1. Zhu, X., Goldberg, A.B.: Introduction to Semi-supervised Learning. Synthesis Lectures on Artificial Intelligence and Machine Learning. Morgan & Claypool Publishers (2009)
2. Bian, Z.Q., Zhang, X., et al.: Pattern Recognition (in Chinses). Tsinghua University Press, Beijing (2000)
3. Lloyd, S.P.: Least squares quantization in PCM. IEEE Trans. Inf. Theory 28(2), 129–137 (1982)
4. Wang, H.Z., Yu, J.S.: Study on the kernel-based methods and its model selection (in Chinese). J. Jiangnan Univ. 5(4), 500–504 (2006)
5. Smola, A.J.: Learning with Kernels. Technical University of Berlin, Berlin (1998)