Dictionary Learning Based on Nonnegative Matrix Factorization Using Parallel Coordinate Descent

<table>Evolution of the rate of atom recovery versus the iteration number of five algorithms. (a) It shows 3000 iterations. (b) It is a close-up view of the former 200 iterations for (a).</table>

Abstract and Applied Analysis

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Figure 1

Figure 1: Dictionary Learning Based on Nonnegative Matrix Factorization Using Parallel Coordinate Descent 