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Conference Papers Year : 2023

FedShop: A Benchmark for Testing the Scalability of SPARQL Federation Engines

Abstract

While several approaches to query a federation of SPARQL endpoints have been proposed in the literature, very little is known about the effectiveness of these approaches and the behavior of the resulting query engines for cases in which the number of federation members increases. The existing benchmarks that are typically used to evaluate SPARQL federation engines do not consider such a form of scalability. In this paper, we set out to close this knowledge gap by investigating the behavior of 4 state-of-the-art SPARQL federation engines using a novel benchmark designed for scalability experiments. Based on the benchmark, we show that scalability is a challenge for each of these engines, especially with respect to the effectiveness of their source selection & query decomposition approaches. FedShop is freely available online at: https://github.com/GDD-Nantes/FedShop
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Dates and versions

hal-04180506 , version 1 (12-08-2023)

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Minh-Hoang Dang, Julien Aimonier-Davat, Pascal Molli, Olaf Hartig, Hala Skaf-Molli, et al.. FedShop: A Benchmark for Testing the Scalability of SPARQL Federation Engines. ISWC 2023, Nov 2023, Athens, Greece. ⟨10.5281/zenodo.7919872⟩. ⟨hal-04180506⟩
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