States constrain-based algorithm for large scale regular expression matching

By analysis of state explosion in deterministic finite automata DFA, a novel algorithm Group2-DFA based on state constrains was proposed to reduce the memory usage. With the state constrains, states in NFA were classified into several groups. Group2-DFA introduces two-level classification and merges...

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Published inTongxin Xuebao Vol. 34; no. 10; pp. 183 - 190
Main Authors He, Wei, Guo, Yun-Fei, Hu, Hong-Chao
Format Journal Article
LanguageChinese
Published Editorial Department of Journal on Communications 01.10.2013
Subjects
Algorithms
automata convert
regular expression
state constrains
state explosion
Online AccessGet full text
ISSN1000-436X
DOI10.3969/j.issn.1000-436x.2013.10.021

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Abstract By analysis of state explosion in deterministic finite automata DFA, a novel algorithm Group2-DFA based on state constrains was proposed to reduce the memory usage. With the state constrains, states in NFA were classified into several groups. Group2-DFA introduces two-level classification and merges NFA and DFA together to a hybrid FA construction. The experiments show that Group2-DFA can reduce memory usage efficiently and keep high throughput with a small increase of memory reading time. With 300 regex rules, Group2-DFA can cut 75% states and achieve 1Gbps throughput.
AbstractList By analysis of state explosion in deterministic finite automata DFA,a novel algorithm Group2-DFA based on state constrains was proposed to reduce the memory usage.With the state constrains,states in NFA were classified into several groups.Group2-DFA introduces two-level classification and merges NFA and DFA together to a hybrid FA construction.The experiments show that Group2-DFA can reduce memory usage efficiently and keep high throughput with a small increase of memory reading time.With 300 regex rules,Group2-DFA can cut 75% states and achieve 1Gbps throughput.
Author He, Wei
Hu, Hong-Chao
Guo, Yun-Fei
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Snippet By analysis of state explosion in deterministic finite automata DFA, a novel algorithm Group2-DFA based on state constrains was proposed to reduce the memory...
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SubjectTerms Algorithms
automata convert
regular expression
state constrains
state explosion
Title States constrain-based algorithm for large scale regular expression matching
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