Axiom pinpointing has been introduced in description logics (DL) to help the user understand the reasons why consequences hold by computing minimal subsets of the knowledge base that have the consequence in question (MinA). Most of the pinpointing algorithms described in the DL literature are obtained as extensions of tableau-based reasoning algorithms for computing consequences from DL knowledge bases. In this paper, we show that automata-based algorithms for reasoning in DLs can also be extended to pinpointing algorithms. The idea is that the tree automaton constructed by the automata-based approach can be transformed into a weighted tree automaton whose so-called behaviour yields a pinpointing formula, i.e., a monotone Boolean formula whose minimal valuations correspond to the MinAs. We also develop an approach for computing the behaviour of a given weighted tree automaton.
Baader, F., & Penaloza, R. (2008). Automata-based Axiom Pinpointing. In Automated Reasoning: 4th International Joint Conference, IJCAR 2008, Sydney, NSW, Australia, August 12-15, 2008, Proceedings (pp.226-241). Springer-Verlag [10.1007/978-3-540-71070-7_19].
|Citazione:||Baader, F., & Penaloza, R. (2008). Automata-based Axiom Pinpointing. In Automated Reasoning: 4th International Joint Conference, IJCAR 2008, Sydney, NSW, Australia, August 12-15, 2008, Proceedings (pp.226-241). Springer-Verlag [10.1007/978-3-540-71070-7_19].|
|Carattere della pubblicazione:||Scientifica|
|Presenza di un coautore afferente ad Istituzioni straniere:||Si|
|Titolo:||Automata-based Axiom Pinpointing|
|Autori:||Baader, F; Penaloza, R|
PENALOZA NYSSEN, RAFAEL (Corresponding)
|Data di pubblicazione:||2008|
|Nome del convegno:||4th International Joint Conference on Automated Reasoning (IJCAR 2008)|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1007/978-3-540-71070-7_19|
|Appare nelle tipologie:||02 - Intervento a convegno|