当模型优化方向始终贴着真实需求在走，就能减少在错误的方向上浪费算力；产品反馈能实时指导训练策略，每一次迭代的投入产出比都会更高。
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，更多细节参见TG官网-TG下载
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!
A programmer's text editor is their castle
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