Before analyzing Lucene's index file structure, you should understand the inverted index concept. An inverted index is an inside-out arrangement of documents in which terms take center stage.

在分析Lucene的索引文件结构之前，我们先要理解反向索引(Inverted index)这个概念，反向索引是一种以索引项为中心来组织文档的方式，每个索引项指向一个文档序列，这个序列中的文档都包含该索引项。

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The inverted probability loss function is used to examine the process of filling bottles with a liquid, as a result, the best setting of control center is found.

利用逆概率损失函数，以瓶装饮料的灌装过程为实例进行分析和例证，找到了控制中心的最佳定位。

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"What Doug has done has inverted that, so you see the bones before you see the rest, " said the center's director, John-Mario Sevilla.

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