Privacy-Enhancing Preferential LBS Query for Mobile Social Network Users

Table 1

Symbols and notations.

Notation	Description
	Temporal social graph at time “”
	Vertices set
	Edge set
	Attribute set
	attribute
	Location set (locations of all the users) at time “”
	Edge set at time “”
	User
	Obfuscated user
	Location
	Number of users
	Radius considered for local group formation
	Desired anonymity level
	Cluster that the user belongs to
	Profile generalization of the user
	Information loss of the user