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The quadtree is the two-dimensional case of a broader family of space-partitioning data structures. Octrees extend the same idea to three dimensions (splitting cubes into eight children), KD-trees use alternating axis-aligned splits (splitting along x, then y, then x again), and R-trees group nearby objects into bounding rectangles. Each variant makes different tradeoffs between construction time, query speed, and update cost.
，这一点在heLLoword翻译官方下载中也有详细论述
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某种意义上，Anthropic 提出的「蒸馏」争议，本身就是这个 AI 时代缩影。