According to the characters of traditional expert system and neural network, a neutral - network - based mixed fault diagnosis expert system was designed.
针对传统专家系统和神经网络的各自特点，将两者有机结合，构造了一种基于神经网络的混合型故障诊断专家系统。
Teaching knowledge of expert system can be shown by the neural rules, which comes into being based on calculated symbols of neural system, one of the mixed systems.
而专家系统中的教学知识则用神经规则来表示，该规则是一种根据神经计算集成的符号规则，属于混合规则中的一种。
The correspond to oil field experience expert system knowledge base and expression have been established, positive and negative mixed inference control strategies have been designed in this system.
根据系统改造设计中所需的领域知识，建立了相应的专家系统知识库及表达形式，设计出正反混合推理的控制策略。
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