水工结构设计专家系统中的知识表示和推理

Knowledge representation and inference in expert systems for hydraulic structure design

从分析水工设计的实际过程及其特点入手，提出便于实现工程设计专家 系统的知识表示，并给出了相应的推理方法．在一项工程设计中，专家经验的 发挥主要体现在概念设计阶段和方案修改阶段．提出用因果关联表和趋势关 联表来模拟实现专家提出初始方案的过程和进行方案调整的过程，并给出了 建造水工结构设计专家系统所需要的较系统的知识表示和推理方法．

Starting from an investigation into the real process of hydraulic structure design , this paper puts forth, with its characteristics being analysed, some forms of knowledge representation for engineering design expert systems. The corresponding inference methods are also been studied. Experts' knowledge and thumb rules play their part mainly in the concept design stage and plan modification stage of a design project. This paper gives a new kind of knowledge representatin, association tables, to resemble experts in synthesizing designs and modifying plans. Along with association tables, other complementory representations and inference methods are also adopted and modified to serve the building of a hydraulic structure design expert system.