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cloud.google.com·6h ago
AI Research
arXiv CS.AI·Aug 6·5 min read
A General Sufficient Condition for Rewriting Horn-ALCHI Atomic Queries into GQL
TL;DR
A new formalism called DL automata enables the rewriting of Horn-ALCHI atomic queries into GQL, a powerful query language. This approach broadens the applicability of GQL to a significant class of ontology-mediated queries.
✦ Why It Matters
Explore how to implement DL automata for rewriting queries in your ontology-based applications today.
Key Takeaways
- Implement DL automata to enhance query rewriting capabilities.
- Utilize GQL for more complex ontology-mediated queries.
- Explore stratification techniques to manage cyclic dependencies.
- Assess the applicability of this approach in your database systems.
How It Works
DL automata capture the semantics of Horn-ALCHI OMQs by processing runs over sets of facts. By stratifying the states of these automata, specific cyclic dependencies that increase complexity are avoided, allowing for a successful transformation into UC2RPQs.
This enables the rewriting of a broad class of queries into GQL, making them more manageable and efficient.