Recovering Explanations from Transformed Rule-Based Ontologies
Datalog rules are often used to define ontologies over Knowledge Graphs. Rule reasoners routinely optimise such ontologies by rewriting their rules into a form that can be evaluated more efficiently. These transformations preserve the entailed facts, but not the structure of the underlying derivations. A proof tree under the rewritten rules explains why a fact holds, but does not readily yield an explanation in terms of the original rules. We study the problem of constructing, from a proof of entailment under the rewritten rules, a proof under the original ones: we establish its computational complexity and identify two practically relevant languages for specifying proof transformations.
| Authors | Alex Ivliev, Markus Krötzsch, Maximilian Marx |
|---|---|
| Primary category | cs.LO |
| Published | 31 July 2026 |
| Last updated at source | 31 July 2026 |
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