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Direction-independent grammars with contexts

โœ Scribed by Kunio Aizawa; Akira Nakamura


Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
797 KB
Volume
40
Category
Article
ISSN
0020-0255

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๐Ÿ“œ SIMILAR VOLUMES


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Simulating finite automata with context-
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We consider simulating finite automata (both deterministic and nondeterministic) with context-free grammars in Chomsky normal form (CNF). We show that any unary DFA with n states can be simulated by a CNF grammar with O(n 1/3 ) variables, and this bound is tight. We show that any unary NFA with n st

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โœ A. Meduna; D. Kolรกล™ ๐Ÿ“‚ Article ๐Ÿ“… 2002 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 70 KB

A homogeneous production has its left-hand side formed by a non-empty string of identical nonterminals. A phrase-structure grammar is homogeneous if each of its productions is homogeneous. The present paper discusses the reduction of homogeneous grammars with respect to the number of non-context-fre