: This paper presents a model of data for mobile objects. The model is represented by spatial-temporal classes with mobility aspects, and represents the route and the trajectories ...
This paper proposes and evaluates interaction techniques for camera-equipped mobile phones. The proposed techniques are based on a visual code system that provides a number of orie...
In this paper we propose an efficient key agreement protocol suite for heterogeneous mobile ad-hoc groups, whose members use mobile devices with different performance limitations...
Spatial Alarms are reminders for mobile users upon their arrival of certain spatial location of interest. Spatial alarm processing requires meeting two demanding objectives: high ...
This paper presents the design of an interaction environment for fostering social interactions in electronic marketplaces. The environment incorporates a novel, spatially-organize...