介绍了支持向量机的变形算法、多类分类算法及模型选择问题；
The transformative algorithm based on SVM, multi-class SVM and model selection are also presented.
而且，针对无监督图像分割的模型选择问题提出了带惩罚项的误差平方和阶次判定准则。
Furthermore, in order to solve the model selection problems of unsupervised image segmentation, the sum of squared error criterion with penalty term is proposed.
根据分析结果，讨论了不同模型对谐波分析计算的影响，以及考虑到在不同条件和不同的要求精度下的模型选择问题。
According to the analysis result, it discusses the influence of different models for harmonic analysis, and discusses how to select the models for different condition and accuracy requirements.
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