Publication Date:
2020
Description:
Aiming at the problem that the assembly body model is difficult to classify and retrieve(large information redundancy and poor data consistency), an assembly body retrieval methodoriented to key structures was presented. In this paper, a decision formal context is transformedfrom the 3D structure model. The 3D assembly structure model of parts is defined by the adjacencygraph of function surface and qualitative geometric constraint graph. The assembly structure iscoded by the linear symbol representation of compounds in chemical database. An importance orcohesion as the weight to a decision-making objective on the context is defined by a rough set method.A weighted concept lattice is introduced on it. An important formal concept means a key structure,since the concept represents the relations between parts’ function surfaces. It can greatly improve thequery efficiency.
Electronic ISSN:
2078-2489
Topics:
Computer Science
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