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.
“한국은 ‘얼죽아’의 본고장”… 스타벅스, 韓서 세계 최초 ‘에어로카노’ 출시
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16:36, 27 февраля 2026Забота о себе
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FT Digital Edition: our digitised print edition