connecting world through Facebook

Data can be more interested if we visualize like a picture than in the words by using lens from different angles to present the data. If the data is the social graph of apporximatly of 500 million people then we need to use more number of lenses to veiw it, and the one same like that is the locality of friendship which are living in different geographical and political borders.” I wanted a visualization that would show which cities had a lot of friendships between then” ( Paul Butler 2010) .

He started by taking few member of people  about ten million pairs of friends from Apache Hive in to data warehouse and by utilising the each user’s current city, he started merging that data with it and comined the friends, and then merging that data with the longitude and latitude of each of those cities.

He started diagnosed as a R , which is a open-source statistics environment.After he marked some of the points on coordinates of latitude and longitude, it looks like a world and then he plotted the lines in between the points which appears  as the outline of the continents because of the less data.

To know the clear picture of that ,he used to weights for each pair of cities as a function of a metric space that is linear and finite-dimensional between them and the number of friends between them and mared the lines in the between weights ,to make the cities having huge number of friends between them were plotted on the top of the others and used black to blue to white colors depending on its weight.

By doing all the work on it , the picture become a wonderful and detailed map of the world with few parts of the continents in visible and international borders as well, which is filled with friends, family members or college friends living apart from one other and having different people making friendship from different areas and showing human realtionship. However, huge group of the world are missing because of the less usage of facebook such as China and central Africa.

Reference: Paul Butler (2010).  Visualizing Friendships [online]. [Accessed 13/12/10]. Available from: http://www.facebook.com/notes/facebook-engineering/visualizing-friendships/469716398919