Alarm condition automatic issuing method fusing geographical position and text similarity

The invention discloses an alarm condition automatic issuing method fusing geographical position and text similarity, and belongs to the technical field of intelligent police affairs and public security. According to the method, an address word vector obtained by FastText and longitude and latitude information obtained according to an address resolution service are fused, and an address multivariate element composed of the address word vector and the longitude and latitude information serves as input of a weighted KNN model to train a classifier. And meanwhile, the weighted KNN adopts a sigmoid function to adaptively balance the weight of the similarity between the address position coordinates and the word vectors under different longitude and latitude analysis precisions, so that the robustness of the model is improved. On the basis of historical alarm condition issuing data of a certain city, the result shows that the alarm condition issuing accuracy is 91% or above, and the effectiveness and high efficienc