Abstract. Computing visible information, such as a visible surface determination, is a significant problem and has been mainly studied in the fields of computational geometry and...
Yoshiyuki Kusakari, Yuta Sugimoto, Junichi Notoya,...
We consider spatio-temporal databases supporting spatial objects with continuously changing position and extent, termed moving objects databases. We formally define a data model f...
The emergence of location-aware services calls for new real-time spatio-temporal query processing algorithms that deal with large numbers of mobile objects and queries. In this de...
Mohamed F. Mokbel, Xiaopeng Xiong, Walid G. Aref, ...
Moving range queries over mobile objects are important in many location management applications. There have been quite a few research works in this area. However, all existing solu...
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...