Chunk #135 — 3 Inverse solutions — 3.1 Non parametric optimization methods — 3.1.1 The Bayesian framework — Quadratic regularization and spatial regularization (S-MAP) using dipole intensity gradients
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D^QR=(∇T∇)−1GT(G(∇T∇)−1)GT+αIN)−1M
D^QR=(∇T∇)−1GT(G(∇T∇)−1)GT+αIN)−1M