政大機構典藏-National Chengchi University Institutional Repository(NCCUR):Item 140.119/61586

English | 正體中文 | 简体中文 | Post-Print筆數 : 27 | Items with full text/Total items : 113303/144284 (79%)
Visitors : 50800444 Online Users : 776

RC Version 6.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.

Home ‧ Login ‧ Upload ‧ Help ‧ About ‧ Administer

政大機構典藏 > 資訊學院 > 資訊科學系 > 期刊論文 > Item 140.119/61586

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/61586

Title:	Efficient Frequent Sequence Mining by a Dynamic Strategy Switching Algorithm
Authors:	陳良弼 Chiu, Ding-Ying;Wu,Yi-Hung;Chen,Arbee L. P.
Contributors:	資科系
Keywords:	Data mining;Frequent sequence;Sequence comparison;Strategy switching
Date:	2009.01
Issue Date:	2013-11-11 16:28:38 (UTC+8)
Abstract:	Mining frequent sequences in large databases has been an important research topic. The main challenge of mining frequent sequences is the high processing cost due to the large amount of data. In this paper, we propose a novel strategy to find all the frequent sequences without having to compute the support counts of non-frequent sequences. The previous works prune candidate sequences based on the frequent sequences with shorter lengths, while our strategy prunes candidate sequences according to the non-frequent sequences with the same lengths. As a result, our strategy can cooperate with the previous works to achieve a better performance. We then identify three major strategies used in the previous works and combine them with our strategy into an efficient algorithm. The novelty of our algorithm lies in its ability to dynamically switch from a previous strategy to our new strategy in the mining process for a better performance. Experiment results show that our algorithm outperforms the previous ones under various parameter settings.
Relation:	VLDB Journal, 18(1) , 303-327
Data Type:	article
DOI 連結:	http://dx.doi.org/10.1007/s00778-008-0100-7
DOI:	10.1007/s00778-008-0100-7
Appears in Collections:	[資訊科學系] 期刊論文

Files in This Item:

File	Description	Size	Format
303327.pdf		1394Kb	Adobe PDF2	1206	View/Open

社群 sharing

著作權政策宣告 Copyright Announcement

1.本網站之數位內容為國立政治大學所收錄之機構典藏，無償提供學術研究與公眾教育等公益性使用，惟仍請適度，合理使用本網站之內容，以尊重著作權人之權益。商業上之利用，則請先取得著作權人之授權。
The digital content of this website is part of National Chengchi University Institutional Repository. It provides free access to academic research and public education for non-commercial use. Please utilize it in a proper and reasonable manner and respect the rights of copyright owners. For commercial use, please obtain authorization from the copyright owner in advance.

2.本網站之製作，已盡力防止侵害著作權人之權益，如仍發現本網站之數位內容有侵害著作權人權益情事者，請權利人通知本網站維護人員(nccur@nccu.edu.tw)，維護人員將立即採取移除該數位著作等補救措施。
NCCU Institutional Repository is made to protect the interests of copyright owners. If you believe that any material on the website infringes copyright, please contact our staff(nccur@nccu.edu.tw). We will remove the work from the repository and investigate your claim.

Loading...