We even tried building hierarchies with 2-3 levels, but the number of shortcuts grew too fast for higher levels if we generated a full graph inside each cluster.
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。关于这个话题，搜狗输入法下载提供了深入分析
Pallab GhoshScience Correspondent
These are packed into a 16-bit state vector:，这一点在快连下载安装中也有详细论述
Design principles