1. Adaptive Control Processes: A Guided Tour;Bellan,1961
2. Blake, C., Merz, C., 1998. UCI repository of machine learning databases. Department of Information and Computer Science, University of California, Irvine, CA
3. Maximum likelihood from incomplete data via the EM algorithm;Dempster;J. Roy. Statist. Soc. Ser. B,1977
4. Pattern Classification and Scene Analysis;Duda,1974
5. Modeling the manifolds of images of handwritten digits;Hinton;IEEE Trans. Neural Networks,1997