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Figure 3
Contour plot of a cost function and trajectories of iterative updates. (a) An example using the gradient descent method. Examples using the iterative subgradient projection (b) without step size clipping and (c) with it. The points are colored according to the number of updates, and the arrows indicate the transition of each update. The global minimum is shown with a red star.

Journal logoJOURNAL OF
APPLIED
CRYSTALLOGRAPHY
ISSN: 1600-5767
Volume 57| Part 4| August 2024|
https://doi.org/10.1107/S1600576724004709
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