中文说明：基于 SOM 神经网络的分类包含 PPT 的基金业绩评价SOM 神经网络、 特征提取和模式可以分为，更尤其是特征尺寸的情况下
English Description：
SOM neural network based classification of fund performance evaluation, containing PPTSOM neural network, feature extraction and pattern can be classified, more especially characteristic dimension of the case