%0 Journal Article %T Fast Processing of SPARQL Queries on RDF Quadruples %A Vasil Slavov %A Anas Katib %A Praveen Rao %A Srivenu Paturi %A Dinesh Barenkala %J Computer Science %D 2015 %I arXiv %X In this paper, we propose a new approach for fast processing of SPARQL queries on large RDF datasets containing RDF quadruples (or quads). Our approach called RIQ employs a decrease-and-conquer strategy: Rather than indexing the entire RDF dataset, RIQ identifies groups of similar RDF graphs and indexes each group separately. During query processing, RIQ uses a novel filtering index to first identify candidate groups that may contain matches for the query. On these candidates, it executes optimized queries using a conventional SPARQL processor to produce the final results. Our initial performance evaluation results are promising: Using a synthetic and a real dataset, each containing about 1.4 billion quads, we show that RIQ outperforms RDF-3X and Jena TDB on a variety of SPARQL queries. %U http://arxiv.org/abs/1506.01333v1