Nonlinear dictionary learning based deep neural networks

In this paper, we demonstrate nonlinear features extracted by deep neural network have better results in the task of dictionary learning. A nonlinear dictionary learning model is constructed and the optimization algorithm is developed. In the learning algorithm, we use the deep neural network to convey raw samples to feature space and learn a nonlinear dictionary. The extensive experimental results of classification on some benchmark dataset show the proposed nonlinear dictionary significantly improves the classification performance.