【摘要】 重点介绍了零件的表示、索引和相似检索方法。建立了基于事例推理的 CAPP系统的面向对象零件事例表示和检索模型 ,该模型适用于各类零件 ,可以对具有复杂层次结构的事例进行表示并计算相似度。可以在具有不同属性的不同事例之间进行相似性计算 ,解决了异构事例的相似性比较的问题。采用 Visual Basic和 SQL Server实现该模型的原型系统 HOPE- CAPP。更多还原

【Abstract】 This paper focuses on the representation ,indexing and retrieving of process planning cases. A feature-based representation for parts is present .An effective similarity metric is developed to measure the similarity between two parts which have different features or belong to different type of parts. And the most similar case can be retrieved rapidly and correctly. A prototype was developed using SQL Serve 7.0 and VB(Visual Basic) developing tools from Microsoft Inc.更多还原