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<p>of the  norm.</p>

<p><big> Bayesian approach </big></p>
<p>Very similar to the least-squares approach is the probabilistic approach: If we know the statistics of the noise that contaminates the data, we can think of seeking the most likely model m, which is the model that matches the <a href="page.php?w=Maximum_likelihood_estimation">maximum likelihood criterion</a>. If the noise is <a href="page.php?w=Normal_distribution">Gaussian</a>, the maximum likelihood criterion appears as a least-squares criterion, the Euclidean scalar product in data space being</p><p>
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