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小波网格渐进压缩算法
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作者 求伟 郭伟青 《科技通报》 2006年第6期860-865,870,共7页
对三角网格压缩进行了研究,扩展了基于小波的多决定分析理论,直接对三角网格进行不规则分析。保持网格连通性和几何性基础上,优化改善了曲面逼近质量,提高在每个决定层的压缩率。算法对3D网格连通性和几何性都提供了有效压缩。
关键词 三角网格 曲面重构 渐进网格 小波网格 压缩 多决定层
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OPTIMAL HIERARCHY STRUCTURES FOR MULTI-ATTRIBUTE-CRITERIA DECISIONS 被引量:2
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作者 Stan LIPOVETSKY 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2009年第2期228-242,共15页
A problem of a hierarchy structure optimization is considered.Hierarchical structures arewidely used in the Analytic Hierarchy Process,conjoint analysis,and various other methods of multiplecriteria decision making.Th... A problem of a hierarchy structure optimization is considered.Hierarchical structures arewidely used in the Analytic Hierarchy Process,conjoint analysis,and various other methods of multiplecriteria decision making.The problem consists in finding a structure that needs a minimum number ofpair comparisons for a given total number of the alternatives.For an optimal hierarchy,the minimumefforts are needed for eliciting data and synthesizing the local preferences across the hierarchy to getthe global priorities or utilities.Special estimation techniques are developed and numerical simulationsperformed.Analytical and numerical results suggest optimal ways of priority evaluations for practicalmanagerial decisions in a complex environment. 展开更多
关键词 Analytic Hierarchy Process conjoint analysis hierarchy optimization pair comparisons.
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