The public opinion analysis scheme and method research on multi-platform

In view of the shortage of public opinion research about hot event on cross-platform, we put forward a research scheme about public opinion on multi-platform and defined and calculated the public opinion index of broadcast and television, Weibo, forum, news portal and so on. The changing rules of public opinion tendency, focus and communication structure is shown clearly through visualization. We showed the public opinion communication rule and effect intuitively and dynamically in different stage on different platforms.