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DLT
2003
13 years 7 months ago
2003
We present different techniques for reducing the number of states and transitions in nondeterministic automata. These techniques are based on the two preorders over the set of st...
DLT
2004
13 years 7 months ago
2004
Abstract. We investigate the generative power of cooperating distributed grammar systems (CDGSs), if the cooperation protocol is based on the level of competence on the underlying ...
DLT
2007
13 years 7 months ago
2007
Visibly Pushdown Automata (VPA) are a special case of pushdown machines where the stack operations are driven by the input. In this paper, we consider VPA with two stacks, namely 2...
RTAS
2007
IEEE
14 years 13 days ago
2007
IEEE
Cluster computing has emerged as a new paradigm for solving large-scale problems. To enhance QoS and provide performance guarantees in cluster computing environments, various real...
DLT
2006
13 years 7 months ago
2006
Duplication is an operation generating a language from a single word by iterated application of rewriting rules u uu on factors. We extend this operation to entire languages and i...