Research on Security Public Opinion Based on Declining Value of Big Data

The development of big data makes social security more and more complicated. The popularization of big data, the immediacy of communication and the progress of technology make the social security situation facing new challenges. Maintaining social security should adapt to the development of the information era and take the initiative to use big data to build an efficient social security system is imperative. However, the main currently researches of big data just focusing on the technologies and methods, which lack of a study of its own cognition. In this paper, we study the value definition of big data and the law of diminishing value presented in the process of public opinion dissemination, which provide reference for social media monitoring under the background of big data.