Ontology-based product knowledge representation and retrieval

被引：2

作者：

State Key Laboratory of CAD and CG, Zhejiang University, Hangzhou 310027, China ^{[1
]}

不详 ^{[2
]}

机构：

[1] State Key Laboratory of CAD and CG, Zhejiang University

[2] College of Software Engineering, Zhejiang University of Technology

来源：

Zhejiang Daxue Xuebao (Gongxue Ban) | 2008年 / 12卷 / 2037-2042+2048期

关键词：

Form-feature; Metadata; Ontology; Retrieval; Standard for the exchange of product model data (STEP);

D O I：

10.3785/j.issn.1008-973X.2008.12.001

中图分类号：

学科分类号：

摘要：

A hierarchical framework for product knowledge management was presented to represent, reuse, share and exchange product knowledge. Integrating the contents in 3D models and product design knowledge, the framework is divided into three levels: metadata layer, ontology layer and application layer. Data in the metadata layer is automatically extracted from standard for the exchange of product model data (STEP) files. The metadata layer is used to precisely navigate for product data. Based on a layered product model, the ontology layer is constructed to represent product data in a general and uniform way. By mapping between form-features extracted from 3D models and ontology concepts, a new retrieval mechanism on the application layer bridgeds the gap between semantic-based approaches and case-based approaches. A prototype system was implemented to demonstrate the feasibility and effectivity of the advanced methodology.

引用

页码：2037 / 2042+2048

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