Now showing items 21-40 of 127

  • The Development of A Realistic Simulation Framework with OMNeT++ 

    Shu, Lei (IEEE, 2008)
    It is necessary to use simulation tools in the study of wireless network. The object-oriented modular discrete event network simulator, OMNeT++, can not only afford many network simulation but has strong GUI support and ...
  • DigiMe - Ubiquitous Search and Browsing for Digital Libraries 

    Kruk, Sebastian Ryszard; Grzonkowski, Slawomir; Gzella, Adam; Cygan, Mariusz (IEEE, 2006)
    Vast sources of information, such as the Internet are difficult to browse and/or search through. Existing tools can be sometimes frustrating for many people. So far a number of techniques have been proposed to deliver ...
  • DING! Dataset Ranking using Formal Descriptions 

    Toupikov, Nickolai; Umbrich, Jürgen; Delbru, Renaud; Hausenblas, Michael; Tummarello, Giovanni (2009)
    Considering that thousands if not millions of linked datasets will be published soon, we motivate in this paper the need for an efficient and effective way to rank interlinked datasets based on formal descriptions of their ...
  • Discovery of Optimized Web Service Configurations Using a Hybrid Semantic and Statistical Approach 

    Zaremba, Maciej; Migdal, Jacek; Hauswirth, Manfred (IEEE, 2009)
    We present a Semantic Optimized Service Discovery (Se- mOSD) approach capable of handling Web service search requests on a fine-grained level of detail where we augment semantic service descriptions with statistically built ...
  • A Distributed Semantic Microblogging Platform 

    Passant, Alexandre; Hastrup, Tuukka; Bojars, Uldis; Breslin, John (2008)
    The application showcases the ideas of a distributed, Semantic-Web enabled micro blogging architecture, providing a way to leverage this new Web 2.0 practice to the Semantic Web.
  • dlvhex-sparql: A SPARQL-compliant query engine based on dlvhex 

    Polleres, Axel (CEUR, 2007)
    This paper describes the dlvhex SPARQL plugin, a query processor for the upcoming Semantic Web query language standard by W3C. We report on the implementation of this languages using dlvhex, a flexible plugin system ...
  • Dynamic Querying of Mass-Storage RDF Data with Rule-Based Entailment Regimes 

    Krennwallner, Thomas; Martello, Alessandra; Polleres, Axel (Springer, 2009)
    RDF Schema (RDFS) as a lightweight ontology language is gaining popularity and, consequently, tools for scalable RDFS inference and querying are needed. SPARQL has become recently aW3C standard for querying RDF data, ...
  • 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 ...
  • An Empirical Investigation of Networks in the Blogosphere 

    Bojars, Uldis; Harth, Andreas; Kinsella, Sheila (2007)
    We seek out to investigate the social networks manifested in weblogs. Our dataset, derived from an initial list of URIs, consists of 3.9M files in XML or RDF format, totaling over 400M statements in RDF. We continue ...
  • Enabling Trust and Privacy on the Social Web 

    Passant, Alexandre; Hausenblas, Michael; Polleres, Axel; Decker, Stefan (2009)
  • Entailment for Domain-restricted RDF 

    Polleres, Axel (Springer, 2008)
    We introduce domain-restricted RDF (dRDF) which allows to associate an RDF graph with a fixed, finite domain that interpretations for it may range over. We show that dRDF is a real extension of RDF and discuss impacts on ...
  • The ExpertFinder Corpus 2007 for the Benchmarking and Development of ExpertFinding Systems 

    Hogan, Aidan; Harth, Andreas (2007)
    We provide a benchmark dataset for expert finding within the computer science domain. We show how large isolated data graphs from disparate structured data sources can be combined to form one, large, well-linked RDF graph ...
  • Exposing Semantic Web Service principles in SOA to solve EAI scenarios 

    Haller, Armin; Gomez, Juan Miguel; Bussler, Christoph (2005)
    Traditional Enterprise Application Integration (EAI) focuses on the integration of application interfaces by pipelining different middle- ware technologies like message queuing or remote method invocations. Web Service ...
  • Extending faceted navigation for RDF data 

    Oren, Eyal; Delbru, Renaud; Decker, Stefan (2006)
    Data on the Semantic Web is semi-structured and does not follow one fixed schema. Faceted browsing is a natural technique for navigating such data, partitioning the information space into orthogonal conceptual dimensions. ...
  • Eye of the Tiger 

    Novacek, Vit; Groza, Tudor; Handschuh, Siegfried; Decker, Stefan (2009)
  • Fast and Scalable Pattern Mining for Media-Type Focused Crawling 

    Umbrich, Jürgen; Karnstedt, Marcel; Harth, Andreas (2009)
    Search engines targeting content other than hypertext documents require a crawler that discovers resources identifying files of certain media types. Naive crawling approaches do not guarantee a sufficient supply of new ...
  • Federating Distributed Social Data to Build an Interlinked Online Information Society 

    Passant, Alexandre; Samwald, Matthias; Breslin, John; Decker, Stefan (2009)
    While research on the relation- ship between the Semantic Web and social media was originally motivated by the lack of semantics in mainstream Web 2.0 ser- vices, this vision can go much further, impacting society at large ...
  • Four Heuristics to Guide Structured Content Crawling 

    Umbrich, Jürgen; Harth, Andreas; Hogan, Aidan; Decker, Stefan (2008)
    Search engines focusing on particular media types face difficulties in discovering suitable URIs on the Web. Since the engines are only interested in a small fraction of the Web, a crawler should use heuristics to concentrate ...
  • From Online Community Data to RDF 

    Bojars, Uldis; Breslin, John (2007)
    Large amounts of data are created within online community sites (forums, blogs, etc.). These can serve as a valuable source of information for web users, and usually contain rich meta-information. Most of this information ...
  • Geographic Routing in Wireless Multimedia Sensor Networks 

    Shu, Lei; Hauswirth, Manfred (IEEE, 2008)
    In this paper, a -Phase geographic GreeTwody Forwarding (TPGF) routing algorithm is proposed in wireless multimedia sensor networks (WMSNs). TPGF is a pure geographic greedy forwarding routing algorithm, which does not ...