2015 | OriginalPaper | Buchkapitel
DC Programming and DCA for Dictionary Learning
verfasst von : Xuan Thanh Vo, Hoai An Le Thi, Tao Pham Dinh, Thi Bich Thuy Nguyen
Erschienen in: Computational Collective Intelligence
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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.