{"type":"ScholarlyArticle","title":"A Framework for Reasoning about Dynamic Axioms in Description Logics","authors":[{"name":"Bartosz Bednarczyk","slug":"bartosz-bednarczyk","given":"Bartosz","family":"Bednarczyk","affiliation":"Computational Logic Group , TU Dresden; Institute of Computer Science , University of Wrocław"},{"name":"Stephane Demri","slug":"stephane-demri","given":"Stephane","family":"Demri","affiliation":"LSV , CNRS , ENS Paris-Saclay , Université Paris-Saclay"},{"name":"Alessio Mansutti","slug":"alessio-mansutti","given":"Alessio","family":"Mansutti","affiliation":"LSV , CNRS , ENS Paris-Saclay , Université Paris-Saclay"}],"abstract":"Description logics are well-known logical formalisms for knowledge\r\nrepresentation. We propose to enrich knowledge bases (KBs) with dynamic\r\naxioms  that specify  how the satisfaction of statements from the KBs\r\nevolves when the interpretation is decomposed or recomposed, providing\r\na natural means to predict the evolution of interpretations.\r\nOur dynamic axioms borrow logical connectives from separation logics,\r\nwell-known specification languages to verify programs with\r\ndynamic data structures.\r\nIn the paper, we focus on ALC and EL augmented\r\nwith dynamic axioms, or to their subclass of positive dynamic axioms. \r\nThe knowledge base consistency problem in the presence of dynamic axioms\r\nis investigated, leading to interesting complexity results, among which\r\nthe problem for EL with positive dynamic axioms is tractable,\r\nwhereas EL with dynamic axioms is undecidable.","doi":"10.24963/ijcai.2020/233","url":"https://ijcai.org/proceedings/2020/233","pdf":"https://ijcai.org/proceedings/2020/0233.pdf","markdown":"https://ijcai.org/proceedings/2020/233.md","bibtex":"https://ijcai.org/proceedings/2020/bibtex/233","volume":{"slug":"2020","title":"Proceedings of the Twenty-Ninth International Joint Conference on Artificial Intelligence","short_title":"IJCAI 2020","url":"https://ijcai.org/proceedings/2020/","year":2020,"location":"Yokohama","dates":"January 2021 (postponed from 11-17 July 2020)","editors":"Christian Bessiere","isbn":"978-0-9992411-6-5","publisher":"International Joint Conferences on Artificial Intelligence Organization","doi_prefix":"10.24963/ijcai.2020"},"section":"Knowledge Representation and Reasoning","track":"Main track","number":233,"pages":{"first":1681,"last":1687},"keywords":["Knowledge Representation and Reasoning: Logics for Knowledge Representation","Knowledge Representation and Reasoning: Description Logics and Ontologies"],"videos":[{"label":"Video","url":"https://videos.ijcai20.org/24871/file_24871.m3u8","length_sec":264,"provider":"hls"}],"references":[{"position":1,"raw":"[Baader et al., 2005] F. 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