Model-theoretic Characterizations of Rule-based Ontologies
Summary: Model-theoretic characterizations of tgd-based ontologies (full, linear, guarded, frontier-guarded) via critical instances, direct products, and a novel locality property. Locality yields decision procedures and effective rewritings for frontier-guarded→guarded and guarded→linear tgds. (summarized by gpt-5-mini on Feb 09 2026)
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| 38 | Testing Implications Of Data Dependencies | 1979 | SIGMOD | 0.00075110004 |
| 48 | Data Integration: A Theoretical Perspective | 2002 | PODS | 0.00069720859 |
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