Abstract:

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.

Key words: sweater, case-based reasoning, similarity calculation, mass customization, variant design