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题名:
a comparative study of tf*idf, lsi and multi-words for text classification
作者: Zhang Wen ; Yoshida Taketoshi ; Tang Xijin
关键词: Data mining ; Indexing (of information) ; Information retrieval ; Natural language processing systems
刊名: Expert Systems with Applications
发表日期: 2011
卷: 38, 期:3, 页:2758-2765
收录类别: ei
部门归属: (1) Laboratory for Internet Software Technologies, Institute of Software, Chinese Academy of Sciences, Beijing 100190, China; (2) School of Knowledge Science, Japan Advanced Institute of Science and Technology, 1-1 Ashahidai, Nomi, Ishikawa 923-1292, Japan; (3) Institute of Systems Science, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing 100190, China
英文摘要: One of the main themes in text mining is text representation, which is fundamental and indispensable for text-based intellegent information processing. Generally, text representation inludes two tasks: indexing and weighting. This paper has comparatively studied TFIDF, LSI and multi-word for text representation. We used a Chinese and an English document collection to respectively evaluate the three methods in information retreival and text categorization. Experimental results have demonstrated that in text categorization, LSI has better performance than other methods in both document collections. Also, LSI has produced the best performance in retrieving English documents. This outcome has shown that LSI has both favorable semantic and statistical quality and is different with the claim that LSI can not produce discriminative power for indexing. © 2010 Elsevier Ltd. All rights reserved.
语种: 英语
WOS记录号: WOS:000284863200158
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内容类型: 期刊论文
URI标识: http://ir.iscas.ac.cn/handle/311060/14095
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
Zhang Wen,Yoshida Taketoshi,Tang Xijin. a comparative study of tf*idf, lsi and multi-words for text classification[J]. Expert Systems with Applications,2011-01-01,38(3):2758-2765.
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