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Communication Dans Un Congrès Année : 2023

RAW-JENA: Approximate Query Processing for SPARQL Endpoints

Résumé

Sampling-based Approximate Query Processing (S-AQP) has many important use cases for RDF, including computing large-scale statistics, embeddings, join orderings, approximate aggregations, summaries, and exploratory queries. However, current SPARQL endpoints have no support for S-AQP, and many queries just time out on public SPARQL endpoints. In this demonstration, we present RAW-JENA: an extension of Apache Jena to support S-AQP for conjunctive SPARQL queries relying on random walks. RAW-JENA delivers partial random results and cardinality estimates in a pay-as-you-go fashion.

Domaines

Informatique
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Dates et versions

hal-04250060 , version 1 (19-10-2023)

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  • HAL Id : hal-04250060 , version 1

Citer

Julien Aimonier-Davat, Minh-Hoang Dang, Pascal Molli, Brice Nédelec, Hala Skaf-Molli. RAW-JENA: Approximate Query Processing for SPARQL Endpoints. ISWC'23 : 22nd International Semantic Web Conference, Nov 2023, Athens, Greece. ⟨hal-04250060⟩
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