1. Deep big simple neural nets for handwritten digit recognition;Ciresan;Neural Comput.,2010
2. ImageNet classification with deep convolutional neural networks;Krizhevsky,2012
3. Dropout: a simple way to prevent neural networks from overfitting;Srivastava;J. Mach. Learn. Res.,2014
4. ImageNet: a large-scale hierarchical image database;Deng,2009
5. Gradient flow in recurrent nets: the difficulty of learning long-term dependencies;Hochreiter,2001