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todo
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todo
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be care for the mask of the wavelate, as the PsiM and PsiMt are not square.
check the convergence criteria
considering less use of operators, efficiency, i.e. SpaRSA
check the wavelet, it is very suspicious
Noticed that:
1. continuation.
2. the direct implementation continue decreasing the cost function, while
the fourier transform implementation stack at certain point, although the
two share the same path before the point.
The RSE can reach unblievable precision. 4e-5; for less than 1000 iterations
The line search for FISTA speed up the convergence in terms of number of outer
iterations.
FISTA_NNL1 and FISTA_ADMM_NNL1 are almost equivalent, which means with/without
line search, their convergence curve are the same.
Restarting in FISTA is not better.
Construct an example for a steel tube with carburn film inside.
reduce unnecessary output
make better structur for class Method and its subclasses