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中文摘要：
案例修改作为案例推理技术的重要环节和难点,存在着修改知识获取困难、修改方法通用性差的问题,结合可拓理论,在运用基元模型实现统一深层次案例描述和相似度检索的基础上,对相似案例进行满意评估,对于评估出的不相容的相似案例,提出了一种基于差异特征的取代式案例可拓修补方法,并将修改后的案例进行筛选评价得到最佳解决方案,从而形成了一套完整的案例可拓修改方法。以精馏塔理论板数的确定为例进行验证,结果表明,此方法对知识依赖性低、学习能力强,为案例修改技术的进一步研究提供了新思路。
英文摘要：
Case revision,as a crucial and difficult step in case-based reasoning technology,exists defects on the hard acquisition of revision knowledge and poor generality for modifying method.Aiming at these problems,in the paper,the extension theory is combined.On the basis of unified and deep case description and similarity retrieve by the basic-element models,the satisfaction evaluation is made for the similar cases.Then,for the evaluated incompatible similar cases,a case-replacement extension repair approach is proposed based on the character difference.Finally,an assessment is applied to determine the best solution from the modified cases.Therefore,a complete case extension revision strategy is formed.The determination of the number for the theoretical plate in the distillation columns is taken as an example for the verification of the proposed strategy.The application result indicates that the strategy has a lower dependence on knowledge and stronger learning ability,which provides a new idea for the further study on the case revision technology.
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