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输入变量相关情况下重要性测度指标关系
  • ISSN号：0459-1879
  • 期刊名称：《力学学报》
  • 时间：0
  • 分类：O342[理学—固体力学;理学—力学]
  • 作者机构：[1]西北工业大学航空学院
  • 相关基金：国家自然科学基金(51175425);博士学科点专项科研基金(20116102110003);2013年西北工业大学本科毕业设计(论文)重点扶持资助项目~~
作者： 宋静文[1], 吕震宙[1]
关键词： 重要性测度, 相关变量, 方差分解, 协方差分解, 二次多项式
中文摘要：

为了根据不同需求找到输入变量相关情况下最优重要性测度分析方法,非常有必要对现有重要性测度方法之间的关系进行探究比较.分别以不含交叉项和包含交叉项的二次多项式输出模型为例,解析推导了相关正态输入变量情况下基于协方差分解的重要性测度指标,包括总贡献、结构贡献和相关贡献.进一步以所推导的解析结论为基础,理论推导了传统基于方差的重要性测度指标与基于协方差分解的重要性测度指标之间的关系.并从特殊二次多项式模型的研究结果对一般模型做出推断,然后从高维模型分解的角度验证所推断的结论,并详细阐述了不同重要性测度指标的优缺点.最后结合具体算例深入地分析了各指标之间的关系,为输入变量相关情况下结构性能对输入特性的重要性分析与工程设计提供指导.

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结构系统中主、客观不确定性的传播及重要性测度研究
期刊论文 87 著作 1
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期刊信息
  • 《力学学报》
  • 北大核心期刊（2011版）
  • 主管单位:中国科学院
  • 主办单位:中国力学学会 中国科学院力学研究所
  • 主编：魏悦广
  • 地址：北京市海淀区北四环西路15号中科院力学所内《力学学报》
  • 邮编：100190
  • 邮箱：lxxb@cstam.org.cn
  • 电话：010-62536271
  • 国际标准刊号：ISSN：0459-1879
  • 国内统一刊号：ISSN：11-2062/O3
  • 邮发代号:2-814
  • 获奖情况:
  • 1992年首届自然科技期刊一等奖,1996年国家自然科技期刊二等奖,2000年首届国家期刊奖
  • 国内外数据库收录:
  • 美国数学评论（网络版）,荷兰文摘与引文数据库,美国工程索引,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊（2004版）,中国北大核心期刊（2008版）,中国北大核心期刊（2011版）,中国北大核心期刊（2014版）,中国北大核心期刊（2000版）
  • 被引量:13332