RWTH Aachen University
Recently, SPARQL became the standard language for querying RDF (Resource Description Framework) data on the Web. Like other formal query languages, it applies Boolean-match semantics, i.e. results adhere strictly to the query. Thus, queries formulated for one dataset cannot easily be reused for querying other datasets. If another target dataset is to be queried, the queries need to be rewritten using the vocabulary of the target dataset, while preserving the captured information need. This is a tedious manual task, which requires the knowledge of the target vocabulary and often relies on computational expensive techniques, such as mapping, data consolidation or reasoning methods.