@conference {143,
	title = {Local Closed World Semantics: Keep it simple, stupid!},
	booktitle = {Proceedings of the 24th International Workshop on Description Logics (DL 2011), Barcelona, Spain, July 13-16, 2011},
	volume = {745},
	year = {2011},
	month = {07/2011},
	publisher = {CEUR-WS.org},
	organization = {CEUR-WS.org},
	abstract = {A combination of open and closed-world reasoning (usually called local closed world reasoning) is a desirable capability of knowledge representation formalisms for Semantic Web applications. However, none of the proposals made to date for extending description logics with local closed world capabilities has had any significant impact on applications. We believe that one of the key reasons for this is that current proposals fail to provide approaches which are intuitively accessible for application developers and at the same time are applicable, as extensions, to expressive description logics such as SROIQ, which underlies the Web Ontology Language OWL. In this paper we propose a new approach which overcomes key limitations of other major proposals made to date. It is based on an adaptation of circumscriptive description logics which, in contrast to previously reported circumscription proposals, is applicable to SROIQ without rendering reasoning over the resulting language undecidable.},
	keywords = {circumscription, closed world, decidability, Description Logic},
	url = {http://ceur-ws.org/Vol-745/paper_12.pdf},
	author = {Adila Krisnadhi and Kunal Sengupta and Pascal Hitzler},
	editor = {Riccardo Rosati and Sebastian Rudolph and Michael Zakharyaschev}
}
@conference {142,
	title = {Nominal Schemas for Integrating Rules and Description Logics},
	booktitle = {Proceedings of the 24th International Workshop on Description Logics (DL 2011), Barcelona, Spain, July 13-16, 2011},
	volume = {745},
	year = {2011},
	month = {07/2011},
	publisher = {CEUR-WS.org},
	organization = {CEUR-WS.org},
	abstract = {We propose an extension of SROIQ with nominal schemas which can be used like {\textquotedblleft}variable nominal concepts{\textquotedblright} within axioms. This feature allows us to express arbitrary DL-safe rules in description logic
syntax. We show that adding nominal schemas to SROIQ does not increase its worst-case reasoning complexity, and we identify a family of tractable DLs SROELVn that allow for restricted use of nominal
schemas.},
	url = {http://ceur-ws.org/Vol-745/paper_39.pdf},
	author = {Markus Kr{\"o}tzsch and Frederick Maier and Adila Krisnadhi and Pascal Hitzler},
	editor = {Riccardo Rosati and Sebastian Rudolph and Michael Zakharyaschev}
}
