“이제 그만” 상대국 정상의 말도 자르는 트럼프식 무례 화법[정미경의 이런영어 저런미국]
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.
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Медведев вышел в финал турнира в Дубае17:59
Author(s): Tianlong Wang, Ying Li, Yushi Ding, Zhenwei Liu, Yunlong Hao, Jie Zheng, Chunsheng Zhuang, Wei Zhang