What statistical technique would be appropriate for optimising the weights?

Background:

For example I have the following data

headings = { 
         :heading1 => { :weight => 25, :views => 0, :conversions => 0}
         :heading2 => { :weight => 25, :views => 0, :conversions => 0}
         :heading3 => { :weight => 25, :views => 0, :conversions => 0}
         :heading开发者_如何转开发4 => { :weight => 25, :views => 0, :conversions => 0}
       }
total_views = 0

I got to serve these headings based on their weightages. Every time a heading is served its views is incremented by one and total_views also incremented. And whenever a user clicks on a served heading its conversions is incremented by one. I've written a program (in Ruby) which is performing this well.

Question:

I need to Auto Optimize best converting heading. Consider the following views and conversions for all headings:

heading1: views => 50, conversions => 30
heading2: views => 50, conversions => 10
heading3: views => 50, conversions => 15
heading4: views => 50, conversions => 5

I need to automatically increase the weightage of heading(s) which is/are converting more and vice versa. The sum of weightage will always be 100.

Is there any standard algorithm/formula/technique to do this? There might be some other parameters that need to predefined before making these calculations. But I am not getting it through.

Pleas advise.

Thanks,

Imran

Well, a simple percentage calculation would do that.

30+10+15+5=60

30/60*100=50

10/60*100=17 (rounded)

15/60*100=25

5/60*100=8 (rounded)

So you get weightings of 50,17,25 and 8. You may or may not nead to watch out for rounding errors.