The problem of answering SPARQL queries over virtual SPARQL views is commonly encountered in a number of settings, including while enforcing security policies to access RDF data, ...
Wangchao Le, Songyun Duan, Anastasios Kementsietsi...
Graph-theoretic aggregation problems have been considered both in OLAP (grid graph) and XML (tree). This paper gives new results for MIN aggregation in a tree, where we want the M...
Today, information integration has assumed a completely different, complex connotation than what it used to be. The advent of the Internet, the proliferation of information source...
Mass, multi-channel, network access to information requires a solution of several problems related to proper information delivery, including an important problem of adjusting data...
Interoperability has become one of the big problems of e-commerce since it was born. A number of B2B standards like ebXML, UDDI, RosettaNet, xCBL, etc. emerged recently to solve t...