The Review of Big Data

Big Data is becoming the attentive focus in the current world. With the rapid integration and de velopment of the next generation of information technology, such as Cloud computing, mobile Internet and Internet of Things, data present an exponential growth. This paper illustrates the concept of big data, and present national and international research and application status, particularly analyzes the advantages a nd disadvantages of the key techniques of big data processing, and summarizes the current challenges that big data is facing. Finally, it views the prospects of the future based on the above research and summ aries. In recent years, big data is rapidly developed into a worldwide hot spot in varied fields of academy, industry, and government agencies. Nature (1) and Science (2) respectively published special issues to discuss the development and research of big data in 2008 and 2011.With the rapid integration and de velopment of the next generation information technology, such as Cloud computing, mobile Internet and Internet of Things, massive interactive and sensor data are successively generated from various industries. Data volume has jumped from TB to PB, EB, and even ZB level. Out of all data obtained by the entire human civilization, 90% have been generated in the past two years (3). By 2020, the scale of data volume generated worldwide will have soared 44 times to 35 ZB (4).