Kohonen 网络模拟大脑神经系统自组织特征映射的功能，它是一种竞争式学习网络，在学习中能无监督地进行自组织学习。-Kohonen network simulation system cerebral self-organizing feature mapping function, It is a competitive learning networks, the study can be carried out without supervision from the organizat

无监督学习，进行线性拟合梯度下降，选择thet-This first exercise will give you practice with linear regression. These exercises have been extensively tested with Matlab, but they should also work in Octave, which has been called a free version of Matlab. If you are usi