Xuan Thanh Vo, Hoai An Le Thi, Thi Bich Thuy Nguyen and Tao Pham Dinh: DC programming and DCA for Dictionary Learning.

Abstract: Sparse representations of signals based on learned dictionaries have drawn considerable interest in recent years. However, the design of dictionaries adapting well to a set of training signals is still a challenging problem. For this task, we propose a novel algorithm based on DC (Difference of convex functions) programming and DCA (DC Algorithm). The efficiency of proposed algorithm will be demonstrated in image denoising application.


Keywords: Optimization Global, Machine Learning, Applications Computer Science.


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