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CDC
2009
IEEE
169views Control Systems» more  CDC 2009»
14 years 19 days ago
Parametric regret in uncertain Markov decision processes
— We consider decision making in a Markovian setup where the reward parameters are not known in advance. Our performance criterion is the gap between the performance of the best ...
Huan Xu, Shie Mannor
EDBT
2009
ACM
113views Database» more  EDBT 2009»
14 years 2 months ago
Query ranking in probabilistic XML data
Twig queries have been extensively studied as a major fragment of XPATH queries to query XML data. In this paper, we study PXMLRANK query, (Q, k), which is to rank top-k probabili...
Lijun Chang, Jeffrey Xu Yu, Lu Qin
ICDT
2009
ACM
149views Database» more  ICDT 2009»
14 years 8 months ago
Query languages for data exchange: beyond unions of conjunctive queries
The class of unions of conjunctive queries (UCQ) has been shown to be particularly well-behaved for data exchange; its certain answers can be computed in polynomial time (in terms...
Juan Reutter, Marcelo Arenas, Pablo Barceló
SEMWEB
2005
Springer
14 years 1 months ago
Preferential Reasoning on a Web of Trust
Abstract. We introduce a framework, based on logic programming, for preferential reasoning with agents on the Semantic Web. Initially, we encode the knowledge of an agent as a logi...
Stijn Heymans, Davy Van Nieuwenborgh, Dirk Vermeir
HICSS
2003
IEEE
129views Biometrics» more  HICSS 2003»
14 years 1 months ago
Towards an Ontology for e-Document Management in Public Administration - the Case of Schleswig-Holstein
An action research project in the state administration of Schleswig-Holstein (Germany) seeks to answer the following questions: How can we organize and present edocuments so that ...
Ralf Klischewski