Abstract
The web of data can be seen as a distributed environment hosting structured and linked data based on Semantic Web standards. This is one of the promising features for Semantic Web developers who would benefit from having the possibility to remotely access different RDF repositories, available on the web, in order to collect fragments of information from several sources and combine the resulting parts in an integrated answer. In this paper, we propose an index-based solution, Web of Data Information Integrator (WoDII), to process SPARQL queries over independent data sources without having a prior knowledge of the sources contributing to the answer. By relying on an index, the system avoids non-relevant sources and maps each selected source to a cluster of sub-queries, as a result, network traffic decreases, making the process less dependent on the quality of the connection flow.
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