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APIN
2005
94views more  APIN 2005»
13 years 7 months ago
Extension of Petri Nets for Representing and Reasoning with Tasks with Imprecise Durations
This paper presents an extension of Petri net framework with imprecise temporal properties. We use possibility theory to represent imprecise time by time-stamping tokens and assig...
Stanislav Kurkovsky, Rasiah Loganantharaj
ER
2010
Springer
168views Database» more  ER 2010»
13 years 6 months ago
Complexity of Reasoning over Temporal Data Models
Abstract. We investigate the computational complexity of reasoning over temporal extensions of conceptual data models. The temporal conceptual models we analyse include the standar...
Alessandro Artale, Roman Kontchakov, Vladislav Ryz...
CORR
2011
Springer
187views Education» more  CORR 2011»
12 years 11 months ago
Backdoors to Tractable Answer-Set Programming
We present a unifying approach to the efļ¬cient evaluation of propositional answer-set programs. Our approach is based on backdoors which are small sets of atoms that represent ā...
Johannes Klaus Fichte, Stefan Szeider
AIPS
2006
13 years 9 months ago
On Some Tractable Cases of Logical Filtering
Filtering denotes any method whereby an agent updates its belief state--its knowledge of the state of the world--from a sequence of actions and observations. In logical filtering,...
T. K. Satish Kumar, Stuart J. Russell
AIME
2007
Springer
14 years 1 months ago
Replacing SEP-Triplets in SNOMED CT Using Tractable Description Logic Operators
Reiļ¬cation of parthood relations according to the SEP-triplet encoding pattern has been employed in the clinical terminology SNOMED CT to simulate transitivity of the part-of rel...
Boontawee Suntisrivaraporn, Franz Baader, Stefan S...