Now showing items 21-40 of 114

  • Sindice.com: Weaving the open linked data 

    Tummarello, Giovanni; Delbru, Renaud; Oren, Eyal (2007)
    Developers of SemanticWeb applications face a challenge with respect to the decentralised publication model: where to find statements about encountered resources. The linked data" approach, which man- dates that resource ...
  • YARS2: A Federated Repository for Querying Graph Structured Data from the Web 

    Harth, Andreas; Umbrich, Jürgen; Hogan, Aidan; Decker, Stefan (2007)
    We present the architecture of an end-to-end semantic search engine that uses a graph data model to enable interactive query answering over structured and interlinked data collected from many disparate sources on the Web. ...
  • A Protégé Plug-in Development to Support the NEPOMUK Representational Language 

    Caires, Milena; Scerri, Simon; Handschuh, Siegfried (2007)
    In this document, we present the challenges faced to develop a plug-in for Protégé that supports requirements for the NEPOMUK1 Representational Language (NRL). NRL is a language built on top of RDF/S and ...
  • Leveraging Ontologies, Context and Social Networks to Automate Photo Annotation 

    Monaghan, Fergal; O'Sullivan, David (Springer, 2007)
    This paper presents an approach to semi-automate photo an- notation. Instead of using content-recognition techniques this approach leverages context information available at the scene of the photo such as time and location ...
  • SPARQL++ for mapping between RDF vocabularies 

    Polleres, Axel (Springer, 2007)
    Lightweight ontologies in the formof RDF vocabularies such as SIOC, FOAF, vCard, etc. are increasingly being used and exported by ¿serious¿ applications recently. Such vocabularies, together with query languages like SPARQL ...
  • MultiBeeBrowse Accessible Browsing on Unstructured Metadata 

    Kruk, Sebastian Ryszard; Gzella, Adam; Czaja, Filip; Bultrowicz, Wladyslaw; Kruk, Ewelina (Springer, 2007)
    Growing abundance of information on the Internet, especially the Next Generation Internet, poses even more challenges on more efficient information management; hence it has brought attention of the researchers to the faceted ...
  • E-Learning on the Social Semantic Information Sources 

    Kruk, Sebastian Ryszard; Gzella, Adam; Dobrzanski, Jaroslaw; McDaniel, Bill; Woroniecki, Tomasz (2007)
    E-Learning grows on the fertile soil of the Internet technologies; it fails, however, to reach their full potential. With new, emerging technologies of the second generation Internet there is even more to be captured and ...
  • Sharing information across community portals with FOAFRealm 

    Breslin, John; Grzonkowski, Slawomir; Gzella, Adam; Kruk, Sebastian Ryszard; Woroniecki, Tomasz (IADIS Press, 2007)
  • Examination of the Impact of Emerging Technologies on eLearning 

    McDaniel, Bill; Kruk, Sebastian Ryszard (Association for the Advancement of Computing in Education, 2007)
    eLearning has, to date, mostly been a matter of content being displayed on PCs running Windows, Linux, or MAC OS. Emerging technologies have recently, however, expanded the capabilities and scope of portable and mobile ...
  • WSMO-PA: Formal Specification of Public Administration Service Model on Semantic Web Service Ontology 

    Wang, Xia; Peristeras, Vassilios; Vitvar, Tomas; Mocan, Adrian (IEEE, 2007)
    In this paper we define a formal model for a Public Ad- ministration service on the basis of the Web Service Modeling Ontology (WSMO). For this purpose we employ the generic public service object model of the Governance ...
  • ActiveRDF: Object-oriented semantic web programming 

    Oren, Eyal; Delbru, Renaud; Gerke, Sebastian; Haller, Armin; Decker, Stefan (Association for Computing Machinery, 2007)
    Object-oriented programming is the current mainstream programming paradigm but existing RDF APIs are mostly triple-oriented. Traditional techniques for bridging a similar gap between relational databases and object-oriented ...
  • Handling heterogeneity in RosettaNet messages 

    Haller, Armin; Kotinurmi, Paavo; Vitvar, Tomas; Oren, Eyal (2007)
    We present a semantic B2B gateway based on the WSMX se- mantic Service-Oriented Architecture to tackle heterogeneities in RosettaNet messages. We develop a rich RosettaNet ontology and use the axiomatised knowledge and ...
  • Dynamic Service Discovery through Meta-Interactions with Service Providers 

    Vitvar, Tomas; Zaremba, Maciej; Moran, Matthew (Springer, 2007)
    Dynamic discovery based on semantic description of services is an essential aspect of the Semantic Web services integration process. Since not all data required for service discovery can always be included in service ...
  • Simple algorithms for predicate suggestions using similarity and co-occurrence 

    Oren, Eyal; Gerke, Sebastian; Decker, Stefan (Association for Computing Machinery, 2007)
    When creating Semantic Web data, users have to make a critical choice for a vocabulary: only through shared vocabularies can meaning be established. A centralised policy prevents terminology divergence but would restrict ...
  • Imprecise Empirical Ontology Refinement: Application to Taxonomy Acquisition 

    Novacek, Vit (INSTICC, 2007)
    The significance of uncertainty representation has become obvious in the Semantic Web community recently. This paper presents new results of our research on uncertainty incorporation into ontologies created automatically ...
  • Towards Optimized Data Fetching for Service Discovery 

    Zaremba, Maciej; Vitvar, Tomas; Moran, Matthew (IEEE, 2007)
    The advent of Service Oriented Architecture makes services the most flexible, platform-independent choice for exposing and integrating business functionality across a network. However, the lack of service discovery mechanisms, ...
  • Using Tags and Clustering to Identify Topic-Relevant Blogs 

    Hayes, Conor (IAAA, 2007)
    The Web has experienced an exponential growth in the use of weblogs or blogs. Blog entries are generally organised using tags, informally defined labels which are increasingly being proposed as a `grassroots¿ answer to ...
  • Infrastructure for data processing in large-scale interconnected sensor network 

    Aberer, Karl; Hauswirth, Manfred (2007)
    With the price of wireless sensor technologies diminishing rapidly we can expect large numbers of autonomous sensor networks being deployed in the near future. These sensor networks will typically not remain isolated but ...
  • Quantified equilibrium logic and hybrid rules 

    Polleres, Axel (Springer, 2007)
    In the ongoing discussion about combining rules and Ontologies on the Semantic Web a recurring issue is how to combine first-order classical logic with nonmonotonic rule languages. Whereas several modular approaches to de- ...
  • Towards Semantic Interoperability (In-depth comparison of two approaches to solving Semantic Web Service Challenge mediation tasks) 

    Zaremba, Maciej; Vitvar, Tomas; Moran, Matthew (2007)
    This paper overviews and compares the DERI and DEI-Cefriel approaches to the SWS-Challenge workshop mediation scenario in terms of the utilized underlying technologies and delivered solutions. In the mediation scenario one ...