| 引用本文： |
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孔庆燕,金龙.粗糙集理论在区域降水预报中的应用研究[J].广西科学院学报,2007,23(3):147-149,159. [点击复制]
- KONG Qing-yan,JIN Long.Application of Rough Set Theory to Regional Mean Rainfall Forecast[J].Journal of Guangxi Academy of Sciences,2007,23(3):147-149,159. [点击复制]
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| 摘要: |
| 用粗糙集属性约简方法选择出比较合理的预报因子组合,建立广西东南部区域日平均降水量的预报方程(预报时效为24h),并进行2006年5~6月的前汛期逐日业务预报应用试验。结果表明,采用属性约简方法建立的预报方程比传统的逐步回归预报方程有更高的预报精度,具有较好的业务应用前景。 |
| 关键词: 粗糙集 属性约简 逐步回归 区域平均降水量 |
| DOI： |
| 投稿时间：2007-03-12修订日期：2007-06-18 |
| 基金项目:国家科技部社会公益性研究专项项目(2004DIB3J122);广西科学研究与技术发展计划项目(桂攻关:0592005-2A)资助 |
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| Application of Rough Set Theory to Regional Mean Rainfall Forecast |
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KONG Qing-yan1, JIN Long2
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| (1.Department of Computer, Guilin College of Aerospace Technology, Guilin, Guangxi, 541004, China;2.Guangxi Institute of Meteorological Disaster Mitigation, Nanning, Guangxi, 530022, China) |
| Abstract: |
| Using the attribute reduction method to choose reasonable combination of factors,a regional mean rainfall forecast equation is established for southeast Guangxi.An operational forecasting application test is conducted in May and June before the flood season in 2006.The results show that the new forecast equation produces higher forecast accuracy and better application prospect than traditional stepwise regression equation. |
| Key words: rough set attribute reduction stepwise regression regional mean rainfall |
