Urban public events refer to nature、Human or economy and other reasons，Suddenly or exposed，involved a wide range，Learning of people、Work、Life、Psychological order and social security have a serious impact，events that are likely to cause public crisis。In recent years，With the rise of social media quickly，The information dissemination mechanism in the public events has also changed。The change of the media has accelerated the speed of information communication，At the same time, it may also cause secondary network public opinion risk。

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The characteristics of social network public opinion in public events are first manifested as the main body of information dissemination。In the early stages of the outbreak of public events，The information about the incident is not sufficient，Social media platforms are mixed with official information and information posted by the public，The information published by the media platform has also become an important factor affecting the Internet of public opinion。From the information involved in information，This information includes the personal description of the person in the public event，It also includes the public's view of the information published by the government and mainstream media，It also includes some propositions that express personal requirements。From the bet365 best casino games perspective of information quality，This information is both authentic information，There are also rumors，There is also a false information that deliberately fabricated for some purpose。This multiple subject、Diversity information dissemination mode will be placed in the noise information environment，Interference its rational judgment。The rapid transmission of social media has broken the agenda settings of the public media in the traditional public opinion field，I have put forward new challenges to the public opinion guidance ability of mainstream media。

Social network public opinion in public events also presents biased features。Provide comprehensive and balanced information with the public media，Some self -media to attract traffic，It has a strong bias in the information provision。Another，Different from traditional media based on transmission of factual information，Social media is more likely to become a platform for people to express viewpoint information。Therefore，By providing bias and viewpoint information，Social media is more likely to create a public opinion environment that has some opinions.。

The characteristics of social network public opinion in public events are also manifested in，Public opinions around the same incident may differentiate opposition。In the massive information of social networks，People are more willing to receive information that is similar to its original concept。Since people are always in contact and continue to strengthen similar opinions，social networks formed a "echo wall effect" that enhanced information。Big Data Age，Under the recommendation of smart algorithms，People don't even need to be selected，directly pushed by the bet365 live casino games platform media to the information similar to your own opinion。The characteristics of these social networks have caused discussions on public events on social networks.，It is difficult to communicate between different views of holders，This has caused instability of public opinion，It may even appear extreme emotions。

　　Social network public opinion governance mechanism

Urban public events are not only related to the vital interests of the people，It is also a test of the government's emergency management system and ability。Social network public opinion characteristics for social events for emergencies，To further strengthen and improve public opinion guidance，Establish a social network public opinion governance mechanism that is compatible with media technology development。

First，You can adopt the government -led，Social network public opinion governance system containing multiple subjects co -governed。Online public opinion governance should be by party committees at all levels、Government、self -media operator、Participate in multiple subjects such as ordinary people，"Multi -level -Multi -preference" governance system that fulfills different responsibilities。In this mode，The government is the lead，Responsible for providing guiding opinions and launching governance。Self -media operators must strengthen self -management，Assist the government to work。Ordinary people should improve information recognition ability，Participate in online public opinion governance in the form of self -discipline and volunteers。This mode is bet365 best casino games finally trying to establish the government as the core orientation，Division of labor is clear，Multi -level、Social network public opinion co -governance system involved in multiple subjects。

Mainstream media can play an important role in the construction of a diverse social network public opinion system。The development of social media has brought changes to the communication pattern，The mainstream media no longer has a unique right to spread the words，But you can use the credibility and influence formed for a long time，Occupy the communication channel with high -quality content。In a public event，Mainstream media should take responsibility，Through interview authoritative departments、Authoritative experts release scientific information in time，Stable people's emotions，Quickly respond to people's concerns and questions，Clarifying rumors，Unveiled false information。In addition to the information dissemination on the traditional mass communication medium，Mainstream media must also make full use of the social media platform for information dissemination，Improving influence in social networks，Open the official public opinion field and folk public opinion field。

Second，The government must further improve the ability to obtain information and respond to information，Especially at the beginning of the outbreak of public events and the key nodes of the event development, do a good job of information response。When the public events just occurred，Various information mixed in social networks，At this time, the government should Bet365 lotto review respond to public concern in time，Improve government credibility，firmly grasped information release and public opinion guidance for active rights。Traditional Media Age，One -way communication mode is not conducive to the government timely、Effectively learn about the opinions of the public，But social media changed this situation。The government can use social media platforms to understand public opinion in time，and effective response to it。During the epidemic period of new crown pneumonia，The State Council uses WeChat platform to carry out clues for clues for immune -related prevention and control problems，and conduct inspections on related issues and suggestions，It is a useful attempt for the government to use social media platforms to carry out information collection and response work。The collaborative interaction between the government and the public，You can express the public in social media at will，Opinions of transformation into institutional expression，to eliminate uncertainty that non -institutional participation may bring，Promote legal、Order、Reasonable political participation order。

Last，Public opinion differentiation for public events for emergencies，The government must make full use of social network media，Coordinated dialogue communication between multiple subjects，Promote multiple parties to reach social consensus。Social consensus generally refers to the general or close view of social affairs on social affairs，It is emphasized that social members are common to social affairs、Consistent bet365 best casino games value pursuit。Social consensus is a prerequisite for the understanding of the online public opinion governance system that realizes the multi -subject.，The key to maintaining the overall stability of public opinion in public events。To give full play to the dialogue of social networks in public affairs，Enhance understanding and achieve the role of consensus，Improve the trust between the subject of diversified governance，Gathering social forces，Create rationality、Fair、People -oriented information communication environment。One aspect，The government can use social networks，Provide interactive channels for political participation，Listen to the reasonable interests of all parties，On the other hand, online operators can build social network platforms，Provide links to different perspectives，Enhance public information distribution，Set up dialogue communication space for different groups，Help different groups to improve understanding，Finally established a negotiation mechanism that helps multiple subjects and solves complex social problems。

　　(This article is the key project of the National Social Science Fund "Research on Public Opinion Governance of Public Incidents based on big data" (18AXW010)、Pharmaceuticals of Youth Innovation Talent Projects of Ordinary University in Guangdong Province (2018wqncx028)

(Author Unit: School of Journalism and Communication of Guangdong University of Foreign Trade)