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Apr 29, 2016 at 8:24 comment added Dirk Why using coordinate descent when you have the full gradient with similar cost? Try Nesterov's accelerated gradient and also check out projected Newton methods. If you want to use available toolboxes, search for "bound constrained convex quadratic" or "box" instead of "bound".
Apr 29, 2016 at 8:05 review First posts
Apr 29, 2016 at 8:27
Apr 29, 2016 at 7:59 history asked kingnothing CC BY-SA 3.0