The radial basic core function is introduced in the establishment of the model describing the run-off hydrograph, and the SCE-UA algorithm is applied to identify the parameters of SVM.

• 在支持向量机建模过程中引入了径向基核函数，简化了非线性问题的求解过程，并应用SCE-UA算法辨识支持向量机的参数。