YANG Yawei, SONG Bing, SHI Hongbo. Multimode processes monitoring method via multiple SVDD model[J]. CIESC Journal, 2015, (11): 4526-4533.DOI: 10.11949/j.issn.0438-1157.20150479.
提出了一种名为MSVDD(multiple support vector data description
MSVDD)的多模态过程监控方法。首先
考虑到不同模态之间存在差异
利用差分策略以及局部离群概率算法对多模态数据进行聚类。其次
在每个单一模态下分别建立SVDD模型。然后
通过计算测试样本对每个单一模态的离群概率选择合适的模型进行过程监控。最后
在Tennessee Eastman(TE)平台上进行仿真测试以验证提出方法的可行性与有效性。
Abstract
Modern industrial processes always have multiple operation modes. Besides
the variable in the single mode often obey complex data distribution which is a mix of Gaussian distribution and non-Gaussian distribution. Considering the problems of both multimode and complex data distribution
a new multimode processes monitoring method called multiple SVDD is proposed based on the local outlier probability algorithm and the support vector data description algorithm. First
given that the differences exist between different modes
the clustering is conducted by employing the differential strategy and the local outlier probability algorithm. Second
the SVDD algorithm is used to build the monitoring model in each single mode. And then
the most suitable model is selected for each testing sample through calculating the outlier probability. Finally
the feasibility and efficiency are proved through the Tennessee Eastman process simulation.