第二炮兵工程学院自动控制工程系,西安,710025
网络首发:2010-10-10,
纸质出版:2010
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张弦 1, 王宏力 1, 张金生 2, 等. 状态时间序列预测的贝叶斯最小二乘支持向量机方法[J]. 西安交通大学学报, 2010,44(10):42-46.
A Least Squares Support Vector Machine for Condition Time Series Prediction Based on Bayesian Evidence Framework[J]. 2010, 44(10): 42-46.
为实现对电子系统状态时间序列的有效预测
提出一种基于贝叶斯证据框架的最小二乘支持向量机在线预测方法.该方法以逐次增加最新状态数据并剔除最旧状态数据的方式更新最小二乘支持向量机预测模型
利用分块矩阵求逆运算简化了新旧状态数据交替增减所带来的预测模型重训问题
通过贝叶斯证据框架实现预测模型超参数的在线动态优化.应用于雷达发射机中高压电源与多注速调管的状态时间序列预测实例表明
该方法的预测精度与计算效率比自适应灰色模型方法分别高9.52%与73.26%
具有预测精度高、预测稳定性高与计算效率高的优点
适用于电子系统在线状态时间序列预测.
A method using Bayesian evidence framework(BEF)and least squares support vector machine(LSSVM)is proposed to predict electronic system condition time series accurately. A LSSVM model for prediction is trained with all the current condition time series data. Then
the LSSVM model is iteratively updated by adopting the latest data and pruning the oldest data. Matrix transform is applied to reduce the computational cost of retraining the LSSVM model. Finally
the updated LSSVM model is dynamically optimized by BEF. Numerical experiments on radar transmitter condition time series prediction are carried out to test the effectiveness of the proposed method. The experimental results and comparisons with the conventional adaptive grey model show that the proposed method has better performance in prediction accuracy
prediction stability and computational efficiency
and that the prediction accuracy and the computational efficiency for electronic system condition time series prediction are raised by 9.52% and 73.26% respectively.
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利用非线性流形学习的轴承早期故障特征提取方法. 西安交通大学学报,2010,44(5):45-49.
一类支持向量机的设备状态自适应报警方法. 西安交通大学学报,2009,43(11):61-65.
基于非线性流形学习的喘振监测技术研究. 西安交通大学学报,2009,43(7):44-48.
一种基于密度加权的最小二乘支持向量机稀疏化算法. 西安交通大学学报,2009,43(10):11-15.
具有模糊隶属度的模糊支持向量机算法. 西安交通大学学报,2009,43(7):40-42.
一种新的选择性支持向量机集成学习算法. 西安交通大学学报,2008,42(10):1221-1225.
加权支持向量机求解路径算法研究. 西安交通大学学报,2008,42(10):1226-1229.
一类具有未知干扰的Markov跳变系统故障检测. 西安交通大学学报,2007,41(4):458-462.
面向分类去噪问题的模糊支持向量机新算法. 西安交通大学学报,2007,41(12):1414-1418.
ε不敏感损失函数支持向量机分类性能研究. 西安交通大学学报,2007,41(11):1315-1320.
基于支持向量机的发动机故障诊断. 西安交通大学学报,2007,41(9):1124-1126.
采用支持向量机评估老年人步态对称性的研究. 西安交通大学学报,2007,41(8):995-999.
支持向量机在电力变压器故障诊断中的应用. 西安交通大学学报,2007,41(6):722-726.
基于改进的加权最小二乘支持向量机的空间桁架建模. 西安交通大学学报,2007,41(1):119-121.
基于喘振频域特性的失稳预警技术研究. 西安交通大学学报,2007,41(11):1321-1325.
一类基于模糊系统的非线性鲁棒自适应预测控制. 西安交通大学学报,2008,42(6):669-673.
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