Thread: RBF - distance and weights View Single Post
#2
09-06-2012, 12:41 PM
 yaser Caltech Join Date: Aug 2009 Location: Pasadena, California, USA Posts: 1,477
Re: RBF - distance and weights

Quote:
 Originally Posted by rainbow Hi, I have some questions about lecture 16 slides 3 and 6. 1. In slide 3, the distance is squared when included in the basis function of the hypothesis. This would bring down the significance of far away points even more, but what is the rationale behind the square? 2. In slide 6, you get the impression that each is distributed. Is this correctly understood given each weight is solved for exactly? Or should it be that each is distributed?
1. The rationale behind the square is often the favorable analytic behavior and the relation to Gaussian.

2. If by distributed you mean is affected and affects different points, then yes. In slide 6, there is one , but it can be different 's a s well.
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