An exact data mining method for finding center strings and all their instances

doi:10.1109/TDKE.2007.1001

CSpace > 数学所

	An exact data mining method for finding center strings and all their instances
	Lu, Ruqian; Jia, Caiyan ; Zhang, Shaofang ; Chen, Lusheng ; Zhang, Hongyu
	2007-04-01
发表期刊	IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
ISSN	1041-4347
卷号	19 期号:4 页码:509-522
摘要	Common substring problems allowing errors are known to be NP-hard. The main challenge of the problems lies in the combinatorial explosion of potential candidates. In this paper, we propose and study a Generalized Center String (GCS) problem, where not only all models (center strings) of any length, but also the positions of all their (degenerative) instances in input sequences are searched for. Inspired by frequent pattern mining techniques in data mining field, we present an exact and efficient method to solve GCS. First, a highly parallelized TRIE-like structure, consensus tree, is proposed. Based on this structure, we present three Bpriori algorithms step by step. Bpriori algorithms can solve GCS with reasonable time and/or space complexities. We have proved that GCS is fixed parameter tractable with respect to fixed symbol set size and fixed length of input sequences. Experiment results on both artificial and real data have shown the correctness of the algorithms and the validity of our complexity analysis. A comparison with some current algorithms for solving Common Approximate Substring problems is also given.
关键词	data mining frequent pattern common approximate substring center string Bpriori algorithm
DOI	10.1109/TDKE.2007.1001
语种	英语
WOS研究方向	Computer Science ; Engineering
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Information Systems ; Engineering, Electrical & Electronic
WOS记录号	WOS:000244332000006
出版者	IEEE COMPUTER SOC
引用统计
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/5025
专题	数学所
通讯作者	Lu, Ruqian
作者单位	1.Acad Sinica, Inst Math, AMSS, Beijing 100080, Peoples R China 2.Fudan Univ, Shanghai Key Lab Intelligent Informat Proc, Shanghai 200433, Peoples R China 3.Acad Sinica, Inst Comp Technol, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Lu, Ruqian,Jia, Caiyan,Zhang, Shaofang,et al. An exact data mining method for finding center strings and all their instances[J]. IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING,2007,19(4):509-522.
APA	Lu, Ruqian,Jia, Caiyan,Zhang, Shaofang,Chen, Lusheng,&Zhang, Hongyu.(2007).An exact data mining method for finding center strings and all their instances.IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING,19(4),509-522.
MLA	Lu, Ruqian,et al."An exact data mining method for finding center strings and all their instances".IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING 19.4(2007):509-522.