| abstract |
The invention discloses a method and system for constructing and querying a knowledge graph in the field of science and technology, and belongs to the field of science and technology management information technology. The construction and query method of the knowledge graph in the scientific and technological field of the present invention The user sorts out the data in the relational database, sorts out the objects, relationships, and attribute information to be defined, defines the objects, relationships, and attribute information through data modeling, and defines the relational database. Mapping information from data tables to objects, relationships, and attributes; extract and convert relational database data into object, relationship, and attribute instances, store them in a graph database, and perform graph query and analysis through attribute value matching. The method for constructing and querying a knowledge graph in the scientific and technological field of the invention can better meet users' needs for value exploration and intelligence discovery of big data gold mines, and has good promotion and application value. |