基于粗糙集的协同设计冲突消解事例推理技术

针对协同设计中的冲突消解事例推理问题，提出了一种基于粗糙集的事例推理策略。在该策略中，运用粗糙集中属性重要度的理论和方法，确定事例各特征属性的权重，运用知识约简的理论和方法判断事例知识库的索引。给出了计算权重和索引的算法，以及事例相似性的度量方法。通过索引，检索出与目标事例相关的源事例，并计算它们之间的相似度，从中选取与目标事例相似度值最大的源事例作为参考。最后，给出了一个实例的应用分析，以说明该策略的有效性。

Rough set-based conflict resolution case reasoning in collaborative design

To solve the problem of conflict resolution case reasoning in collaborative design, a rough set-based case reasoning strategy was presented. In this strategy, the theory and methods of attribute importance within rough set were applied to define the weight of each feature attribute of the case; the theory and methods of knowledge reduction was applied to define the index of the case knowledge base. The algorithm for calculating weight and index, and the measurement method for case similarity were provided. Original cases which were correlative with the target case could be retrieved according to the index, and those which had the maximum similarity degree were chosen to be taken as the reference for the conflict solution of the target case. Finally, the availability of this strategy was demonstrated by analyzing an application illustration.