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FORMATS
2003
Springer
14 years 3 months ago
Causal Time Calculus
We present a process algebra suitable to the modelling of timed concurrent systems and to their efficient verification through model checking. The algebra is provided with two con...
Franck Pommereau
AAECC
1993
Springer
94views Algorithms» more  AAECC 1993»
14 years 2 months ago
Relations Among Lie Formal Series and Construction of Symplectic Integrators
Symplectic integrators are numerical integration schemes for hamiltonian systems. The integration step is an explicit symplectic map. We find symplectic integrators using universa...
Pierre-Vincent Koseleff
VLDB
1987
ACM
100views Database» more  VLDB 1987»
14 years 1 months ago
Optimization of Systems of Algebraic Equations for Evaluating Datalog Queries
A Datalog program can be translated into a system of fixpoint equations of relational algebra; this paper studies how such a system can be solved and optimized for a particular qu...
Stefano Ceri, Letizia Tanca
AIME
2007
Springer
14 years 4 months ago
Replacing SEP-Triplets in SNOMED CT Using Tractable Description Logic Operators
Reification 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...
COOPIS
2003
IEEE
14 years 3 months ago
The Semantics of the Compound Term Composition Algebra
Abstract. In [11], we proposed an algebra with four algebraic operators, whose composition can be used to generate valid compound terms in a given faceted taxonomy in an efficient ...
Yannis Tzitzikas, Anastasia Analyti, Nicolas Spyra...