How are friends connected on Facebook? Facebook intern, paul buttler has created an image that shows you the facebook friend connections worldwide based on cities, the number of friend connections in them.
When you have a social graph data of 500 million people, there are many ways you can look at them.
{Click on the image to view full size}
The creator paul says:
Defined the importance of each pair of cities as a function of the Euclidean distance between them and the number of friends among them. Then I drew lines between pairs of importance, so that pairs of cities with more friends among them were drawn over others. The color scale goes from black to blue to white, each line with the color corresponding to their weight. Also transformed lines to fit in the picture, rather than lengthen them all over the map.
The image, besides being spectacular, it also gives us an idea of how friendships are spreading throughout the world, including oceans.
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