基于实例推理的毛衫快速变型设计方法

针对毛衫大规模定制中设计任务重、用户需求多样化等问题，提出基于实例推理的毛衫快速变型设计方法。分析毛衫定制的变型规律，归纳出实例的不变参数和可变参数，进一步确定实例的特征属性；设计局部相似度模型，给出了计算数值与数值、数值与区间相似度的推导方法；结合主观权重和客观权重计算出融合权重，基于局部相似度和属性融合权重计算出相似实例全局相似度，从全局相似度高的相似实例中选取最优相似实例作快速变型设计，并给出了快速变型设计具体采用的方法，最终得到待解实例的解。通过实例验证表明，所提方法能够有效地找到满足客户需求的产品变型设计解决方案。

Rapid variant design method of sweater based on case-based reasoning

Aiming at design task and the diversity of customer requirements in sweater mass customization, a method of sweater rapid variant design based on case-based reasoning is proposed. Variant regularity in sweater customization is analyzed, invariant parameters and variable parameters of case are summarized, characteristics of case attributes are further determined. Local similarities model is designed, the derivation of similarity calculation between value and value, value and range is given. The subjective weight and the objective weight are combined to form synthetic weight, which with local similarities are used to calculate global similarity of similar cases. Then, an optimal similar case with the highest global similarity is selected to implement rapid variant design. In addition, concrete measures of rapid variant design are listed. The solution to unknown instance is gotten at last. An example is used to verify the proposed method, and the results shows that the method can find the product variant design solution which satisfied customer requirements effectively.