基于粗糙集理论的Web工艺网页智能搜索

Intelligent Search of the Process Web Pages Based on Rough Sets

将工艺设计属性关键词分类,制成工艺知识Web网页。应用粗糙集相关理论,可以通过上、下近似集以及近似精度对工艺知识网页进行智能搜索,并且根据搜索得到的工艺网页创建用户工艺知识网页兴趣树,提供给工艺规划人员。调整近似精度的阈值,可以控制搜索得到的网页多少和工艺网页的搜索树状结构。

The keywords of process planning knowledge can be classified to form various types of process planning knowledge Web pages. These Web pages can be searched intelligently by using lower and upper approximate sets and the approximate accuracy of rough set theory. Then, a process knowledge interest tree can be created according to the result paget and provided to help the engineer. Furthermore, by adjusting the threshold of the approximate accuracy, the structure of user＇ s interesting tree and the amount of result pages can be regulated.