节点文献
高维PP时间序列分析在地震预报中的应用
APPLICATION OF HIGH-DIMENSIONAL TIME SERIES ANALYSIS WITH PROJECTION PURSUIT IN EARTHQUAKE PREDICTION
【摘要】 将投影寻踪(PP)与高维时间序列分析结合起来,建立了地震PP综合预测模型.并选取祁连山地区作研究区,做了未来三个月内最大震级的短期预测.经展望式检验,合格率(预测误差≤0.5或≤10%)≥80%.文中根据实际需要提出建立一定震级门限(M≥4.0)的预测具有更好的效果.本预测模型还可增加自变量、维数和改变时间尺度,并运用到其他领域中.
【Abstract】 Combining Projection Pursuit(PP) and highdimensional time series analysis,the synthetic earthquake prediction model of highdimensional PP time series is built.Selecting Qilian mountain region as research object,its shortterm prediction model of the maximum magnitude within three months is made.The qualified rate of prediction test is more than 80% (Prediction error≤0.5 or ≤10%).In this paper,it is considered that the model with certain magnitude threshold (MS≥4.0) is better accordding to the real cases.It is available for the model to increase parameters,dimensions,change prediction periods,and generalize to prediction in other fields.
【Key words】 Projection pursuit; High-dimensional time series analysis; Earthquake prediction; Regression and pretesting;
- 【文献出处】 西北地震学报 ,Northwestern Seismological Journal , 编辑部邮箱 ,2003年02期
- 【分类号】P315.75
- 【被引频次】9
- 【下载频次】123