Situation awareness method based on ontology and evidence theory

The fusion and reasoning of multi-source heterogeneous information is important and difficult in the research of situational awareness. In this paper, the advantages of ontology in certainty reasoning and the advantages of evidence theory in uncertainty reasoning are combined, situation model and reasoning decision algorithm based on ontology and evidence theory is proposed. The model effectively integrates the theory of evidence and ontology, and results that the situational awareness model has strong adaptability. Experimental results show that the proposed method can be easily used in the situation ontology modeling of multi-source heterogeneous information, and effectively improve the accuracy of the inference results.