Digital ecosystems are formed by “digital organisms” in complex, dynamic, and interrelated
ecosystems and utilize multiple technologies to provide cost-efficient digital services and …

The use of Voronoi diagram has traditionally been applied to computational geometry and
multimedia problems. In this paper, we will show how Voronoi diagram can be applied to …

By exchanging events in a vehicular ad hoc network (VANET), drivers can receive
interesting information while driving. For example, they can be informed of available parking …

Nearest neighbour queries (or kNN) have been used in many disciplines, including spatial
databases. kNN queries have gone beyond simply finding nearest objects. It is, therefore …

With the wide availability of mobile devices (smart phones, iPhones, etc.), mobile location-
based queries are increasingly in demand. One of the most frequent queries is range search …

One of the problems that arise in geographical information systems is finding objects that are
influenced by other objects. While most research focuses on k NN (k Nearest Neighbor) and …

In a decentralised system like P2P where each individual peers are considerably
autonomous, the notion of mutual trust between peers is critical. In addition, when the …

In the past decade, many works have focused on the development of moving object
database indexing and querying. Most of those works have concentrated on the common …

Geographical information systems (GIS) and applications assist us in commuting, traveling
and locating our points of interests. The efficient implementation and support of spatial …

Due to the popularity of Spatial Databases, many search engine providers have started to
expand their text searching capability to include geographical information. Because of this …