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Showing posts from December, 2010

Facebook's Social Network Graph

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Facebook's Social Network Graph : " Paul Butler, an intern on Facebook’s data infrastructure engineering team, was interested in visualizing the "locality of friendship". Luckily, he has some great data to work with: Facebook's social network of the friendships between its 500 million members. But visualizing that much data can be a challenge in its own right -- it takes skill to draw meaning from what could easily be an incomprehensible mess of data. After drawing a sample of 10 million friend pairs from the Hive interface to Facebook's Hadoop-based database, Paul set to using R to solve this visualization problem. As Paul describes in a post on his Facebook page , initial attempts to visualize the data resulted in a "big white blob" roughly resembling the outline of the continents. But when Paul switched from plotting every friend pair to instead plotting every city pair with a great-circle line whose transparency was determined by the number

In these times of moral crisis

Some poet has said:- "राजनीति की मंडी बड़ी नशीली है, यहाँ दीवानों ने मदिरा पी ली है| कमरबंद हैं पुख्ता सिर्फ दलालों के, आम आदमी की तो धोती ढीली है|" And whatever we are seeing, listening to these days about the morality of our overall democratic and ecomomic infrastructure, these above lines seem totally fit. Now, we can proudly say that corruption is in our blood and we breathe it and practice it with our full efficiency. In this very confusing environment, it is very hard to say who is speaking truth and stands like "Angad" on moral surface. It appears that morality of each & every individual in this country, whether he/she belongs to corporates, politicians, judiciary, army, b ureaucrats or a simple common man, is at stakes. There have been many instances of loose morality in recent times in every walk of life. It is now becoming clearer day-by-day that there is and has been a dirty and unholy nexus between some parts of politicians, b ureaucrats and cor