Artale, A. and Ryzhikov, V. and Kontchakov, Roman (2012) DL-lite with attributes and datatypes. In: de Raedt, L. and Bessiere, C. and Dubois, D. and Doherty, P. and Frasconi, P. and Heintz, F. and Lucas, P. (eds.) Frontiers in Artificial Intelligence and Applications. Amsterdam, The Netherlands: IOS Press, pp. 61-66. ISBN 9781614990970.
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We extend the DL-Lite languages by means of attributes and datatypes. Attributes -- a notion borrowed from data models -- associate concrete values from datatypes to abstract objects and in this way complement roles, which describe relationships between abstract objects. The extended languages remain tractable (with a notable exception) even though they contain both existential and (a limited form of) universal quantification. We present complexity results for two most important reasoning problems in DL-Lite: combined complexity of knowledge base satisfiability and data complexity of positive existential query answering.
|Item Type:||Book Section|
|School or Research Centre:||Birkbeck Schools and Research Centres > School of Business, Economics & Informatics > Computer Science and Information Systems|
|Depositing User:||Dr Roman Kontchakov|
|Date Deposited:||06 Dec 2012 17:27|
|Last Modified:||13 May 2013 10:16|
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