Some quesitions about RBF kernel and ranksvm

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HC Song
HC Song le 1 Juin 2016
Commenté : uday madappa le 10 Jan 2018
Hi guys, I have some questions about ranksvm and RBF kernel. Thanks for all your help.
1. The RBF kernel function is :
2. how can we calculate this function
3.The function in question 2 is used in this function. I donot know how to calculate the question 2.
This is a kernel based ranksvm. I understand the algorithm, but I donot understand how to transfer the x_i into phi(x_i).

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HC Song
HC Song le 1 Juin 2016
I find out the solutions . In Algorithms for ranking with SVMs, the section 6.3 disscussed this issue and one solution was provided. I code the algorithms and test it. the result is correct.
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uday madappa
uday madappa le 10 Jan 2018
Can you please share the code. Thanks in advance.

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