0
$\begingroup$

I'm reading 3.5.2 of PRML book and am confused about the result of taking derivative of marginal likelihood function with regard to alpha. In particular regarding this function:

enter image description here

And according to the book the derivative with regard to alpha is:

enter image description here

So it seems m_N is not a function of alpha at all. But clearly it is a function of alpha according to this formula:

enter image description here

enter image description here

I must have missed something very obvious.

Thanks!

$\endgroup$

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.