International Journal of Scientific and Research Publication (IJSRP)
Big data is characterized by increasing volume and velocity of data. IBM estimates that every day 2.5 quintillion bytes of data are created - so much that 90% of the data in the world today has been created in the last two years. The traditional data-intensive sciences such as astronomy, high energy physics, meteorology, genomics, biological and environmental research in which peta- and exabyte of data are generated are common domain examples. Here even the capture and storage of the data is a challenge.