利用贝叶斯置信框架推断最小二乘支持向量机模型参数并建立贝叶斯最小二乘支持向量机非线性预测模型。在推断第1层确定模型最优参数,第2层确定正则化参数,第3层确定核参数。将该模型用于某1800热连轧轧制力的预测,在预测精度和速度上都取得了较好的效果。
Bayesian evidence framework was applied to least square support vector machines in order to optimize parameters and establish nonlinear prediction model. On the first level of inference, optimized model parameters were selected and on the second the regularization parameters were determined. The kernel parameters were tuned on the third level framework. The model was applied to the prediction of rolling load of 1800 hot strip mill and the simulation result indicated both the prediction accuracy and speed were better.
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