With the increasing integration of location-based services (LBSs) into various societal
domains, location privacy preservation has emerged as a pivotal concern. In most …

Geographic information system (GIS) enables operations for capturing, manipulating,
analyzing, and displaying the spatial characteristics of objects on Earth's surface. As the …

In spatial crowdsourcing, location-based task recommendation schemes are widely used to
match appropriate workers in desired geographic areas with relevant tasks from data …

Similarity search for trajectories, especially the top-k similarity query, has been widely used
in different fields, such as personalized travel route recommendation, car pooling, etc …

Privacy-preserving range query, which allows the server to implement secure and efficient
range query on encrypted data, has been widely studied in recent years. Existing privacy …

The widespread availability of similarity queries over trajectory data has led to numerous
real-world applications, such as traffic management and path planning. With the proliferation …

Reverse k nearest neighbor (RkNN) query has been widely applied in the targeted push of
information. Many schemes for the RkNN query on encrypted data have been proposed for …

Unauthorized sensing activities pose an increasing threat to individual privacy, particularly
in the industrial, scientific, and medical (ISM) band where regulatory frameworks remain …

Multi-location task allocation is one of the most crucial issues in vehicular crowdsourcing
(VCS). To ensure service quality, the VCS service provider prefers to assign multi-location …