Using DragPushing to refine concept index for text categorization

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	Using DragPushing to refine concept index for text categorization
	Cheng, Xueqi ; Tan, Songbo ; Tang, Lilian
刊名	JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
	2006-07-01
卷号	21 期号:4 页码:592-596
关键词	text classification information retrieval machine learning
ISSN号	1000-9000
英文摘要	Concept index (CI) is a very fast and efficient feature extraction (FE) algorithm for text classification. The key approach in CI scheme is to express each document as a function of various concepts (centroids) present in the collection. However, the representative ability of centroids for categorizing corpus is often influenced by so-called model misfit caused by a number of factors in the FE process including feature selection to similarity measure. In order to address this issue, this work employs the "DragPushing" Strategy to refine the centroids that are used for concept index. We present an extensive experimental evaluation of refined concept index (RCI) on two English collections and one Chinese corpus using state-of-the-art Support Vector Machine (SVM) classifier. The results indicate that in each case, RCI-based SVM yields a much better performance than the normal CI-based SVM but lower computation cost during training and classification phases.
WOS研究方向	Computer Science
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000239255200017
内容类型	期刊论文
源URL	[http://119.78.100.204/handle/2XEOYT63/10444]
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Cheng, Xueqi
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Div Intelligent Software Syst, Beijing 100080, Peoples R China 2.Univ Surrey, Dept Comp, Surrey, England
推荐引用方式 GB/T 7714	Cheng, Xueqi,Tan, Songbo,Tang, Lilian. Using DragPushing to refine concept index for text categorization[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2006,21(4):592-596.
APA	Cheng, Xueqi,Tan, Songbo,&Tang, Lilian.(2006).Using DragPushing to refine concept index for text categorization.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,21(4),592-596.
MLA	Cheng, Xueqi,et al."Using DragPushing to refine concept index for text categorization".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 21.4(2006):592-596.