Contained rewriting and maximal contained rewriting of tree pattern queries using views have been studied recently for the class of tree patterns involving /, //, and []. Given que...
Abstract. Non-trivial retrieval applications involve complex computations on large multi-dimensional datasets. These should, in principle, benefit from the use of relational datab...
Alex van Ballegooij, Roberto Cornacchia, Arjen P. ...
Abstract. Often, qualitative values have an ordering, such as (veryshort, short, medium-height, tall) or a hierarchical level, such as (TheWorld, Europe, Spain, Madrid), which are ...
Exceptionally large amounts of both distributed data and computational resources are becoming available through the Grid. This will enable efficient exchange and processing of very...
—In this paper RDFStats is introduced, which is a generator for statistics of RDF sources like SPARQL endpoints and RDF documents. RDFStats does not only provide a statistics gen...