基于Lasso回归和BP神经网络的蔬菜短期价格预测组合模型研究

喻沩舸, 吴华瑞, 彭程

Short-Term Price Forecast of Vegetables Based on Combination Model of Lasso Regression Method and BP Neural Network

Weige YU, Huarui WU, Cheng PENG

表2 L-BPNN组合模型预测结果

Table 2 Prediction results of L-BPNN combined model

月份 真实值/CNY 预测值/CNY 绝对误差/CNY 相对误差/% 6 2.129618364 2.127834559 -0.001783805 0.08 7 2.343750000 2.351965774 0.008215774 0.35 8 2.978162865 2.929674385 -0.048488480 1.62 9 3.314072948 3.324556398 0.010483450 0.31 10 3.173002850 3.195643321 0.022640471 0.71 11 3.097538197 3.092345332 -0.005192865 0.17 12 3.987193719 3.931245568 -0.055948151 1.40