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。关于这个话题，WPS下载最新地址提供了深入分析
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.
As of publication, the letter has over 450 signatures, almost 400 of which come from Google employees and the rest from OpenAI. Currently, roughly 50 percent of all participants have chosen to attach their names to the cause, with the rest remaining anonymous. All are verified as current employees of these companies. The original organizers of the letter aren’t Google or OpenAI employees; they say are unaffiliated with any AI company, political party or advocacy group.