Titlebook: Automata Implementation; Third International Jean-Marc Champarnaud,Djelloul Ziadi,Denis Maurel Conference proceedings 1999 Springer-Verlag

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Conference proceedings 1999versity of Rouen, France. Automata theory is the cornerstone of computer science theory. While there is much practical experience with using automata, this work covers diverse - eas,includingparsing,computationallinguistics,speechrecognition,textsear- ing,device controllers,distributed systems, andp

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Extended Context-Free Grammars and Normal Form Algorithms,mar. Our results generalize known bounds for context-free grammars but do so in nontrivial ways. Specifically, we introduce a new representation scheme for extended context-free grammars (the symbol-threaded expression forest), a new normal form for these grammars (dot normal form) and new regular expression algorithms.

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Implementing Reversed Alternating Finite Automaton (r-AFA) Operations, in [.]. Experiments show that the new algorithms can significantly reduce the state size of the resulting r- AFA. We also show how we have improved the DFA-to-AFA transformation algorithm which was described in [.]. The average run time of this transformation using the modified algorithm has improved significantly (by 97 percent).

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Extended Context-Free Grammars and Normal Form Algorithms,f right-hand sides for each nonterminal in such a grammar is a regular set. The study is motivated by the implementation project GraMa which will provide a C++ toolkit for the symbolic manipulation of context-free objects just as Grail does for regular objects. The results are that all transformatio

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