4640)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    Ontologies will play a central role in the development of the Semantic Web. It is unrealistic to assume that such ontologies will be developed from scratch. Rather, we assume that existing resources such as thesauri and lexical data bases will be reused in the development of ontologies for the Semantic Web. In this paper we describe a method for converting existing source material to a representation that is compatible with Semantic Web languages such as RDF(S) and OWL. The method is illustrated with three case studies: converting Wordnet, AAT and MeSH to RDF(S) and OWL.
    Date
    29. 7.2011 14:44:56
    Source
    Proceedings of the First European Semantic Web Symposium (ESWS2004), Eds.: C. Bussler, J. Davies, D. Fensel and R. Studer. 2004. S.299-311
    Theme
    Semantic Web
  16. Bosch, M.: Ontologies, different reasoning strategies, different logics, different kinds of knowledge representation : working together (2006) 0.02
    0.016901825 = product of:
      0.03380365 = sum of:
        0.026445134 = product of:
          0.052890267 = sum of:
            0.052890267 = weight(_text_:web in 166) [ClassicSimilarity], result of:
              0.052890267 = score(doc=166,freq=6.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.43716836 = fieldWeight in 166, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=166)
          0.5 = coord(1/2)
        0.007358514 = product of:
          0.03679257 = sum of:
            0.03679257 = weight(_text_:28 in 166) [ClassicSimilarity], result of:
              0.03679257 = score(doc=166,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.27705154 = fieldWeight in 166, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=166)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    The recent experiences in the building, maintenance and reuse of ontologies has shown that the most efficient approach is the collaborative one. However, communication between collaborators such as IT professionals, librarians, web designers and subject matter experts is difficult and time consuming. This is because there are different reasoning strategies, different logics and different kinds of knowledge representation in the applications of Semantic Web. This article intends to be a reference scheme. It uses concise and simple explanations that can be used in common by specialists of different backgrounds working together in an application of Semantic Web.
    Date
    6. 1.1997 18:30:28
  17. 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) 0.02
    0.016240595 = product of:
      0.03248119 = sum of:
        0.026173891 = product of:
          0.052347783 = sum of:
            0.052347783 = weight(_text_:web in 229) [ClassicSimilarity], result of:
              0.052347783 = score(doc=229,freq=8.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.43268442 = fieldWeight in 229, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=229)
          0.5 = coord(1/2)
        0.0063072974 = product of:
          0.031536486 = sum of:
            0.031536486 = weight(_text_:28 in 229) [ClassicSimilarity], result of:
              0.031536486 = score(doc=229,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.23747274 = fieldWeight in 229, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.046875 = fieldNorm(doc=229)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    While much of a company's knowledge can be found in text repositories, current content management systems have limited capabilities for structuring and interpreting documents. In the emerging Semantic Web, search, interpretation and aggregation can be addressed by ontology-based semantic mark-up. In this paper, we examine semantic annotation, identify a number of requirements, and review the current generation of semantic annotation systems. This analysis shows that, while there is still some way to go before semantic annotation tools will be able to address fully all the knowledge management needs, research in the area is active and making good progress.
    Source
    Web semantics: science, services and agents on the World Wide Web. 4(2006) no.1, S.14-28
    Theme
    Semantic Web
  18. 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
    0.016100565 = product of:
      0.03220113 = sum of:
        0.026173891 = product of:
          0.052347783 = sum of:
            0.052347783 = weight(_text_:web in 2418) [ClassicSimilarity], result of:
              0.052347783 = score(doc=2418,freq=8.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.43268442 = fieldWeight in 2418, product of:
                  2.828427 = tf(freq=8.0), with freq of:
                    8.0 = termFreq=8.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2418)
          0.5 = coord(1/2)
        0.0060272375 = product of:
          0.030136187 = sum of:
            0.030136187 = weight(_text_:22 in 2418) [ClassicSimilarity], result of:
              0.030136187 = score(doc=2418,freq=2.0), product of:
                0.12981863 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03707166 = 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)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    Integrated digital access to multiple collections is a prominent issue for many Cultural Heritage institutions. The metadata describing diverse collections must be interoperable, which requires aligning the controlled vocabularies that are used to annotate objects from these collections. In this paper, we present an experiment where we match the vocabularies of two collections by applying the Knowledge Representation techniques established in recent Semantic Web research. We discuss the steps that are required for such matching, namely formalising the initial resources using Semantic Web languages, and running ontology mapping tools on the resulting representations. In addition, we present a prototype that enables the user to browse the two collections using the obtained alignment while still providing her with the original vocabulary structures.
    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
    Theme
    Semantic Web
  19. Breslin, J.G.: Social semantic information spaces (2009) 0.02
    0.01598485 = product of:
      0.0319697 = sum of:
        0.026713617 = product of:
          0.053427234 = sum of:
            0.053427234 = weight(_text_:web in 3377) [ClassicSimilarity], result of:
              0.053427234 = score(doc=3377,freq=12.0), product of:
                0.12098375 = queryWeight, product of:
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.03707166 = queryNorm
                0.4416067 = fieldWeight in 3377, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  3.2635105 = idf(docFreq=4597, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3377)
          0.5 = coord(1/2)
        0.0052560815 = product of:
          0.026280407 = sum of:
            0.026280407 = weight(_text_:28 in 3377) [ClassicSimilarity], result of:
              0.026280407 = score(doc=3377,freq=2.0), product of:
                0.13280044 = queryWeight, product of:
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.03707166 = queryNorm
                0.19789396 = fieldWeight in 3377, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5822632 = idf(docFreq=3342, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=3377)
          0.2 = coord(1/5)
      0.5 = coord(2/4)
    
    Abstract
    The structural and syntactic web put in place in the early 90s is still much the same as what we use today: resources (web pages, files, etc.) connected by untyped hyperlinks. By untyped, we mean that there is no easy way for a computer to figure out what a link between two pages means - for example, on the W3C website, there are hundreds of links to the various organisations that are registered members of the association, but there is nothing explicitly saying that the link is to an organisation that is a "member of" the W3C or what type of organisation is represented by the link. On John's work page, he links to many papers he has written, but it does not explicitly say that he is the author of those papers or that he wrote such-and-such when he was working at a particular university. In fact, the Web was envisaged to be much more, as one can see from the image in Fig. 1 which is taken from Tim Berners Lee's original outline for the Web in 1989, entitled "Information Management: A Proposal". In this, all the resources are connected by links describing the type of relationships, e.g. "wrote", "describe", "refers to", etc. This is a precursor to the Semantic Web which we will come back to later.
    Date
    31. 7.2010 16:58:28
    Theme
    Semantic Web
  20. Moustafid, Y. El: Semantic Web Techniken für E-Learning (2003) 0.02
    0.01583062 = product of:
      0.06332248 = sum of:
        0.06332248 = sum of:
          0.026173891 = weight(_text_:web in 585) [ClassicSimilarity], result of:
            0.026173891 = score(doc=585,freq=8.0), product of:
              0.12098375 = queryWeight, product of:
                3.2635105 = idf(docFreq=4597, maxDocs=44218)
                0.03707166 = queryNorm
              0.21634221 = fieldWeight in 585, product of:
                2.828427 = tf(freq=8.0), with freq of:
                  8.0 = termFreq=8.0
                3.2635105 = idf(docFreq=4597, maxDocs=44218)
                0.0234375 = fieldNorm(doc=585)
          0.037148587 = weight(_text_:seiten in 585) [ClassicSimilarity], result of:
            0.037148587 = score(doc=585,freq=2.0), product of:
              0.20383513 = queryWeight, product of:
                5.4984083 = idf(docFreq=491, maxDocs=44218)
                0.03707166 = queryNorm
              0.1822482 = fieldWeight in 585, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                5.4984083 = idf(docFreq=491, maxDocs=44218)
                0.0234375 = fieldNorm(doc=585)
      0.25 = coord(1/4)
    
    Abstract
    Die vorliegende Arbeit versucht, das Thema "Topic Maps" von verschiedenen Perspektiven zu betrachten. "Topic Maps" sind geordnete Wissensnetze. Sie stellen ein Hilfsmittel dar, um sich in der immer größer werdenden Informationsvielfalt zurechtzufinden und beim Navigieren trotz einer möglichen Informationsüberflutung die Übersicht zu behalten. Wie ein Stichwortverzeichnis in einem guten Fachbuch, helfen sie, die genau gesuchte Information zu finden. Die Tatsache, dass elektronische Informationen in größerem Umfang als die Seiten eines Buches vorliegen und auf heterogenen Plattformen gespeichert sind, zieht die Konsequenz mit sich, dass Topic Maps nicht nur aus einer Liste alphabetisch sortierter Stichworte bestehen. Vielmehr werden mit Hilfe von Topic Maps logische Konzepte entworfen, die Wissensnetze semantisch modellieren. In Zusammenhang mit Topic Maps spricht Tim Berner-Lee von der dritten Revolution des Internets. Die XTM-Arbeitsgruppe wirbt sogar mit dem Slogan "Das GPS des Web". So wie eine Landkarte eine schematische Sicht auf eine reale Landschaft ermöglicht und bestimmte Merkmale der Landschaft (z.B. Städte, Straßen, Flüsse) markiert, sind Topic Map in der Lage wichtige Merkmale eines Informationsbestandes festzuhalten und in Bezug zueinander zu setzen. So wie ein GPS-Empfänger die eigene Position auf der Karte feststellt, kann eine Topic Map die Orientierung in einer virtuellen Welt vernetzter Dokumente herstellen. Das klingt etwas exotisch, hat jedoch durchaus praktische und sehr weit gefächerte Anwendungen.
    In dieser Arbeit wurde zuerst der Übergang von Suchmaschinen zu einem semantischen Web beschrieben. Im zweiten Kapitel wurden die Topic Maps ausführlicher behandelt. Angefangen bei der Geschichte von Topic Maps, über die Entwurfsziele bis hin zu einem XTM-Tutorial . In diesem Tutorial wurden verschiedene Beispiele durchgeführt und die Lineare Topic Map von Ontopia vorgestellt. Abschließend wurde anhand eines Beispiels eine mögliche Realisierung von Topic Maps mit HTML. Das dritte Kapitel wurde den TopicMaps-Tools und Anfragesprachen gewidmet. Es wurden kommerzielle sowie freiverfügbare Tools vorgestellt und miteinander verglichen. Danach wurden die beiden Anfragesprachen Tolog und TMQL eingeführt. Im vierten Kapitel wurden die beiden Einsatzgebiete von Topic Maps behandelt. Das sind zum einen die Webkataloge und die Suchmaschinen. Zum anderen ist es möglich, auch im Rahmen vom E-Learning von dem Konzept der Topic Maps zu profitieren. In diesem Zusammenhang wurde erst der Omnigator von Ontopia vorgestellt. Dann wurde das im Laufe dieser Arbeit entwickelte Topic Maps Tool E-Learning -Tracker ausgeführt und erklärt.
    Trotz alledem bleibt diese Technik keine graue Theorie. Denn obwohl es spürbare Schwierigkeiten auf dem Weg zur Popularität gibt, wird sie eines Tages das Web beherrschen. Microsoft hat sogar versucht, einige Leute und Entwickler von Topic Maps abzuwerben, was ihr missglückt ist. Dies ist als ein Hinweis zu verstehen, dass diese Technik Interesse bei einigen Herrschern in der Informatikindustrie.

Years

Languages

  • e 271
  • d 65
  • f 1
  • pt 1
  • sp 1
  • More… Less…

Types

  • a 226
  • el 109
  • m 24
  • x 22
  • n 12
  • s 10
  • r 4
  • p 2
  • A 1
  • EL 1
  • More… Less…

Subjects

Classifications