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- W1527852402 abstract "A new type of the spatio-temporal queries is the Collision Detection Query (CDQ for short). In this paper, we focus on efficiently processing the CDQ on moving objects with uncertainty. Given two sets O and Q of objects, each of which moves with uncertain speed and direction, and a time instant t, the CDQ returns each pair of objects (o, q) (where o ∈ O and q ∈ Q), such that o is possible to collide with q at time t. The pairs of objects satisfying the CDQ are termed the collision-possible pairs (or CPPs for short). We first utilize the Rlsd-tree, in which the spatially proximate objects with similar uncertain speeds and directions are grouped together, to effectively manage the moving objects in O and Q. Then, with the two Rlsd-trees for O and Q, we develop the specialized index traversals combined with three pruning criteria, the location-pruning criterion, the angle-pruning criterion, and the speed-pruning criterion to efficiently determine the objects that may collide with each other." @default.
- W1527852402 created "2016-06-24" @default.
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- W1527852402 date "2015-04-01" @default.
- W1527852402 modified "2023-09-23" @default.
- W1527852402 title "Collision Detection Queries on moving objects with uncertain velocity" @default.
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- W1527852402 doi "https://doi.org/10.1109/issnip.2015.7106956" @default.
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