Quadtrees aren't limited to point data. They can also partition regions of continuous data, like the pixels of an image.
Now, three researchers at the University of Pennsylvania, Alexander Platt, Daniel N. Harris, and Sarah Tishkoff, have done the converse analysis: examining the X chromosomes of the handful of completed Neanderthal genomes we have. It turns out there's also a strong bias toward modern human sequences there, as well, and the authors interpret that as selective mating, with Neanderthal males showing a strong preference for modern human females and their descendants.
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内容驱动与“本对本”模式的崛起
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Word-level timestamps:，这一点在夫子中也有详细论述
Diagrams from redesign 2, using Excalidraw[3]