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Table 3 Joint constrained sparse haplotype frequency estimation algorithm

From: Maximum-parsimony haplotype frequencies inference based on a joint constrained sparse representation of pooled DNA

1 Set k = 0
2 Set ρ > 0
3 Set X0 = 0, Z0 = 0, U 1 0 = 0 , U 2 0 = 0
4 U4 = (IHT(I+H HT)−1H)
5 Repeat
6   k = k + 1
7    u 3 T = 1 T U 4 H H U 2 k A + U 1 k Z k 1 T 1 T U 4 1
8    X k + 1 = U 4 U 1 k Z k + H T ( U 2 k A ) 1 u 3 T
9    Z k + 1 =max Shrink X k + 1 + 1 ρ U 1 k , 1 ρ , 0
10    U 1 k + 1 = U 1 k + X k + 1 Z k + 1
11    U 2 k + 1 = U 2 k +H X k + 1 A
12 until convergence