The grid lines on the visualization represent a tree structure underneath. Every region is a node. When a node splits, it creates four children. The root node covers the entire space. Leaf nodes (nodes with no children) hold the actual points.
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
，这一点在heLLoword翻译官方下载中也有详细论述
Shay Banon Founder & CTO, Elastic
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