FEAT Add line search for FISTA solver #105
Description
Currently FISTA relies on "global" Lipschitz constant. For non-Lipschitz datafits (eg: Poisson), this is a problem, hence the support of line search.
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Currently FISTA relies on "global" Lipschitz constant. For non-Lipschitz datafits (eg: Poisson), this is a problem, hence the support of line search.