Whereas the conventional applications mostly assume stationary or fixed users, more and more emphasis is placed on mobility, the need for people to stay connected while moving aro...
—Location-based Social Networks (LSNs) allow users to see where their friends are, to search location-tagged content within their social graph, and to meet others nearby. The rec...
— Next-generation mobile communication systems will provide “always best connected” services to mobile users via cellular networks that provide wide area coverage for global ...
While mobile handheld devices, such as cell phones and PDAs, provide productivity benefits, they also pose new risks. A vital safeguard against unauthorized access to a device’s...
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
HaRim Jung, Byung Ku Cho, Yon Dohn Chung, Ling Liu