Indexing the Uncertain Trajectories of Network-constrained Moving Objects
网络受限移动对象不确定性轨迹的索引

The uncertainty management problem for moving objects databases has been studied recently,with many models and algorithms proposed. However,very limited work has dealt with the index of uncertain trajectories for a running moving objects database. In this paper,we propose a framework,UTR-Tree,for indexing the uncertain trajectories of network-constrained moving objects. By the support of UTR-Tree,the moving objects database can efficiently track and query not only the historical,but also the current and eve...