人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
Author(s): Ruixuan Dong, Xiuqin Liu
，这一点在搜狗输入法2026中也有详细论述
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Add a cluster of points in one corner and watch that corner subdivide deeply while the rest of the space stays untouched. Then scatter a few points across the empty region and watch it split only where needed. The tree grows around the data.