With rapid growth in usage of various social media and
smartphones, different kinds of big data in the form of text
are generated, circulated and stored, requesting to mine
such big data. Usage of many sensors acquiring the data
including RFID has been also expanded, which enables
context aware computing in more realistic ways. Further,
the development of cloud environments that can collect
various data streamlines the process of gathering and
utilizing customers’ personal data and their patterns of
purchasing. In the future, therefore, big data analysis will
become a must in firms, institutes, and the society