How Diverse Are Federated Query Execution Plans Really?

Anders Langballe Jakobsen, Gabriela Montoya, Katja Hose

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review


Federated query engines optimize and execute SPARQL queries over the data accessible via SPARQL endpoints; even in the absence of information about which sources provide relevant data. Different query optimization strategies may produce different execution plans, which in many cases explains the huge differences in performance that we encounter with state-of-the-art federated query engines. Related work has so far mainly focused on execution time and number of selected sources, overlooking the importance of the execution plans themselves. In this demonstration paper, we therefore present PIPE, a tool that allows for comparing federated query engines in terms of performance, execution plans, and query answers. Currently, PIPE supports five state-of-the-art federated query engines; we provide a Java library for straightforward integration of additional federated query engines.
TitelThe Semantic Web : ESWC 2019 Satellite Events - ESWC 2019 Satellite Events, Revised Selected Papers
RedaktørerPascal Hitzler, Sabrina Kirrane, Olaf Hartig, Victor de Boer, Stefan Schlobach, Maria-Esther Vidal, Maria Maleshkova, Karl Hammar, Nelia Lasierra, Steffen Stadtmüller, Katja Hose, Ruben Verborgh
Antal sider6
ISBN (Trykt)978-3-030-32326-4
ISBN (Elektronisk)978-3-030-32327-1
StatusUdgivet - 2019
Begivenhed16th International Semantic Web Conference, ESWC 2019 - Portorož, Slovenien
Varighed: 2 jun. 20196 jun. 2019


Konference16th International Semantic Web Conference, ESWC 2019
SponsorElsevier, et al., QualiChain, Semantic Web Company, Siemens, STI International
NavnLecture Notes in Computer Science

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  • Projekter

    Unleashing the Potential of Open Data

    Hose, K.


    Projekter: ProjektForskning

    QWeb: Querying the Web of Data Easily and Efficiently

    Hose, K., Montoya, G., Prado, L. A. G. D., Rouces, J., Mathiassen, K. A. M., Zervakis, E. & Setty, V.


    Projekter: ProjektForskning


    ESWC 2019 Best Demo Award Nomination

    Anders Langballe Jakobsen (Modtager), Montoya, Gabriela (Modtager) & Hose, Katja (Modtager), 2019

    Pris: Konferencepriser


    Jakobsen, A. L., Montoya, G., & Hose, K. (2019). How Diverse Are Federated Query Execution Plans Really? I P. Hitzler, S. Kirrane, O. Hartig, V. de Boer, S. Schlobach, M-E. Vidal, M. Maleshkova, K. Hammar, N. Lasierra, S. Stadtmüller, K. Hose, & R. Verborgh (red.), The Semantic Web: ESWC 2019 Satellite Events - ESWC 2019 Satellite Events, Revised Selected Papers (s. 105-110). Springer. Lecture Notes in Computer Science, Bind. 11762