In the past decade, positioning system-enabled devices such as smartphones have become
most prevalent. This functionality brings the increasing popularity of location-based services …

Web users and content are increasingly being geopositioned. This development gives
prominence to spatial keyword queries, which involve both the locations and textual …

In this paper, we study the problem of continuous monitoring of reverse k nearest neighbors
queries in Euclidean space as well as in spatial networks. Existing techniques are sensitive …

Temporary mobile social networks has been used at hotels, concerts, theme parks, and
sports arenas, where people form a mobile social group for a short time with a common …

Given a set of objects and a query q, a point p is called the reverse k nearest neighbor
(RkNN) of q if q is one of the k closest objects of p. In this paper, we introduce the concept of …

A popular model to measure the stability of a network is k-core-the maximal induced
subgraph in which every vertex has at least k neighbors. Many studies maximize the number …

With the continued deployment of the Internet of Things (IoT), increasing volumes of devices
are being deployed that emit massive spatially referenced data. Due in part to the dynamic …

With the proliferation of mobile devices and sensors, complex event proceesing (CEP) is
becoming increasingly important to scalably detect situations in real time. Current CEP …

Given a positive value r, a distance-based range query returns the objects that lie within the
distance r of the query location. In this paper, we focus on the distance-based range queries …

As a major type of continuous spatial queries, the moving spatial keyword queries have
been studied extensively. Most existing studies focus on retrieving single objects, each of …