The geo-social group query is to find a group of users for the query point based on location and social information. In this paper, we propose the range constrained group query (RCGQ) on attribute social graph, considering social information, ...

Conditional p-center problem is one of the classical facility location problems, which aims to find p facilities meeting the given distance condition with q pre-existing facilities. It is worth noting that, with the proliferation of the social ...

With the popularity of location-based information sharing in social networks, more and more businesses are trying to advertise their products online. In reality, users are more likely to choose a shopping location that is affordable in price and ...$\mathrm{}\mathrm{}$

With the popularity of smart mobile terminals and advances in wireless communication and positioning technologies, Geo-Social Networks (GSNs), which combine location awareness and social service functions, have become increasingly prevalent. The ...