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Maximum Margin Formulation of Support Vector Machines in Machine Learning

This concept develops the maximum-margin formulation of the Support Vector Machine, motivated by the fact that the perceptron algorithm on linearly separable data converges to *some* separating hyperplane determined by initialization rather than to a uniquely optimal one. The maximum-margin criterion selects a canonical solution by choosing the hyperplane that maximizes the distance to the nearest training point of either class, with the margin defined symmetrically so both classes are equidistant from the decision boundary. Because the scale of the weight vector and bias is arbitrary, the formulation imposes a canonical normalization that turns margin maximization into a constrained optimization over correctly classified points satisfying y(w·x + b) ≥ 1; this places SVMs within supervised linear classification in machine learning as the principled successor to the perceptron.