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Sustainability 2015, 7(4), 3823-3837; doi:10.3390/su7043823

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

1
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
Received: 21 October 2014 / Revised: 11 March 2015 / Accepted: 13 March 2015 / Published: 31 March 2015
(This article belongs to the Section Sustainable Agriculture, Food and Wildlife)
View Full-Text   |   Download PDF [733 KB, uploaded 31 March 2015]   |  

Abstract

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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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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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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