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Century was marked by the advent of the digital age. Now, our world is more connected sand data driven than ever before. Some of the questions of interest are as follows :
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How many people, on an average are mutual connections between two people on Facebook?
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Can we identify different communities in a society ?
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How well connected are my friends among themselves ?
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How influential is a person in this society ?
These and many more can be answered via network data analysis (NDA). NDA primarily stands on the foundations of graph theory and data analysis environmetns/languages.