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In this paper, we survey current parallel processing approaches for SPARQL queries in RDF data. This survey focuses on three important aspects of current 15 SPARQL query engines in performance, namely, system architectures, RDF data storage management, and SPARQL query executive strategies. We classify those 15 engines as three classes of architectures (i.e., cluster, partition, and federation), three...
In this demonstration, we present the gStore RDF triple store. gStore is based on graph encoding and subgraph match, distinct from many other systems. More importantly, it can handle, in a uniform manner, different data types (strings and numerical data) and SPARQL queries with wildcards, aggregate, range and top-k operators over dynamic RDF datasets. We will demonstrate the main features of our system,...
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