Table 1.

An overview of current studies in the drug repurposing field

Reference	Method	Details
[3]	FB	Non-linear method
[4]	FB	Fusion method to combine three similarity measurements
[5]	FB	Recommendation system based on functional characteristics
[9]	HNB	Non-negative matrix factorization
[10]	HNB	Multi-modal neural network
[11]	HNB	Random walk with restart on a hierarchical network
[12]	HNB	Weighted bilinear neural network
[13]	HNB	Deep learning
[14]	HNB	Geometric deep learning
[15]	HNB	Fusing higher and lower-order biological information
[17]	KG	Creating a knowledge graph from biomedical literature
[19]	KG	Literature-based KG utilizing weighted relationships
[20]	KG	Drug-centric knowledge graph
[21]	KG	A coupled-tensor factorization-based embedding model
[23]	KG	CAS biomedical knowledge graph and drug ranking method
[18]	KG	Knowledge graph completion using TransE
[22]	KG	Logistic regression method