In view of the difficult prediction of small data and the single-strength index of yarn containing mutation data in textile enterprises, a method of predicting the single strength of yarn that combines gray correlation and the nearest neighbor is proposed. In this paper, 26 indicators, such as raw cotton quality index and key process parameters, are used as input factors for the prediction model, and the yarn single strength is predicted. The experimental results show that the relative error of the new method predicts the single-force index of yarn is basically within 10.0%, while the individual data of the traditional three-layer BP neural network predicts the relative error is very large. Compared with the three-layer BP neural network, the new method also has a good prediction effect on the single-strength index of small sample yarn variety with mutation data.
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