| 基于集成产品信息模型的设计资源检索算法 |
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| 引用本文： | 张汝珍,周雄辉. 基于集成产品信息模型的设计资源检索算法[J]. 上海交通大学学报, 2007, 41(8): 1248-1251 |
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| 作者姓名： | 张汝珍 周雄辉 |
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| 作者单位： | 上海交通大学,国家模具CAD工程研究中心,上海,200030;上海交通大学,国家模具CAD工程研究中心,上海,200030 |
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| 摘 要： | 为了提高设计资源的检索精度和效率,提出了一个基于集成产品信息模型的两阶段检索系统.该系统集非几何与几何信息于一体,将检索分为两阶段:基于非几何信息检索,快速定位检索范围;基于几何信息的检索,采用形状统计检索法,抽取零件的矩属性,计算矩的欧氏距离来评估产品之间的相似性.实例验证了该算法具有较好的检索精度.
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| 关 键 词： | 集成产品信息模型 设计资源检索 两阶段检索法 相似性评估 |
| 文章编号： | 1006-2467（2007）08-1248-04 |
| 修稿时间： | 2006-09-07 |
A Design Resource Retrieval Algorithm Based on Integrated Product Information Model |
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| ZHANG Ru-zhen,ZHOU Xiong-hui. A Design Resource Retrieval Algorithm Based on Integrated Product Information Model[J]. Journal of Shanghai Jiaotong University, 2007, 41(8): 1248-1251 |
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| Authors: | ZHANG Ru-zhen ZHOU Xiong-hui |
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| Affiliation: | National Die and Mold CAD Eng. Research Center, ZHOU Xiong-hui Shanghai Jiaotong Univ. , Shanghai 200030, China |
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| Abstract: | A two-phase retrieval system based on integrated product information was put forward to improve the retrieval precision and efficiency of design resource.It integrates both non-geometry and geometry information,and divides the retrieval process into two phases.The first phase reduces the retrieval scope greatly using non-geometry information.The second phase uses the shape statistics method based on geometry information.The moment properties are extracted and then Lnorm distances between moments are computed to assess the similarity of products.Case proved that this algorithm has better retrieval precision. |
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| Keywords: | integrated product information model design resource retrieval two-phase retrieval method similarity assessment |
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