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Complexity of Arithmetic in Warded Datalog+-
[article]
2022
arXiv
pre-print
Warded Datalog+- extends the logic-based language Datalog with existential quantifiers in rule heads. Existential rules are needed for advanced reasoning tasks, e.g., ontological reasoning. The theoretical efficiency guarantees of Warded Datalog+- do not cover extensions crucial for data analytics, such as arithmetic. Moreover, despite the significance of arithmetic for common data analytic scenarios, no decidable fragment of any Datalog+- language extended with arithmetic has been identified.
arXiv:2202.05086v1
fatcat:dnhm5jem2resri7mvrvrm7cssa