基于DL-BiGRU多特征融合的注塑件尺寸预测方法

钱庆杰,余军合,战洪飞,王瑞,胡健

Dimension prediction method of injection molded parts based on multi-feature fusion of DL-BiGRU

Qingjie QIAN,Junhe YU,Hongfei ZHAN,Rui WANG,Jian HU

表 6 常用尺寸预测模型和DL-BiGRU模型的预测误差对比

Tab.6 Comparison of prediction errors between commonly used dimension prediction models and DL-BiGRU models

类别 方法 size1 size2 size3 MSE/mm2 MAE/mm MSE/mm2 MAE/mm MSE/mm2 MAE/mm 浅层学习 SVR 0.001927 0.033350 0.001347 0.029793 0.001697 0.033708 LGB 0.001749 0.031274 0.002909 0.039985 0.001237 0.026022 XGB 0.001339 0.031062 0.000885 0.024066 0.000775 0.022670 深度学习 MLP 0.001115 0.024187 0.000930 0.024167 0.001033 0.024776 LSTM 0.001740 0.031460 0.001275 0.028985 0.001229 0.026163 GRU 0.001306 0.029290 0.001333 0.028509 0.000847 0.022446 融合模型 DL-BiGRU 0.000472 0.016570 0.000512 0.017776 0.000427 0.016107 IMP/% 57.70 31.50 42.10 26.10 44.90 28.90