# Answering Regular Path Queries Over SQ Ontologies

arXiv: https://arxiv.org/abs/2011.08816 · HTML: https://mlsanity.com/paper/2011.08816/

## Key facts

- Cited by 1 papers in the map (data through 14 Oct 2026).
- First posted on arXiv 17 Nov 2020.

## Built on by (most cited first, 1 of 1)

- [Finite Entailment of UCRPQs over ALC Ontologies](https://mlsanity.com/paper/2204.14261/) (2022)

## Abstract (arXiv)

We study query answering in the description logic SQ supporting qualified number restrictions on both transitive and non-transitive roles. Our main contributions are a tree-like model property for SQ knowledge bases and, building upon this, an optimal automata-based algorithm for answering positive existential regular path queries in 2ExpTime.