Extending Acyclicity Notions for Existential Rules
Jean-François Baget
- Fonction : Auteur
- PersonId : 2418
- IdHAL : jfbaget
- ORCID : 0000-0001-7221-5770
- IdRef : 174121555
Marie-Laure Mugnier
- Fonction : Auteur
- PersonId : 6245
- IdHAL : marie-laure-mugnier
- ORCID : 0000-0002-0574-3693
- IdRef : 129977896
Résumé
Existential rules have been proposed for representing ontological knowledge, specifically in the context of Ontology-Based Query Answering. Entailment with existential rules is undecidable. We focus in this paper on conditions that ensure the termination of a breadth-first forward chaining algorithm known as the chase. First, we propose a new tool that allows to extend existing acyclicity conditions ensuring chase termination, while keeping good complexity properties. Second, we consider the extension to existential rules with nonmonotonic negation under stable model semantics and further extend acyclicity results obtained in the positive case.
Domaines
Intelligence artificielle [cs.AI]| Format du dépôt | Fichier |
|---|---|
| Type de dépôt | Communication dans un congrès |
| Titre |
en
Extending Acyclicity Notions for Existential Rules
|
| Résumé |
en
Existential rules have been proposed for representing ontological knowledge, specifically in the context of Ontology-Based Query Answering. Entailment with existential rules is undecidable. We focus in this paper on conditions that ensure the termination of a breadth-first forward chaining algorithm known as the chase. First, we propose a new tool that allows to extend existing acyclicity conditions ensuring chase termination, while keeping good complexity properties. Second, we consider the extension to existential rules with nonmonotonic negation under stable model semantics and further extend acyclicity results obtained in the positive case.
|
| Auteur(s) |
Jean-François Baget
1
, Fabien Garreau
1
, Marie-Laure Mugnier
1
, Swan Rocher
1
1
GRAPHIK -
Graphs for Inferences on Knowledge
( 388182 )
- LIRMM — Campus Saint Priest – 860 rue de St Priest – 34095 Montpellier
- France
|
| Langue du document |
Anglais
|
| Date de production/écriture |
2014
|
| Source |
21st European Conference on Artificial Intelligence
|
| Vulgarisation |
Non
|
| Comité de lecture |
Oui
|
| Invité |
Non
|
| Audience |
Internationale
|
| Actes |
Oui
|
| Date de publication |
2014-09-11
|
| Volume |
Frontiers in Artificial Intelligence and Applications
|
| Numéro |
263
|
| Page/Identifiant |
39-44
|
| Titre du congrès |
ECAI: European Conference on Artificial Intelligence
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| Date début congrès |
2014-08-18
|
| Date fin congrès |
2014-08-22
|
| Ville |
Prague
|
| Pays |
Tchéquie
|
| Domaine(s) |
|
| Éditeur commercial |
|
| Éditeur scientifique |
|
| Classification ACM 1998 |
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| Projet(s) ANR |
|
| Mots-clés |
en
Acyclicity, Existential Rules
|
| DOI | 10.3233/978-1-61499-419-0-39 |
Origine :
Fichiers produits par l'(les) auteur(s)
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