[1]孙德才[],王晓霞[]. 近似串匹配过滤算法研究[J].计算机技术与发展,2015,25(04):171-176.
　SUN De-cai[],WANG Xiao-xia[]. Research on Filtering Algorithm of Approximate String Matching[J].,2015,25(04):171-176.
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 近似串匹配过滤算法研究()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
25
期数:
2015年04期
页码:
171-176
栏目:
应用开发研究
出版日期:
2015-04-10

文章信息/Info

Title:
 Research on Filtering Algorithm of Approximate String Matching
文章编号:
1673-629X（2015)04-0171-06
作者:
 孙德才[1]; 王晓霞[2]
 1.渤海大学 信息科学与技术学院；2.渤海大学 大学计算机教研部
Author(s):
 SUN De-cai[1];  WANG Xiao-xia[2]
关键词:
 ; 串匹配; 近似串匹配; 过滤算法; q-gram过滤
Keywords:
 ; string matching; approximate string matching; filter algorithm; q-gram filter
分类号:
TP391.3
文献标志码:
A
摘要:
 近似串匹配在众多研究领域都有广泛的应用，如文本检索、生物信息学等。文中对基于过滤技术的Off-line模式近似串匹配算法进行了相关研究。首先介绍了串匹配的基础知识和近似串匹配技术的应用分类；然后阐述了Off-line模式近似串匹配算法常用的索引结构；接着详细介绍了近似串匹配过滤算法的研究现状，并阐述了几个经典过滤算法的过滤原理；最后在实验中对比了这些经典过滤算法的性能差异，实验数据显示提高过滤效率和减少过滤时间是加快过滤算法匹配速度所要解决的关键问题。研究表明，基于留空q-gram的过滤算法是近似串匹配未来研究的方向。
Abstract:
 Approximate string matching is widely used in many areas,such as text retrieval,computational biology,etc. In this paper,a survey on filter-based approximate string matching algorithm of Off-line mode is done. First,the preliminaries of string matching and the classifications of approximate string matching techniques are introduced. Next,some index structures which are often used in Off-line ap-proximate string matching algorithms are illustrated. Then,the research status quo of approximate string matching is described in detail, and some classical filter algorithms are illustrated. Last,the performance of these classical filtering algorithms is given in experiment,and experimental data shows that enhancing filtration efficiency and decreasing filtration time are two key issues of improving matching speed. The research shows that the filter algorithms based on gapped q-gram is a further research direction of approximate string matc-hing.

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更新日期/Last Update: 2015-06-05