Constructing Aircraft Fault Knowledge Graph for Intelligent Aided Diagnosis.

In order to design an intelligent diagnosis expert system which helps grass-roots maintenance engineers to quickly and accurately locate the fault unit of aircraft, constructing aircraft fault knowledge graph as knowledge base of the expert system is proposed in this paper. Fault knowledge model based on ontology which describes what entity concepts and what relationship between these concepts exist in aircraft fault knowledge graph is introduced, and the fault entity identification and relation extraction method based on deep learning is illustrated in this paper.