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摘要： 针对支持向量机中两类不平衡数据的分离超平面的偏移问题提出一种校正方法：先对两类样本数据在核空间中进行核主成分分析，分别求出两类样本数据的在特征空间中的主要特征值；然后根据两样本容量以及各自的特征值所提供的信息，对两类数据给出惩罚因子比例；最后通过优化训练产生一个新的分离超平面。该分类面校正了标准支持向量机的分类误差，与标准的支持向量机相比，该方法不仅平衡了错分率，同时还能减少错分率。实验结果验证了方法的有效性。
中图分类号:
