About Graph and Hypergraph Context Free Grammars

نویسنده

  • SILVIU DUMITRESCU
چکیده

The main idea of this paper is to show some important differences between graph grammars and hypergraph grammars in context of freeness. On the other hand, we give a possibility to transform the planar structure of a hypergraph into a linear one with concern of determinism. This can create a path to transform a pushdown automaton into a generative grammar equivalent. Key-Words: Hyperedge Replacement Grammars, Graph Grammars, Chomsky, Greibach, Context Freeness, Nondeterministic, Deterministic

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تاریخ انتشار 2011