The popularity of mobile social networking services (mSNSs) is propelling more and more
businesses, especially those in retailing and marketing, into mobile and location-based …

We demonstrate VERDICT, a location-based range query service featuring the privacy-
preserving authentication capability. VERDICT adopts the common data-as-a-service …

State-of-the-art location-based services (LBSs) involve data owners, requesting clients, and
service providers. As LBSs become new business opportunities, there is an increasing …

Outsourcing data to third party data providers is becoming a common practice for data
owners to avoid the cost of managing and maintaining databases. Meanwhile, due to the …

With the popularity of location-based services and the abundant usage of smart phones and
GPS-enabled devices, the necessity of outsourcing spatial data has grown rapidly over the …

Abstract k nearest neighbor (k NN) queries are frequently used in location-based services
(LBSs), by which we wish to get k closest points of interest (POIs) given a certain point. Since …

With the rapid development of the Internet of Things (IoT), Location-Based Services (LBS)
are becoming more and more popular. However, for the users being served, how to protect …

(LBS), within the mobile computing domain, has enabled users to receive accurate points of
interest (POI) to their geo-tagged queries. While location-based services provide rich …

Location authentication is a young security requirement that has recently arisen in
ubiquitous computing applications. During the last decade, researchers have proposed …

A moving top-spatial keyword (M SK) query, which takes into account a continuously moving
query location, enables a mobile client to be continuously aware of the top-spatial web …