Research on network big data

With the rapid development of Internet, Internet of things and cloud computing, cyberspace appears a huge number and variety, strong real-time performance, huge value but low density of big data. Network big data implies a huge social, economic,scientific research value, which makes it become the focus of scientific research.This paper briefly introduces the concept and characteristics of network big data, analyzes the challenges faced by network big data, summarizes the major data mining technology and practical application, and finally, the paper points out the application of network data.