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A General Datalog-Based Framework for Tractable Query Answering over Ontologies

Summary: Introduces Datalog+-: a family of Datalog extensions with existential variables in rule heads and syntactic restrictions that guarantee tractable ontology query answering. Generalizes DL-Lite, admits stratified negation while preserving tractability, and applies to data integration/exchange. (summarized by gpt-5-mini on Feb 09 2026)

Paper ID
1478
Venue
PODS
Year
2009
Pagerank
8.5196153e-05
Overall Rank
2,481 | 82.98%
DOI
10.1145/1559795.1559809

Incoming Non-self Citations Over Time

Authors

BibTeX Citation

@inproceedings{cali_pods09,
        address = {New York, NY, USA},
        series = {{PODS} '09},
        title = {{A General Datalog-Based Framework for Tractable Query Answering over Ontologies}},
        url = {https://dl.acm.org/doi/10.1145/1559795.1559809},
        doi = {10.1145/1559795.1559809},
        booktitle = {Proceedings of the {ACM} {SIGMOD} Symposium on {Principles} of {Database} {Systems}},
        publisher = {Association for Computing Machinery},
        author = {Calì, Andrea and Gottlob, Georg and Lukasiewicz, Thomas},
        year = {2009}
}

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