A General and Systematic Method for Constructing and Applying the Chinese Medical Knowledge Graph

Abstract

In this paper, we propose a general systematic medical knowledge graph construction technique, which combines the methods of domain knowledge graph building and general knowledge graph building. Using ICD-11 as the disease knowledge system, the bottom-up method is used to collect medical data, then the multi-source heterogeneous data are fused to build a medical knowledge graph. Because knowledge graphs that are constructed from the bottom to the top may be incomplete, the knowledge reasoning method is used to complete the knowledge graph. Given the high requirement of knowledge accuracy in the medical field, only the reasoning results considered correct by experts can be added to the knowledge graph for knowledge completion. Finally, we create an application website for the medical knowledge graph, which realizes the functions of medical knowledge Q & A and information recommendations. The approaches for medical knowledge graph construction, knowledge completion, and the Q & A system devised in this paper can be used as a general framework that can be applied to other knowledge graph construction systems.