A polynomial time subsumption algorithm for nominal safe ELO⊥ under rational closure

G Casini, U Straccia, T Meyer - Information Sciences, 2019 - Elsevier
Abstract Description Logics (DLs) under Rational Closure (RC) is a well-known framework
for non-monotonic reasoning in DLs. In this paper, we address the concept subsumption …

NoHR: An Overview: Reasoning with Ontologies and Nonmonotonic Rules

V Kasalica, M Knorr, J Leite, C Lopes - KI-Künstliche Intelligenz, 2020 - Springer
Abstract Description logic ontologies, such as ontologies written in OWL, and non-monotonic
rules, as known in Logic Programming, are two major approaches in Knowledge …

[HTML][HTML] On updates of hybrid knowledge bases composed of ontologies and rules

M Slota, J Leite, T Swift - Artificial Intelligence, 2015 - Elsevier
Throughout the last decade, two distinct knowledge representation paradigms have been
standardised to capture rich metadata on the Web: ontology languages based on Classical …

[PDF][PDF] Efficient paraconsistent reasoning with ontologies and rules

T Kaminski, M Knorr, J Leite - Twenty-Fourth International Joint Conference …, 2015 - Citeseer
Logic (DL) based ontologies and nonmonotonic rules provide complementary features
whose combination is crucial in many applications. In hybrid knowledge bases (KBs), which …

Combining rules and ontologies into clopen knowledge bases

L Bajraktari, M Ortiz, M Šimkus - … of the AAAI Conference on Artificial …, 2018 - ojs.aaai.org
Abstract We propose Clopen Knowledge Bases (CKBs) as a new formalism combining
Answer Set Programming (ASP) with ontology languages based on first-order logic. CKBs …

Nohr: Integrating XSB prolog with the OWL 2 profiles and beyond

C Lopes, M Knorr, J Leite - … , LPNMR 2017, Espoo, Finland, July 3-6, 2017 …, 2017 - Springer
We present the latest, substantially improved, version of NoHR, a reasoner designed to
answer queries over hybrid theories composed of an OWL ontology in Description Logics …

Next step for NoHR: OWL 2 QL

N Costa, M Knorr, J Leite - The Semantic Web-ISWC 2015: 14th …, 2015 - Springer
The Protégé plug-in NoHR allows the user to combine an OWL 2 EL ontology with a set of
non-monotonic (logic programming) rules–suitable, eg, to express defaults and exceptions …

What if no hybrid reasoner is available? Hybrid MKNF in multi-context systems

M Knorr, M Slota, J Leite… - Journal of Logic and …, 2014 - ieeexplore.ieee.org
In open environments, agents need to reason with knowledge from various sources,
represented in different languages. Multi-Context Systems (MCSs) allow for the integration …

Evolving bridge rules in evolving multi-context systems

R Gonçalves, M Knorr, J Leite - … Logic in Multi-Agent Systems: 15th …, 2014 - Springer
In open environments, agents need to reason with knowledge from various sources,
represented in different languages. Managed Multi-Context Systems (mMCSs) allow for the …

Telco network inventory validation with nohr

V Kasalica, I Gerochristos, JJ Alferes… - … PA, USA, June 3-7, 2019 …, 2019 - Springer
Network database inventory is a critical tool for the operations of any telecommunication
company, by supporting network configuration and maintenance, as well as troubleshooting …