It introduces the concrete realization course of the expert system and traverses the inference mechanism based on rule, case, model and hybrid reasoning.
介绍了专家系统的具体实现过程，对基于规则、基于案例、基于模型以及混合推理的推理机制进行了研究。
On the basis of the visual variables of map symbol and the represent grade of map elements, this paper introduces the inference model of point symbol design in map design Expert System.
本文以地图符号的视觉变量和地图要素的表示等级为依据，详细介绍了地图设计专家系统中点状符号设计的推理模型。
The principles of selecting the type, methods, system structure, representation of expert knowledges, design and inference model of a knowledge base and spread of level are discussed.
阐述了该系统的选型原理、方法、系统结构、专家知识表示、知识库设计以及推理模式和可信度传播等问题。
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