Now showing items 21-40 of 277

    • 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 ...
    • 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- ...
    • 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 ...
    • Sharing information across community portals with FOAFRealm 

      Breslin, John; Grzonkowski, Slawomir; Gzella, Adam; Kruk, Sebastian Ryszard; Woroniecki, Tomasz (IADIS Press, 2007)
    • 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 ...
    • The Boardscape: Creating a Super Social Network of Message Boards 

      Breslin, John; Bojars, Uldis (AAAI, 2007)
      A Web-based message board or forum is an online area where discussions are held by many Internet users on a variety of subjects. More recently, online social networks have been created for various purposes: job searching, ...
    • A DRM Solution Based on Social Networks and Enabling the Idea of Fair Use 

      Grzonkowski, Slawomir; Ensor, Brian; Kruk, Sebastian Ryszard; Gzella, Adam; Decker, Stefan; McDaniel, Bill (2007)
      Fair use policy allows legal owners to share products they bought with their acquaintance; it is based on the assumptions that the owners pass an original product and they cannot use it at the same time. In the digital ...
    • Imprecise Empirical Ontology Refinement: Application to Taxonomy Acquisition 

      Nováček, Vít (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 ...
    • 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. ...
    • 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 ...
    • Semantic SOA to Promote Integration of Heterogeneous B2B Services 

      Vitvar, Tomas; Moran, Matthew; Zaremba, Maciej; Haller, Armin; Kotinurmi, Paavo (IEEE, 2007)
      Modeling the semantics of business services and their corresponding messages using ontologies enables flexible integration that is more adaptive to business-driven change. In this paper we demonstrate our approach building ...
    • 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 ...
    • Adapting informal sources of knowledge to e-Learning 

      Jankowski, Jacek; Czaja, Filip; Dobrzanski, Jaroslaw (2007)
    • 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 ...
    • A Prototype to Explore Content and Context on Social Community Sites 

      Bojars, Uldis; Heitmann, Benjamin; Oren, Eyal (2007)
      The SIOC Ontology can be used to express information from the online community sites in a machine readable form using RDF. This rich data structure allows us to easily analyse and extract social relations from these ...
    • 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, ...
    • 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 ...
    • The NEPOMUK Project - On the way to the Social Semantic Desktop 

      Groza, Tudor; Handschuh, Siegfried; Möller, Knud (2007)
      This paper introduces the NEPOMUK project which aims to create a standard and reference implementation for the Social Semantic Desktop. We outline the requirements and functionalities that were identified for a useful ...
    • 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 ...
    • 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 ...