Triangulated Irregular Network
A quadtree does the same thing for two-dimensional space. It takes a rectangular region and divides it into four equal quadrants: northwest, northeast, southwest, southeast. If a quadrant has too many points in it, it subdivides again and again. Each subdivision creates smaller and smaller cells where points are densely packed.，这一点在同城约会中也有详细论述
有投资人也认为，在陪伴赛道里，AI老年人不是一个特别性感的赛道，按照赛道潜力：“AI养老陪伴，更多细节参见heLLoword翻译官方下载
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