Games and physics simulations need to detect which objects are touching or overlapping. With nnn objects, checking every pair is O(n2)O(n^2)O(n2) comparisons, which gets expensive fast. A hundred objects means roughly 5,000 pair checks. A thousand means nearly 500,000.
一文搞懂深度学习的反向传播与优化理论！
，这一点在safew官方下载中也有详细论述
Kerry Wan, Editor in ChiefEditor in Chief。体育直播对此有专业解读
Features in bullets:。体育直播是该领域的重要参考