Public security risk assessment method based on knowledge graph

The invention relates to a public security risk assessment method based on a knowledge graph. The method comprises the following steps: acquiring original data related to public security, and cleaning and extracting the original data; performing entity extraction by using a BERT-CRF language model embedded based on Chinese fonts and pinyin; performing relation extraction and attribute extraction to obtain an RDF triple; the triple is stored in a graph database, and construction of the public safety knowledge graph is achieved; and calling in the knowledge graph by using a query language according to a specific request, and identifying a potential risk. The beneficial effects of the invention are that the system breaks the data barrier, achieves the integrated analysis of the public safety data, and builds a comprehensive public safety information network. The relationship between entities can be captured by a more perfect method, and potential public security risks can be effectively predicted. The knowledge