A Knowledge Graph System for the Maintenance of Coal Mine Equipment

Algorithm 1

Knowledge storage graph algorithm.

	Input: RDF graph
	Output: Neo4j Attribute graph
(1)	P Initialize empty set
(2)	Get the set of RDF file triples, parse, and store them as triplesk
(3)	Access to Neo4j database, db = Database (http://127.0.0.1:7474)
(4)	Get the corresponding nodes and of and
(5)	Determine whether and exist in the Neo4j database; if not, then create newNode ()
(6)	Get the edge corresponding to
(7)	Determine whether exists in the database; if not, then create Rel ()
(8)	Judge the traversal result: if , end; if , go to the second step
(9)	Complete the storage of the CMEM ontology content