A study of supervised term weighting scheme for sentiment analysis

doi:10.1016/j.eswa.2013.10.056

CORC > 北京大学 > 信息科学技术学院

	A study of supervised term weighting scheme for sentiment analysis
	Deng, Zhi-Hong ; Luo, Kun-Hu ; Yu, Hong-Liang
刊名	expert systems with applications
	2014
关键词	Sentiment analysis Term weighting Supervised learning Experimentation Performance TEXT CATEGORIZATION SEARCH TERMS CLASSIFICATION
DOI	10.1016/j.eswa.2013.10.056
英文摘要	Term weighting is a strategy that assigns weights to terms to improve the performance of sentiment analysis and other text mining tasks. In this paper, we propose a supervised term weighting scheme based on two basic factors: Importance of a term in a document (ITD) and importance of a term for expressing sentiment (175), to improve the performance of analysis. For ITD, we explore three definitions based on term frequency. Then, seven statistical functions are employed to learn the ITS of each term from training documents with category labels. Compared with the previous unsupervised term weighting schemes originated from information retrieval, our scheme can make full use of the available labeling information to assign appropriate weights to terms. We have experimentally evaluated the proposed method against the state-of-the-art method. The experimental results show that our method outperforms the method and produce the best accuracy on two of three data sets. (C) 2013 Elsevier Ltd. All rights reserved.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000331019800035&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Computer Science, Artificial Intelligence; Engineering, Electrical & Electronic; Operations Research & Management Science; SCI(E); EI; 10; ARTICLE; zhdeng@cis.pku.edu.cn; 7; 3506-3513; 41
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/152128]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Deng, Zhi-Hong,Luo, Kun-Hu,Yu, Hong-Liang. A study of supervised term weighting scheme for sentiment analysis[J]. expert systems with applications,2014.
APA	Deng, Zhi-Hong,Luo, Kun-Hu,&Yu, Hong-Liang.(2014).A study of supervised term weighting scheme for sentiment analysis.expert systems with applications.
MLA	Deng, Zhi-Hong,et al."A study of supervised term weighting scheme for sentiment analysis".expert systems with applications (2014).