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SVM (margin intuition, kernel trick)
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665.
RBF Kernel Gamma Parameter
medium
An RBF (Radial Basis Function) kernel is used in an SVM. What does the gamma parameter control?
A
The width of the Gaussian kernel — high gamma means each training point influences a small neighborhood
B
The degree of the polynomial approximation used to compute the RBF kernel efficiently
C
The regularization strength applied to support vectors at the decision boundary during optimization of the margin
D
The number of support vectors retained by the model after the optimization problem is solved
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