It is only over past several decades that various nonlinear time series models have been proposed, in which radial basis function networks have become one of the most popular methods.
我的看法：
改为：in which the methods based on radial basis function networks have become quite popular.
radial basis function networks 是一种原理或是系统，不能够被称作方法。只能说基于这种网络的方法。
in which radial basis function networks have become one of the most popular methods.
关键是语法不统一问题：前面是复数“networks”，并也用了“have”。而最后却是“one of the most popular methods"，为单数了。作为一种方法，应为单数。故改为：in which radial basis function network has become one of the most popular methods.
回复此楼
+1/176
