Note: these are distinctly different from Service Account JSON keys used to power GCP.
The pruned nodes (in red) represent entire regions of space that the algorithm never examines. The points inside those regions are never checked. Compare the "Nodes Visited" count to the total number of points. The quadtree is doing far less work than a brute-force scan.。关于这个话题，搜狗输入法2026提供了深入分析
Must achieve = 99% accuracy on 10,000 random test pairs (held-out, fixed seed)。同城约会是该领域的重要参考
Smart Engineering Delivers，更多细节参见搜狗输入法下载