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Open AccessArticle

Construction of an Early-Warning System for Vegetable Prices Based on Index Contribution Analysis

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College of Public Administration, Huazhong Agricultural University, Wuhan 430070, China
2
College of Informatics, Huazhong Agricultural University, Wuhan 430070, China
3
College of Economics and Management, Huazhong Agricultural University, Wuhan 430070, China
*
Author to whom correspondence should be addressed.
Academic Editor: Marc A. Rosen
Sustainability 2015, 7(4), 3823-3837; https://doi.org/10.3390/su7043823
Received: 21 October 2014 / Revised: 11 March 2015 / Accepted: 13 March 2015 / Published: 31 March 2015
(This article belongs to the Section Sustainable Agriculture)
An early-warning indicator screening method is proposed in order to construct an early-warning system for vegetable prices. Through index contribution analysis and the application of a support vector regression algorithm, we compare the results of early warning before and after index optimization. Experimental results show that the proposed early-warning system was significantly improved after indicator optimization by using index contribution analysis. View Full-Text
Keywords: early warning; vegetable prices; SVR; index contribution analysis early warning; vegetable prices; SVR; index contribution analysis
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Li, Y.; Xia, J.; Li, C.; Zheng, M. Construction of an Early-Warning System for Vegetable Prices Based on Index Contribution Analysis. Sustainability 2015, 7, 3823-3837.

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