A Method of Constructing Emergency Response Process from News Report
In order to let the public know more about the emergency response process and improve the credibility of the government,this paper proposes and realizes a method of constructing the emergency response process from news report.The emergency measures were regarded as triples,the training corpus was constructed,the conditional random field(CRF)model was used to extract the elements of triples,and then the emergency measures were sorted in time order to get the emergency response process.The accuracy of CRF model was 99.6％,the accuracy was 93.8％,the recall was 76.2％,and the F1 value was 84.1％.At the same time,by comparing the extraction result of this paper and the manual extraction result,we can see that the extraction method of this paper achieves the practical level.This method can accurately generate emergency response process,and provide technical support for scientific decision-making in emergency response.
emergencyemergency response processconditional random field
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