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. Author manuscript; available in PMC: 2012 Mar 1.
Published in final edited form as: IEEE Trans Med Imaging. 2010 Nov 18;30(3):694–706. doi: 10.1109/TMI.2010.2093536

Fig. 2.

Fig. 2

Experiment with synthetic data: Plot of ξ(j) as a function time tj for NCG, MFISTA, and AL-P1 and AL-P2. Both AL algorithms converge much faster than NCG and MFISTA.