Rewriting Queries over Summaries of Big Data Graphs[go to overview]
The objective of this talk is twofold. First, to introduce extended property paths, a significant extension of property paths, the navigational core of SPARQL. Second, to discuss the benefits that navigational queries over existing graph stores (such as RDF databases) can gain from a class of optimisations based on summaries. To make both extended property paths and summaries readily available in RDF stores, a translation from extended property paths to SPARQL queries that can be executed over summaries directly represented in RDF is introduced.
30.10.14 - 09:15