Abstract: Due to the insufficient information,significant uncertainty characteristics and social harm in the internet public opinion emergency,the relevant emergency management departments depending on self-interest tend to make many alternative emergency plans for coping with public opinion crisis.In order to assist the top decision-maker ultimately choose the optimal emergency plan,in this paper we first extracted some important evaluation indicators which can effectively measure the effect of uncertain internet public opinion emergency plans,and assigned the reasonable weights for the selected indicators based on interval fuzzy entropy measure.Then we got the combined interval value effect of each alternative emergency decision plan by the weighted aggregation of all the assessed index value of emergency plan.Finally,by pair-wise comparisons of all the combined interval values,we could get their possible priority degree and prioritized all the alternative emergency decision plans,greatly improving the decision efficiency of internet public opinion emergency.

Key words: Internet public opinion emergency,Emergency decision,Interval fuzzy entropy,Possible priority degree