Processing proximity relations in road networks
Zhengdao Xu, Hans‐Arno Jacobsen · 2010
Applications ranging from location-based services to multi-player online gaming require continuous query support to monitor, track, and detect events of interest among sets of moving objects. Examples are alerting capabilities for detecting whether the distance, the travel cost, or the travel time among a set of moving objects exceeds a threshold. These types of queries are driven by continuous streams of location updates, simultaneously evaluated over many queries.