Individual Attribute and Cascade Influence Capability-Based Privacy Protection Method in Social Networks

Table 1

Symbols and definitions commonly encountered.

Symbols	Definitions
	Graph for describing the network
	User or node in the network
	Edge in the network
and	Attribute vector
for Node	The risk of individual index
	The sensitivity weight of an -th attribute
	The visible value of the -th attribute
	Individual privacy risk
	Cascade index
	The posterior distribution
	The vulnerable weight selected into the seed set
	The weight factors
	The threshold value
	The probability of the subgraph
	The nodes set influenced by seed set after steps through cascade influence model, when the attacked set exists
	The total number of the steps in the cascade influence model