Answering Regular Path Queries Under Approximate Semantics in Lightweight Description Logics

Publikation: Beitrag in Buch/Konferenzbericht/Sammelband/GutachtenBeitrag in KonferenzbandBeigetragenBegutachtung

Beitragende

Abstract

Classical regular path queries (RPQs) can be too restrictive for some applications and answering such queries under approximate semantics to relax the query is desirable. While for answering regular path queries over graph databases under approximate semantics algorithms are available, such algorithms are scarce for the ontology-mediated setting. In this paper we extend an approach for answering RPQs over graph databases that uses weighted transducers to approximate paths from the query in two ways. The first extension is to answering approximate conjunctive two-way regular path queries (C2RPQs) over graph databases and the second is to answering C2RPQs over ELH and DL-LiteR ontologies. We provide results on the computational complexity of the underlying reasoning problems and devise approximate query answering algorithms.

Details

OriginalspracheEnglisch
Titel35th AAAI Conference on Artificial Intelligence, AAAI 2021
Herausgeber (Verlag)AAAI Press
Seiten6340-6348
Seitenumfang9
PublikationsstatusVeröffentlicht - 2021
Peer-Review-StatusJa

Konferenz

TitelThirty-Fifth AAAI Conference on Artificial Intelligence
KurztitelAAAI-21
Dauer2 - 9 Februar 2021
BekanntheitsgradInternationale Veranstaltung
StadtVirtual

Externe IDs

Scopus 85130026037

Schlagworte

ASJC Scopus Sachgebiete