类间距离 meaning in Chinese
between class distance
Examples
- Thus , the recognition performance of sparse coding is better than traditional eigenface - based methods
稀疏编码能够增加图像特征的类间距离，因此效果要优于传统的特征脸方法。 - Eigenpalms based feature extraction is designed according to the rule of in - class distance and between - class distance
基于特征手的掌纹特征提取算法是根据类内类间距离准则而设计的特征提取算法。 - It redefines the between - class scatter by adding a weight function according to the between - class distance . therefore , it can separate the classes as much as possible . at the same time , it projects the between - class scatter into the null space of the within - class scatter that contains the most discriminant information
新方法重新定义了样本类间离散度矩阵，在原始定义的基础上增加一个由类间距离决定的可变权函数，使得在选择投影方向时，能够更好地分开各个类的样本。 - The class labels of the training samples are introduced during the training of the basis function to constrain the intra - class variations of the features . the features produced by the new sparse coding have large inter - class variations and small intra - class variations , thus the recognition performance of the reinforcement learning based sparse coding is better than that of traditional sparse coding
在基函数的训练过程中，通过引入训练样本的类别信息来限制特征类内距离的增加，用这类方法获得的特征既有较大的类间距离，又有较小的类内距离，识别性能得到了较大的提高。