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The paper studies on case-based reasoning of uncertain product attributes in configuration design of a product family.Interval numbers characterize uncertain product attributes.By interpolating a number of certain values randomly to replace interval numbers and making projection pursuit analysis on source cases and target cases of expanded numbers,we can get a projection value in the optimal projection direction.Based on projection value,we can construct a case retrieval model of projection pursuit that can handle coexisting certain and uncertain product attributes.The application examples of chainsaw configuration design show that case retrieval is highly sensitive to reliable results.
The paper studies on case-based reasoning of uncertain product attributes in configuration design of a product family. Interval numbers characterize uncertain product attributes. B y interpolating a number of certain values randomly to replace interval numbers and making projection pursuit analysis on source cases and target cases of expanded numbers, we can get a projection value in the optimal projection direction.Based on projection value, we can construct a case retrieval model of projection pursuit that can handle coexisting certain and uncertain product attributes. The application examples of chainsaw configuration design show that case retrieval is highly sensitive to reliable results.