Abstract
We investigate the data complexity of the satisfiability problem for the very expressive description logic ZOIQ (a.k.a. ALCHbSelfregOIQ) over quasi-forests and establish its NP-completeness. This completes the data complexity landscape for decidable fragments of ZOIQ, and reproves known results on decidable fragments of OWL2 (SR family). Using the same technique, we establish coNEXPTIME-completeness (w.r.t. the combined complexity) of the entailment problem of rooted queries in ZIQ.
Keywords
- Knowledge Representation and Reasoning: KRR: Description logics and ontologies
- Knowledge Representation and Reasoning: KRR: Computational complexity of reasoning
