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 …

To take advantages of location-based services (LBS) while protecting user privacy against
untrusted LBS providers, privacy preserving LBS have attracted increasing attention …

Location-Based Services (LBSs) provide valuable services, with convenient features for
mobile users. However, the location and other information disclosed through each query to …

In recent years, ridesharing has become a popular model that enables users to share their
rides with others. In this article, we introduce a novel ridesharing service, an Activity-aware …

The emergence of mobile Internet of Things (IoT) has brought much more convenience to
our daily life than ever before, modern intelligent vehicles are usually equipped with various …

The growing popularity of location-based services is giving untrusted servers relatively free
reign to collect huge amounts of location information from mobile users. This information can …

Among the advanced methods, differential privacy (DP), introducing independent Laplace
noise, has become an influential privacy mechanism owing to its provable and rigorous …

The growing advancements with the Internet of Things (IoT) devices handle an enormous
amount of data collected from various applications like healthcare, vehicle-based …

The thesis studies the privacy problems in various modern applications, such as
recommendation system, Internet of Things, location-based service and crowdsourcing …

Location-based services have seen a growth in popularity in recent decades, which was
facilitated by the advancements in mobile computing and innovations that allowed for …