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From regular expressions to smaller NFAs

✍ Scribed by Pedro García; Damián López; José Ruiz; Gloria I. Álvarez


Book ID
113927442
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
316 KB
Volume
412
Category
Article
ISSN
0304-3975

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A lower bound on the size of ε-free NFA
✍ Yuri Lifshits 📂 Article 📅 2003 🏛 Elsevier Science 🌐 English ⚖ 110 KB

Hromkovic et al. showed how to transform a regular expression of size n into an ε-free nondeterministic finite automaton (which defines the same language as the expression) with O(n) states and O(n log 2 (n)) transitions. They also established a lower bound (n log(n)) on the number of transitions. W