关键词: 变型设计, 知识推送, 序列模式挖掘, 知识使用行为

Abstract: To increase the automaticity of recommendation and reduce the labor costs in product variant design,a new method of knowledge recommendation was presented.The frequent knowledge sequence technology was used to analyze historical knowledge usage data of designers with sequential pattern mining technique,and the corresponding frequent knowledge sequence of design task was recognized.In the process of product design,the knowledge recommendation was realized by combining the designers knowledge usage behavior with the support degree of frequent knowledge sequences and the similarity between current knowledge sequence and frequent knowledge sequences.According to the proposed knowledge recommending method,a component was developed based on Product Data Management (PDM),which was applied in a company which produces explosion-proof electric machine.The statistics showed that the component was helpful to increase the design efficiency.

Key words: variant design, knowledge recommendation, sequential pattern mining, knowledge usage behavior