This is really a hard question.

I found these links in stackoverlow that answers this question.

 1. [link 1][1]
 2. [link 2][2]
 3. [link 3][3]

There no exact answer because the real answer is found with developers of the site. They did not really answer the question because they are so busy. But some friends were trying to answer but analysing the whole process. And I think they are true about what they analised.

  [1]: https://meta.stackexchange.com/questions/132688/how-are-profile-views-counted
  [2]: https://meta.stackexchange.com/questions/87092/dissecting-the-stack-overflow-views-counter
  [3]: https://meta.stackexchange.com/questions/138475/idea-behind-profile-view-count