日常生活中人们匿名在网络上发表的内容十分随意，语义模糊、无实际意义的文字随处可见，这些都属于非结构化的文本。有的时候，人们看到这些东西自己都不知道自己在说些什么，更别提让模型去理解。
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这也意味着，爱奇艺不只将AI大模型视为降本增效的工具，而是将其作为重构内容生产方式。，更多细节参见体育直播
The efficiency depends on the query size relative to the data distribution. A small query in a sparse region prunes almost everything. A query that covers the whole space prunes nothing (because every node overlaps), degenerating to a brute-force scan. The quadtree gives you the most benefit when your queries are spatially local, which is exactly the common case for map applications, game physics, and spatial databases.