KGRefiner: Knowledge Graph Refinement for Improving Accuracy of Translational Link Prediction Methods

Link prediction is the task of predicting missing relations between entities of the knowledge graph by inferring from the facts contained in it. Recent work in link prediction has attempted to provide a model for increasing link prediction accuracy by using more layers in neural network architecture or methods that add to the computational complexity of models. This paper we proposed a method for refining the knowledge graph, which makes the knowledge graph more informative, and link prediction operations can be performed more accurately using relatively fast translational models. Translational link prediction models, such as TransE, TransH, TransD, etc., have much less complexity than deep learning approaches. This method uses the hierarchy of relationships and also the hierarchy of entities in the knowledge graph to add the entity information as a new entity to the graph and connect it to the nodes which contain this information in their hierarchy. Our experiments show that our method can significantly increase the performance of translational link prediction methods in H@10, MR, MRR.


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