Research on Risk Assessment of Group Polarization of Online Public Opinion in Emergencies
[Purpose/Significance]In the evolution process of online public opinion in emergencies,users gradually form different groups.With the strengthening of the common position within the group,group polarization will finally take shape.Due to its serious social,cultural,economic,and political impacts,it is particularly import-ant to assess and respond to polarization risks.[Method/Process]This paper systematically reviewed the concepts and theories related to online public opinion,group polarization,agenda setting.It proposed the risk assessment model of group polarization following the transformation path of"data-knowledge-service".Firstly,it constructed a multidimensional thematic map of events to form a collection of public opinion knowledge resources.Secondly,it determined the dimensions of group polarization risk factors and quantified the end level indicators.Finally,it adopted the entropy weight method for risk assessment and proposed response strategies.[Result/Conclusion]The results show that public opinion influence has the greatest impact on the risk of group polarization,followed by the degree of public agenda pluralism.Among all risk elements,the degree of public sentiment polarization has the least entropic weight.
emergenciesonline public opiniongroup polarizationrisk assessment
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