We present an exploratory study to improve the performance of a knowledge push system in product design. We focus on the domain of knowledge matching, where traditional matching algorithms need repeated calculations t...We present an exploratory study to improve the performance of a knowledge push system in product design. We focus on the domain of knowledge matching, where traditional matching algorithms need repeated calculations that result in a long response time and where accuracy needs to be improved. The goal of our approach is to meet designers’ knowledge demands with a quick response and quality service in the knowledge push system. To improve the previous work, two methods are investigated to augment the limited training set in practical operations,namely, oscillating the feature weight and revising the case feature in the case feature vectors. In addition, we propose a multi-classification radial basis function neural network that can match the knowledge from the knowledge base once and ensure the accuracy of pushing results. We apply our approach using the training set in the design of guides by computer numerical control machine tools for training and testing, and the results demonstrate the benefit of the augmented training set. Moreover, experimental results reveal that our approach outperforms other matching approaches.展开更多
基金supported by the National Natural Science Foundation of China(No.51322506)the Zhejiang Provincial Natural Science Foundation of China(No.LR14E050003)+3 种基金the National High-Tech R&D Program(863 Program)of China(No.2013AA041304)the National Key Technology Support Program(No.2013BAF02B10)the Fundamental Research Funds for the Central Universitiesthe Innovation Foundation of the State Key Laboratory of Fluid Power Transmission and Control,China
基金Project supported by the National Key R&D Project of China(No.2018YFB1700700)the National Natural Science Foundation of China(No.51675478)。
文摘We present an exploratory study to improve the performance of a knowledge push system in product design. We focus on the domain of knowledge matching, where traditional matching algorithms need repeated calculations that result in a long response time and where accuracy needs to be improved. The goal of our approach is to meet designers’ knowledge demands with a quick response and quality service in the knowledge push system. To improve the previous work, two methods are investigated to augment the limited training set in practical operations,namely, oscillating the feature weight and revising the case feature in the case feature vectors. In addition, we propose a multi-classification radial basis function neural network that can match the knowledge from the knowledge base once and ensure the accuracy of pushing results. We apply our approach using the training set in the design of guides by computer numerical control machine tools for training and testing, and the results demonstrate the benefit of the augmented training set. Moreover, experimental results reveal that our approach outperforms other matching approaches.
基金Project supported by the National Basic Research Program(973)of China(No.2011CB706506)the National Natural Science Foundation of China(No.51375438)the Zhejiang Provincial Natural Science Foundation of China(No.LQ13F030003)
