节点文献
用分类回归树方法研究亮温异常变化
A STUDY ON ABNORMALITY BRIGHTNESS BY CLASSIFICATION AND REGRESSION TREE METHODS
【摘要】 利用分类回归树方法研究卫星热红外亮温异常数据和地震震级关系 ,结果显示对地震震级影响的主要因素是最大异常亮温面积 ,可以利用它来构造具有 4个终节点的最优分类树 ,其误判率为 0 .3131,并且该分类树具有很好的稳定性 .
【Abstract】 The relationship between brightness and earthquake magnitude is discussed by means of the classification and regression tree methods. The results show that the main factor affecting the magnitude is the maximum area of abnormality brightness. An optimized classification tree with four terminal nodes can be constructed by using the maximum area, such that the misclassification of the model is 0.3131. And the classification tree has a good robustness.
【关键词】 亮温;
震级;
分类回归树;
【Key words】 brightness; the magnitude of earthquake; classification and regression tree;
【Key words】 brightness; the magnitude of earthquake; classification and regression tree;
【基金】 国家自然科学基金资助项目 (40 0 740 13 )
- 【文献出处】 北京师范大学学报(自然科学版) ,Journal of Beijing Normal University(Natural Science) , 编辑部邮箱 ,2003年02期
- 【分类号】P315.75
- 【被引频次】10
- 【下载频次】277