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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.
根据韩国国土资源部通过电子邮件发送的声明，现代汽车集团将向韩国西海岸新万金地区的人工智能、机器人和氢业务投资9万亿韩元（约合63亿美元）。现代汽车集团与政府27日签署了投资协议，，将斥资4000亿韩元建设机器人制造工厂投资5.8万亿韩元建设人工智能数据中心，投资1万亿韩元建立用于生产和供应绿色氢的水电解设施，投资1.3万亿韩元用于建设太阳能发电设施。（新浪财经）