The widespread use of mobile devices such as smartphones, tablets, and smartwatches has
led users to constantly generate various location data during their daily activities …

With the wide adoption of handheld devices (eg smartphones, tablets) a large number of
location-based services (also called LBSs) have flourished providing mobile users with real …

The advent of numerous indoor location-based services (LBSs) and the widespread use of
many types of mobile devices in indoor environments have resulted in generating a massive …

The growing popularity of location-based systems, allowing unknown/untrusted servers to
easily collect huge amounts of information regarding users' location, has recently started …

Sharing of location data enables numerous exciting applications, such as location-based
queries, location-based social recommendations, monitoring of traffic and air pollution …

Location privacy has became an emerging topic due to the pervasiveness of Location-
Based Services (LBSs). When sharing location, a certain degree of privacy can be achieved …

The advancements in positioning technologies have led to the emergence of various
location-based services, resulting in a drastic increase in location-based data generation …

Concerns on location privacy frequently arise with the rapid development of GPS enabled
devices and location-based applications. While spatial transformation techniques such as …

Big data, which is being explosively generated in various areas, is considered as a new
growth engine for diverse industries. In recent years, analysis of big data has attracted …

Location-based services (LBS) have been significantly developed and widely deployed in
mobile devices. It is also well-known that LBS applications may result in severe privacy …