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PADL
2010
Springer
16 years 1 months ago
Implementing Query Answering for Hybrid MKNF Knowledge Bases
Abstract. Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rule...
Ana Sofia Gomes, José Júlio Alferes,...
179
Voted
CORR
2011
Springer
186views Education» more  CORR 2011»
14 years 11 months ago
A Goal-Directed Implementation of Query Answering for Hybrid MKNF Knowledge Bases
Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rules use non...
Ana Sofia Gomes, José Júlio Alferes,...
STOC
2012
ACM
221views Algorithms» more  STOC 2012»
13 years 6 months ago
From query complexity to computational complexity
We consider submodular optimization problems, and provide a general way of translating oracle inapproximability results arising from the symmetry gap technique to computational co...
Shahar Dobzinski, Jan Vondrák
VSTTE
2012
Springer
13 years 11 months ago
Infeasible Code Detection
A piece of code in a computer program is infeasible if it cannot be part of any normally-terminating execution of the program. We develop an algorithm for the automatic detection o...
Cristiano Bertolini, Martin Schäf, Pascal Sch...
166
Voted
ISPAN
2009
IEEE
15 years 10 months ago
SoCQ: A Framework for Pervasive Environments
Abstract—Querying non-conventional data sources is recognized as a major issue in new environments and applications such as those occurring in pervasive computing. A key issue is...
Yann Gripay, Frédérique Laforest, Je...