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FSTTCS
2007
Springer
14 years 2 months ago
2007
Springer
Abstract. Pushdown systems (PDSs) are an automata-theoretic formalism for specifying a class of infinite-state transition systems. Infiniteness comes from the fact that each con...
SACMAT
2006
ACM
14 years 2 months ago
2006
ACM
We present an approach for secure information flow property preserving refinement and transformation of UML inspired interaction diagrams. The approach is formally underpinned b...
EFDBS
2003
13 years 10 months ago
2003
A definition of types in an information system is given from ld abstractions through data constructs, schema and definitions to physical data values. Category theory suggests tha...
CAV
2005
Springer
14 years 2 months ago
2005
Springer
Abstract. In predicate abstraction, exact image computation is problematic, requiring in the worst case an exponential number of calls to a decision procedure. For this reason, sof...
FM
2005
Springer
14 years 2 months ago
2005
Springer
This paper presents an automated and compositional procedure to solve the substitutability problem in the context of evolving software systems. Our solution contributes two techniq...