Construction Method of National Food Safety Standard Ontology

The food safety standard ontology is the schema layer of top-bottom building method for constructing the food safety knowledge graph, which can effectively ensure the professionalism and effectiveness of the knowledge graph. However, there are few relevant research in recent literature, which also restricts the application of knowledge graph in the food safety field. In order to solve this problem, this paper proposes the construction method of food safety standard ontology based on the national food safety standards. Firstly, we built the class framework of the food safety standards according to the seven steps of ontology construction, and then entities, attributes and relations between entities are extracted from the national food safety standards by employing the rule-based knowledge extraction algorithm. Finally, we import those entities, attributes and relations into the class framework to complete the ontology. According to the experimental results of our entity mapping, the food safety standard ontology can describe the mainly important concepts, terms, operation process and their relation in the standards. So it will effectively support the construction and integration of knowledge graph.