Forecast daily indices of solar activity, F10.7, using support vector regression method
Forecast daily indices of solar activity, F10.7, using support vector regression method
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使用支持向量回归方法预测太阳活动的每日指数,F10.7
DOI:
10.1088/1674-4527/9/6/008
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发表时间:
2009-06
影响因子:
1.8
通讯作者:
中科院分区:
文献类型:
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作者:
The 10.7 cm solar radio flux (F10.7), the value of the solar radio emission flux density at a wavelength of 10.7 cm, is a useful index of solar activity as a proxy for solar extreme ultraviolet radiation. It is meaningful and important to predict F10.7 values accurately for both long-term (months-years) and short-term (days) forecasting, which are often used as inputs in space weather models. This study applies a novel neural network technique, support vector regression (SVR), to forecasting daily values of F10.7. The aim of this study is to examine the feasibility of SVR in short-term F10.7 forecasting. The approach, based on SVR, reduces the dimension of feature space in the training process by using a kernel-based learning algorithm. Thus, the complexity of the calculation becomes lower and a small amount of training data will be sufficient. The time series of F10.7 from 2002 to 2006 are employed as the data sets. The performance of the approach is estimated by calculating the norm mean square error and mean absolute percentage error. It is shown that our approach can perform well by using fewer training data points than the traditional neural network.
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影响因子:
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作者:
V. Gavrishchaka;S. B. Ganguli
通讯作者:
V. Gavrishchaka;S. B. Ganguli
DOI:
10.1017/cbo9780511801389.013
发表时间:
2000-03
期刊:
--
影响因子:
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作者:
N. Cristianini;J. Shawe-Taylor
通讯作者:
N. Cristianini;J. Shawe-Taylor
影响因子:
2.6
作者:
Li, Rong;Cui, Yanmei;Wang, Huaning
通讯作者:
Wang, Huaning
影响因子:
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作者:
Cherkassky, V
通讯作者:
Cherkassky, V
DOI:
10.1017/cbo9780511801389.005
发表时间:
2000-03
期刊:
--
影响因子:
--
作者:
N. Cristianini;J. Shawe-Taylor
通讯作者:
N. Cristianini;J. Shawe-Taylor