Small NFAs from Regular Expressions: Some Experimental Results
Formal Languages and Automata Theory
2010-09-21 v1
Abstract
Regular expressions (res), because of their succinctness and clear syntax, are the common choice to represent regular languages. However, efficient pattern matching or word recognition depend on the size of the equivalent nondeterministic finite automata (NFA). We present the implementation of several algorithms for constructing small epsilon-free NFAss from res within the FAdo system, and a comparison of regular expression measures and NFA sizes based on experimental results obtained from uniform random generated res. For this analysis, nonredundant res and reduced res in star normal form were considered.
Keywords
Cite
@article{arxiv.1009.3599,
title = {Small NFAs from Regular Expressions: Some Experimental Results},
author = {Hugo Gouveia and Nelma Moreira and Rogério Reis},
journal= {arXiv preprint arXiv:1009.3599},
year = {2010}
}
Comments
Proceedings of 6th Conference on Computability in Europe (CIE 2010), pages 194-203, Ponta Delgada, Azores, Portugal, June/July 2010