Normalisations of Existential Rules: Not so Innocuous!

Autor: David Carral, Lucas Larroque, Marie-Laure Mugnier, Michaël Thomazo

Publikováno v: KR 2022-19th International Conference on Principles of Knowledge Representation and Reasoning
KR 2022-19th International Conference on Principles of Knowledge Representation and Reasoning, Jul 2022, HaÏfa, Israel. pp.102-111, ⟨10.24963/kr.2022/11⟩

Existential rules are an expressive knowledge representation language mainly developed to query data. In the literature, they are often supposed to be in some normal form that simplifies technical developments. For instance, a common assumption is th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::627c0cf3a04dc0193dcd50ae94541983
https://hal-lirmm.ccsd.cnrs.fr/lirmm-03762686

Characterizing Boundedness in Chase Variants

Autor: Marie-Laure Mugnier, Michel Leclère, Stathis Delivorias, Federico Ulliana

Publikováno v: Theory and Practice of Logic Programming
Theory and Practice of Logic Programming, Cambridge University Press (CUP), 2021, 21 (1), pp.51-79. ⟨10.1017/S1471068420000083⟩
Theory and Practice of Logic Programming, 2021, 21 (1), pp.51-79. ⟨10.1017/S1471068420000083⟩

Existential rules are a positive fragment of first-order logic that generalizes function-free Horn rules by allowing existentially quantified variables in rule heads. This family of languages has recently attracted significant interest in the context

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33fef111f6b142b2a312c772b9b46612
https://doi.org/10.1017/s1471068420000083

Revisiting RDF storage layouts for efficient query answering

Autor: Maxime Buron, François Goasdoué, Ioana Manolescu, Tayeb Merabti, Marie-Laure Mugnier

Publikováno v: SSWS 2020-13th International Workshop on Scalable Semantic Web Knowledge Base Systems
SSWS 2020-13th International Workshop on Scalable Semantic Web Knowledge Base Systems, Nov 2020, Athène, Greece
HAL

International audience; The performance of query answering in an RDF database strongly depends on the data layout, that is, the way data is split in persistent data structures. We consider answering Basic Graph Pattern Queries (BGPQs), and in particu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::6bbe923c880610b2892054ac60accaa3
https://inria.hal.science/hal-02921457/document

Ontology-Based RDF Integration of Heterogeneous Data

Autor: Maxime Buron, François Goasdoué, Ioana Manolescu, Marie-laure Mugnier

Publikováno v: EDBT/ICDT 2020-23rd International Conference on Extending Database Technology
EDBT/ICDT 2020-23rd International Conference on Extending Database Technology, Mar 2020, Copenhagen, Denmark
[Technical Report] LIX, Ecole polytechnique; Inria Saclay. 2019
HAL
Advances in Database Technology-EDBT 2020, 23rd International Conference on Extending Database Technology, Copenhagen, Denmark, March 30-April 02, Proceedings
EDBT 2020-23rd International Conference on Extending Database Technology
EDBT 2020-23rd International Conference on Extending Database Technology, Mar 2020, Copenhagen, Denmark. pp.299-310, ⟨10.5441/002/edbt.2020.27⟩

International audience; The proliferation of heterogeneous data sources in many application contexts brings an urgent need for expressive and efficient data integration mechanisms. There are strong advantages to using RDF graphs as the integration fo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::a05489cb9f86a357d7298a2c565fa767
https://hal.inria.fr/hal-02446427

Reformulation-based query answering for RDF graphs with RDFS ontologies

Autor: François Goasdoué, Marie-Laure Mugnier, Maxime Buron, Ioana Manolescu

Publikováno v: 16th European Semantic Web Conference
ESWC 2019-European Semantic Web Conference
ESWC 2019-European Semantic Web Conference, Jun 2019, Portoroz, Slovenia
HAL
16th International Conference, ESWC 2019, Portorož, Slovenia, June 2–6, 2019, Proceedings
ESWC 2019-16th European Semantic Web Conference
ESWC 2019-16th European Semantic Web Conference, Jun 2019, Portoroz, Slovenia. pp.19-35, ⟨10.1007/978-3-030-21348-0_2⟩
The Semantic Web ISBN: 9783030213473
ESWC

International audience; Query answering in RDF knowledge bases has traditionally been performed either through graph saturation, i.e., adding all implicit triples to the graph, or through query reformulation, i.e., modifying the query to look for the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::912945e93e97c4e577e04ef2377db48c
https://hal.archives-ouvertes.fr/hal-02051413