[Retracted] Preserving the Privacy of Healthcare Data over Social Networks Using Machine Learning

Table 3

Classification of detection algorithms.

	Algorithm	Thought	Algorithm key issues
Supervised algorithm	Single classification algorithm	Classification	Select the key feature with the greatest degree of discrimination
	Integrated classification algorithm
Unsupervised algorithm	Decomposition mining from top to bottom	Clustering	Choose a reasonable similarity index
	Cluster mining from bottom to top
Graph algorithm	Spectral decomposition	Graph outlier detection	Processing large-scale sparse graph data
	Random walk