An implementation method of a location-based active map transformation system Y. Hosokawa, Naoki Kimura, and Naohisa Takahashi   View Paper (PDF)   Return to Session 1. Location Tracking Abstract A map is one of the most useful media in disseminating urgent location-based information (e.g., information on urgent events like congestion, accidents, fire, or sales within a limited time). However, it is generally difficult to recognize the geographical features of urgent information by utilizing maps in mobile computing environments, because there is no technology that automatically focuses on areas within the small display frame of the mobile tool being used.In this paper, we present an implementation method of a location-based active map transformation system that automatically focuses on areas in the display frame according to urgent location-based information being transmitted. Its main feature is that it pulls urgent information into the frame while maintaining the quality of the geographical information being represented. The new strategy reduces the number of new objects in the display frame and the number of objects deleted from it. As a result, it provides a map mobile users can understand.We clarify the feasibility and effectiveness of this method through several experiments. ©2006 Association for Computing Machinery