智能涌现：给狗加个手不能解决这个问题吗？
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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Why the FT?See why over a million readers pay to read the Financial Times.。WPS下载最新地址是该领域的重要参考
MPs fear data centre boom could derail Miliband's net zero plans