node trajectory 中文意思是什麼
node trajectory
解釋
節點軌跡- node : n 1 節；結；瘤；【蟲類】結脈。2 【植物；植物學】莖節；【醫學】硬結腫；結，節結；【天文學】交點。3...
- trajectory : n （拋射體的）軌道，彈道；流軌；【幾】軌線。 a curved [direct fire flat highangle fire low] traje...
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Motivated by this observation, this paper studies the problem of efficiently processing k nn k - ge 1 search on r - tree - like structures storing historical information about moving object trajectories. two algorithms are developed based on best - first traversal paradigm, called bfp k nn and bft k nn, which handle the k nn retrieval with respect to the static query point and the moving query trajectory, respectively. both algorithms minimize the number of node access, that is, they perform a single access only to those qualifying nodes that may contain the final result
例如，若已知動物的軌跡，則動物學家可能提出如下兩種查詢： i在時間區間ti ， tj內找到離一個給定的靜態點譬如食物源實驗室等最近的k條動物軌跡ii在時間區間ti ， tj內找到離一條預先指定的動物軌跡最近的k條動物軌跡。
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