Data Assimilation by Coupling Uncertain Support Vector Machine with Ensemble Kalman Filter
International Conference on Machine Learning and Computing(2012)
摘要
Data assimilation is widely applied to improve prediction accuracy. In common assimilation routine the prediction and assimilation are performed alternatively. However, prediction directly using the original data requires high computation costs and low accuracy. In this paper, a method of data assimilation by coupling variable precision rough set, ensemble Kalman filter and SVM is proposed. The rough set is adopted to reduce the redundant inputs. Prediction is performed by SVM with the reduced inputs. Then, ensemble Kalman filter is adopted to assimilate prediction results from SVM. The experimental results demonstrate that the proposed method reduces the training time and improves data assimilation accuracy.
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关键词
Kalman filters,data assimilation,data reduction,geophysics computing,redundancy,rough set theory,support vector machines,SVM,data assimilation accuracy improvement,data assimilation method,ensemble Kalman filter,prediction accuracy improvement,redundant input reduction,training time reduction,uncertain support vector machine,variable precision rough set,Attribute reduction,Data assimilation,Ensemble Kalman filter,Support vector machine,Variable precision rough set
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