Now showing items 1-3 of 3

    • CORNER: A Completeness Reasoner for SPARQL Queries Over RDF Data Sources 

      Darari, F; Prasojo, RE; Nutt, W (Springer, 2014)
      With the increased availability of data on the Semantic Web, the question whether data sources offer data of appropriate quality for a given purpose becomes an issue. With CORNER, we specifically address the data quality ...
    • Enabling Fine-grained RDF Data Completeness Assessment 

      Darari, F; Razniewski, S; Prasojo, RE; Nutt, W (Springer, 2016)
      Nowadays, more and more RDF data is becoming available on the Semantic Web. While the Semantic Web is generally incomplete by nature, on certain topics, it already contains complete information and thus, queries may return ...
    • Expressing No-Value Information in RDF 

      Darari, F; Prasojo, RE; Nutt, W (CEUR Workshop Proceedings, 2015)
      RDF is a data model to represent positive information. Consequently, it is not clear how to represent the non-existence of information in RDF. We present a technique to express such information in RDF and incorporate it ...