%0 Journal Article
%T Projection Pursuit Model for Evaluating Grade of Flood Disaster Loss<br>评估洪水灾情等级的投影寻踪模型
%A JIN Ju-liang
%A ZHANG Xin-li
%A DING Jing
%A <br>金菊良
%A 张欣莉
%A 丁晶
%J 系统工程理论与实践
%D 2002
%I 
%X In order to test the grade criterions of flood disaster loss, to resolve the non-uniformity problem of evaluation results of disaster loss indexes, and to raise the grade resolution of flood disaster loss, a new model-projection pursuit (PP) model is suggested for evaluating the grade model of flood disaster, where the disaster loss grade is real number. A scheme of PP modeling is also presented to reduce the computational amount, a new function of projection indexes is given, and it is suggested that both the function of projection indexes and the parameters of PP model can be optimized by using a real coding based genetic algorithm. The calculation example shows that the scheme is effective and general, which can be applied to evaluation of many natural disasters.
%K flood disaster loss
%K evaluation
%K projection pursuit
%K genetic algorithm<br>洪水灾情
%K 评估
%K 投影寻踪
%K 遗传算法
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=01BA20E8BA813E1908F3698710BBFEFEE816345F465FEBA5&cid=962324E222C1AC1D&jid=1D057D9E7CAD6BEE9FA97306E08E48D3&aid=89348CA87A2DDABF&yid=C3ACC247184A22C1&vid=BC12EA701C895178&iid=0B39A22176CE99FB&sid=B0EBA60720995721&eid=3986B25773CB6C30&journal_id=1000-6788&journal_name=系统工程理论与实践&referenced_num=27&reference_num=11