【摘要】 传统关系型数据库在表示专家系统中具有嵌套、递归等复杂结构的知识时遇到了困难。对此 ,本文提出了一种采用对象模型的解决方案。该方案在关系数据库的基础上使用映射原理实现了一种面向对象的模型 ,利用该模型可以较好地在数据库中表示各类复杂结构的知识。该方案已经在地震预报专家系统中得到应用 ,并取得了较好的效果更多还原

【Abstract】 Traditional relational databases have difficulty in representing the knowledge with nesting,recursion and other complex structures in expert systems Therefore, this article presents a solution to implementing an object oriented model, which can satisfy the representation of all kinds of knowledge with complex structures by using the mapping theory based on relational databases The solution has been successfully applied to the Next Generation Expert System for Earthquake Prediction更多还原