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2011•Computer Engineering and Applications JournalRequires access

Improved algorithm of BM for pattern matching

Huang Jun

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Abstract

Pattern matching is used in intrusion detection system widely.On the base of analyzing BM algorithm and other algorithms,an improved algorithm of BM is presented.The algorithm uses the BMH algorithm and BMHS algorithm at one time and makes use of combination of the first character and last character of pattern to make the pattern shift.It decreases the time and times of character comparison in the matching process.Experimental data shows the improved algorithm can enhance the matching speed effectively.

About this research paper

What this paper is about

Pattern matching is used in intrusion detection system widely.On the base of analyzing BM algorithm and other algorithms,an improved algorithm of BM is presented.The algorithm uses the BMH algorithm and BMHS algorithm at one time and makes use of combination of the first character and last character of pattern to make the pattern shift.It decreases the time and times of character comparison in the matching process.Experimental data shows the improved algorithm can enhance the matching speed effectively.

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Available abstract

Pattern matching is used in intrusion detection system widely.On the base of analyzing BM algorithm and other algorithms,an improved algorithm of BM is presented.The algorithm uses the BMH algorithm and BMHS algorithm at one time and makes use of combination of the first character and last character of pattern to make the pattern shift.It decreases the time and times of character comparison in the matching process.Experimental data shows the improved algorithm can enhance the matching speed effectively.

Key concepts: Character (mathematics), Matching (statistics), Algorithm, Pattern matching, Computer science, String searching algorithm, Intrusion detection system, Blossom algorithm

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