Does it matter whether we put regularization parameter ($C$) with error or weight term in Kernel ridge regression?
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02-11-2019 - |
Question
Kernel ridge regression associate a regularization parameter $C$ with weight term ($\beta$):
$\text{Minimize}: {KRR}=C\frac{1}{2} \left \|\beta\right\|^{2} + \frac{1}{2}\sum_{i=1}^{\mathcal{N}}\left\|e_i \right \|_2^{2} \\ \text{Subject to}:\ {\beta^T\phi_i}=y_i - e_i, \text{ }i=1,2,...,\mathcal{N}$
If we associate $C$ with an error term as follows:
$\text{Minimize}: {KRR}=\frac{1}{2} \left \|\beta\right\|^{2} + C\frac{1}{2}\sum_{i=1}^{\mathcal{N}}\left\|e_i \right \|_2^{2} \\ \text{Subject to}:\ {\beta^T\phi_i}=y_i - e_i, \text{ }i=1,2,...,\mathcal{N}$
then how this second formulation is different from the first one?
or
Can we associate $C$ either with weight term or error term in Kernel ridge regression?
No correct solution