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DATESO
2008
133views Database» more  DATESO 2008»
15 years 8 months ago
Incox - A Language for XML Integrity Constraints Description
Presently, there is no specialized language for complex integrity constraints description in XML documents. In this paper we present a language that combines first-order logic toge...
Katerina Opocenska, Michal Kopecky
TWEB
2008
66views more  TWEB 2008»
15 years 6 months ago
An environment for flexible advanced compensations of Web service transactions
tions at runtime. We introduce the abstract service and adapter components which allow us to separate the compensation logic from the coordination logic. In this way, we can easily...
Michael Schäfer, Peter Dolog, Wolfgang Nejdl
160
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IANDC
1998
64views more  IANDC 1998»
15 years 6 months ago
Positive Versions of Polynomial Time
We show that restricting a number of characterizations of the complexity class P to be positive (in natural ways) results in the same class of (monotone) problems which we denote ...
Clemens Lautemann, Thomas Schwentick, Iain A. Stew...
DLOG
2009
15 years 4 months ago
Soundness Preserving Approximation for TBox Reasoning in R
Abstract. TBox reasoning in description logics is hard. For example, reasoning in SROIQ (i.e. OWL2-DL) is N2EXPTIME-complete; even with R, a fragment of SROIQ supporting ALC GCIs a...
Yuan Ren, Jeff Z. Pan, Yuting Zhao
IJCAI
2007
15 years 8 months ago
Tractable Temporal Reasoning
Temporal reasoning is widely used within both Computer Science and A.I. However, the underlying complexity of temporal proof in discrete temporal logics has led to the use of simp...
Clare Dixon, Michael Fisher, Boris Konev