Journal article
Ontology-mediated queries: Combined complexity and succinctness of rewritings via circuit complexity
- Abstract:
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We give solutions to two fundamental computational problems in ontology-based data access with the W3C standard ontology language OWL 2 QL: the succinctness problem for first-order rewritings of ontology-mediated queries (OMQs) and the complexity problem for OMQ answering. We classify OMQs according to the shape of their conjunctive queries (treewidth, the number of leaves) and the existential depth of their ontologies. For each of these classes, we determine the combined complexity of OMQ an...
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- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Accepted manuscript, pdf, 961.8KB)
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- Publisher copy:
- 10.1145/3191832
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Authors
Funding
+ Agence Nationale de la Recherche
More from this funder
Grant:
Jeunes Chercheuses et Jeunes Chercheurs: 12-JS02-007-01
Bibliographic Details
- Publisher:
- Association for Computing Machinery Publisher's website
- Journal:
- Journal of the ACM Journal website
- Volume:
- 65
- Issue:
- 5
- Publication date:
- 2018-08-01
- Acceptance date:
- 2018-03-01
- DOI:
- EISSN:
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1557-735X
- ISSN:
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0004-5411
- Source identifiers:
-
929664
Item Description
- Keywords:
- Pubs id:
-
pubs:929664
- UUID:
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uuid:cf3a06ae-2384-48b5-99f8-bcc52804a5aa
- Local pid:
- pubs:929664
- Deposit date:
- 2018-11-13
Terms of use
- Copyright holder:
- Association for Computing Machinery
- Copyright date:
- 2018
- Notes:
- © 2018 ACM. This is the accepted manuscript version of the article. The final version is available online from Association for Computing Machinery at: https://doi.org/10.1145/3191832
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