Querying semantic data on the Web.

Abstract

The Semantic Web is the initiative of the W3C to make information on the Web readable not only by humans but also by machines. RDF is the data model for Semantic Web data, and SPARQL is the standard query language for this data model. In recent years, we have witnessed a constant growth in the amount of RDF data available on the Web, which has motivated the theoretical study of fundamental aspects of RDF and SPARQL.
The goal of this paper is two-fold: to introduce SPARQL, which is a fundamental technology for the development of the Semantic Web, and to present some interesting
and non-trivial problems on RDF data management at a Web scale, that we think the database community should address.