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ARTMED
2006
80views more  ARTMED 2006»
13 years 8 months ago
A formal theory for spatial representation and reasoning in biomedical ontologies
Objective: The objective of this paper is to demonstrate how a formal spatial theory can be used as an important tool for disambiguating the spatial information embodied in biomed...
Maureen Donnelly, Thomas Bittner, Cornelius Rosse
SYNTHESE
2010
99views more  SYNTHESE 2010»
13 years 6 months ago
Vagueness, uncertainty and degrees of clarity
The focus of the paper is on the logic of clarity and the problem of higherorder vagueness. We first examine the consequences of the notion of intransitivity of indiscriminabilit...
Paul Égré, Denis Bonnay
PODS
2006
ACM
104views Database» more  PODS 2006»
14 years 8 months ago
Tractable database design through bounded treewidth
Given that most elementary problems in database design are NP-hard, the currently used database design algorithms produce suboptimal results. For example, the current 3NF decompos...
Georg Gottlob, Reinhard Pichler, Fang Wei
LPNMR
2009
Springer
14 years 2 months ago
Casting Away Disjunction and Negation under a Generalisation of Strong Equivalence with Projection
Abstract. In answer-set programming (ASP), many notions of program equivalence have been introduced and formally analysed. A particular line of research in this direction aims at s...
Jörg Pührer, Hans Tompits
ICIW
2008
IEEE
14 years 2 months ago
DBOWL: Towards a Scalable and Persistent OWL Reasoner
—With the increasing development of real applications using Semantic Web Technologies, it is necessary to provide scalable and efficient ontology querying and reasoning systems....
María del Mar Roldán García, ...