Knowledge graph is a new knowledge representation method in the mobile Axle Covers Internet era.Knowledge graph refinement is one of the main contents in application of knowledge graph and its main goal are completion and error detection.At the same time, knowledge graph refinement is usually applied in areas of the information retrieval, robot, intelligent answer and so on.At result, studies on knowledge graph refinement had great significance.
This paper addresses the methods of knowledge graph Changing Mat refinement and finally presents challenges of know-ledge graph.