基于慢过程特征迁移的动态模型学习

DYNAMIC MODEL LEARNING BASED ON SLOW PROCESS FEATURE TRANSFER

  • 摘要: 为实现动态特征提取的跨域学习,提出一种基于慢过程特征迁移的动态模型学习方法。提出一种迁移慢特征分析方法,用于传递从不同源过程学习到的动态特征,从而提高目标过程的预测性能;进一步动态更新两个权重函数,以量化每个时刻从源域到目标域的可迁移性,另外设计一种改进贝叶斯算法方案,从而在考虑相应不确定性的概率分布下获取参数;通过一个仿真实例、一个公共数据集和一个工业案例,验证了该方法的有效性。

     

    Abstract: In order to realize cross domain learning of dynamic feature extraction, a dynamic model learning based on slow process feature transfer is proposed. A transfer slow feature analysis technique was proposed to transfer the dynamic model learned from the non-homologous process, so as to improve the prediction performance of the target process. Two weight functions were further dynamically updated to quantify the mobility from the source domain to the target domain at each time. In addition, an improved Bayesian algorithm scheme was designed to obtain the parameters under the probability distribution considering the corresponding uncertainty. A simulation example, a public dataset and an industrial case show the effectiveness of the proposed method.

     

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