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» Operational Semantics for MSC'96
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LOPSTR
1997
Springer
15 years 2 months ago
Development of Correct Transformation Schemata for Prolog Programs
Schema-based program transformation [8] has been proposed as an effective technique for the optimisation of logic programs. Schemata are applied to a logic program, mapping ineffi...
Julian Richardson, Norbert E. Fuchs
POPL
2010
ACM
15 years 10 days ago
Programming with angelic nondeterminism
Angelic nondeterminism can play an important role in program development. It simplifies specifications, for example in deriving programs with a refinement calculus; it is the form...
Rastislav Bodík, Satish Chandra, Joel Galen...
ENTCS
2006
98views more  ENTCS 2006»
14 years 10 months ago
A Generic Process Algebra
The three classical process algebras CCS, CSP and ACP present several differences in their respective technical machinery. This is due, not only to the difference in their operato...
Jos C. M. Baeten, Mario Bravetti
ICDE
1994
IEEE
103views Database» more  ICDE 1994»
15 years 2 months ago
A Multi-Set Extended Relational Algebra - A Formal Approach to a Practical Issue
The relational data model is based on sets of tuples, i.e. it does not allow duplicate tuples in a relation. Many database languages and systems do require multi-set place, the hi...
Paul W. P. J. Grefen, Rolf A. de By
IICAI
2007
14 years 11 months ago
Logics for Action
Logics of action, for reasoning about the effects of state change, and logics of belief, accounting for belief revision and update, have much in common. Furthermore, we may underta...
Michael P. Fourman