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Abstract #1531

Alternating Direction Method of Multipliers for Diffusion Basis Functions (DBF)

Odin Eufracio1, Mariano Rivera1, and Johan Van Horebeek1

1Centro de Investigacion en Matematicas AC, Guanajuato, Mexico

We propose a new framework to solve the Diffusion Basis Functions model based on the alternating direction method of multipliers. We present an iterative, simple and efficient algorithm with closed-form updates. The proposal introduces a new regularization term to promote sparsity in the number of estimated fibers. Our experimental result shows that diffusion dictionary approaches benefit from our proposal.

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