Constraints (PACs) have been developed. PACs extend the range definition of a property with additional logic expressed with SPARQL …

Access to hundreds of knowledge bases has been made available on the Web through public SPARQL endpoints. Unfortunately … content of a given SPARQL endpoint or, relatedly, find SPARQL endpoints with content relevant to their needs. In this paper …, the authors investigate the feasibility of a system that gathers information about public SPARQL endpoints by querying …

both vocabulary and taxonomy of a programming language source code. SPARQL is a query language based on SQL that extracts …

query these services, the authors use query languages, such as SPARQL, that return two types of results: either a list of …

component (SIB, Semantic Information Broker) where data is stored as RDF graphs, and software agents using SPARQL to update … persistent SPARQL update primitive. The OSGi SIB performance has been evaluated and compared with the reference C implementation …

satisfy the aforementioned requirement. Further, the SPARQL query language for RDF is the foundation of many current … researches about Linked Data querying. However, these SPARQL-based methods cannot fully express the semantics of the query, so … the SPARQL pattern. Firstly, the authors present some new semantic properties for predicates in RDF triples and design a …