QEF-LD: A Query Engine for Distributed Query Processing on Linked Data

Abstract: The Web of Linked Data forms a single, globally distributed Web. Querying this dataspace poses new chal-lenges that are not addressed by traditional research on federated query processing. Linked data integration applications must meet the requirements of efficient query processing in the distributed setting. This paper presents QEF-LD, a query engine that enables the efficient execution of federated query over multiple Linked Data sources. Experiments demonstrate the feasibility of QEF-LD when compared to available Federated Query Engines.