If there is an existing data analysis process, what problems have you encountered with it?
如果有一个现有的数据分析过程，您碰到了哪些问题？
Before the text data is added to the index, it is processed by an analyzer (using an analysis process).
在将文本数据添加到索引前，由分析程序(使用分析过程)进行处理。
However, before you can perform an analysis, you need to extract and pre-process this data.
然而，在您执行分析以前，您需要提取并预处理这些数据。
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